| |
About Diabetes
At present there
are at least 246 million people with diabetes world
wide. Diabetes is Fast Becoming a world pandemic.
There are at least ………. million people with diabetes
in the world day. This figure is expected to be
333 million in the year 2025.
People with diabetes are two to four times more
likely to develop cardiovascular disease than people
without diabetes unless preventive action is taken
NOW!
What is Diabetes?
Diabetes essentially means that your blood glucose/
blood sugar is too high!!!! Insulin (a hormone secreted
by the pancreas) helps the cells absorb blood.
Types of Diabetes.
Type 1 diabetes, or juvenile-onset diabetes or insulin-dependent
diabetes, IDDM In this form of disease, the pancreas
is not able to produce insulin.
Type 2 diabetes, adult-onset diabetes or
non insulin-dependent diabetes NIDDM. The fat, muscle
and liver cells are not able to use insulin properly.
The pancreas secretes additional insulin but later
cannot meet the demand. Being overweight and inactive
increasing the chance of developing type 2 diabetes.
Gestational diabetes. Some women develop
diabetes during the last stage of pregnancy due
to hormonal imbalances.
Musculoskeletal Rheumatism
Soft tissue rheumatism is very common in diabetics.
It could affect the muscles, tendons, capsule of
joints, etc. So those having high blood sugar levels
are more likely to have more body and joint pain.
Some of the common aches and pains associated with
a diabetic are pain in the shoulder with stiffness,
pain on bending fingers with difficulty in straightening
them, tingling in the hand and fingers due to pressure
on the nerve at the wrist puffiness of the hand.
Sometimes there is thickening of the skin over the
upper back or stiffness of the neck and back due
to calcification of spinal ligaments.
These are only some of the common musculoskeletal
complications noted in diabetic patients.
What is Diabetes Mellitus?
Diabetes mellitus is a metabolic disorder characterized
by a congenital (similar to juvenile-onset or Type
I diabetes mellitus in people) or acquired (similar
to adult-onset or Type II diabetes mellitus in people)
inability to transport sugar from the bloodstream
into cells. Once inside cells, sugar (glucose) is
used to generate the energy that is essential for
normal cellular function. Diabetes in animals is
most commonly the acquired form and typically occurs
in middle-aged to older pets. The disease results
when glucose transport channels on cell membranes
are insensitive to the effects of insulin (or when
there are too few channels) or when the quantity
of insulin produced by the pancreas is inadequate
to activate the number of glucose channels needed
to maintain normal cellular metabolism. In other
words, insulin is the "key" that allows special
"gates" for sugar transport across cell membranes
to be opened. A diabetic, therefore, has too much
glucose in the bloodstream where most of it cannot
be utilized, and not enough glucose within the cells
themselves, where it is most needed for energy.
As a result, cells attempt to derive energy from
alternate metabolic pathways, such as fat breakdown.
Excessive use of these alternate energy pathways
culminates in production of harmful by-products
called ketones. The accumulation of ketones causes
the body's pH to become acidic (ketoacidosis) which
makes the cellular environment inhospitable for
normal metabolic functions. This condition can ultimately
become life-threatening and requires aggressive
medical therapy. Fortunately, most diabetics give
some indication of their underlying condition, such
as drinking and urinating excessively, before they
develop ketoacidosis. Treating diabetics before
they become ketotic is considerably more straightforward,
safer, and of course less expensive than taking
a "wait-and-see" approach to changes in drinking
behavior. Equally important, diagnostic testing
may reveal other serious conditions which can cause
excessive urination and drinking, such as kidney
or liver disease, adrenal hormone or electrolyte
imbalances and uterus infections.
Type 1 Diabetes Mellitus
Alternative names
Insulin-dependent diabetes mellitus; Juvenile onset
diabetes; Diabetes - Type 1
Definition
Type 1 diabetes is a chronic (lifelong) disease
that occurs when the pancreas produces too little
insulin to regulate blood sugar levels appropriately.
Causes, incidence, and risk factors
Diabetes is a life-long disease for which there
is not yet a cure. There are several forms of diabetes,
including:
- Type 1 diabetes, often called juvenile or
insulin-dependent diabetes
- Type 2 diabetes, often called adult or non-insulin-dependent
diabetes
- Gestational diabetes, which occurs during
pregnancy.
For all types of diabetes, the metabolism of carbohydrates
(including sugars such as glucose), proteins, and
fats is altered.
In type 1 diabetes, the beta cells of the pancreas
produce little or no insulin, the hormone that allows
glucose to enter body cells. Once glucose enters
a cell, it is used as fuel.
Without adequate insulin, glucose builds up in the
bloodstream instead of going into the cells. The
body is unable to use this glucose for energy despite
high levels in the bloodstream, leading to increased
hunger. In addition, the high levels of glucose
in the blood causes the patient to urinate more,
which in turn causes excessive thirst. Within 5
to 10 years after diagnosis, the insulin-producing
beta cells of the pancreas are completely destroyed,
and no more insulin is produced.
Type 1 diabetes can occur at any age, but it usually
starts in people younger than 30. Symptoms are usually
severe and occur rapidly.
The exact cause of type 1 diabetes is not known.
Type 1 diabetes accounts for 3% of all new cases
of diabetes each year. There is 1 new case per every
7,000 children per year. New cases are less common
among adults older than 20.
Symptoms
- increased thirst
- increased urination
- weight loss despite increased appetite
- nausea
- vomiting
- abdominal pain
- fatigue
- absence of menstruation
Signs and tests
The following tests can be used to diagnose diabetes:
- urinalysis shows glucose and ketone bodies
in the urine, but a blood test is required for
diagnosis.
- fasting blood glucose is 126 mg/dL or higher.
- random (nonfasting) blood glucose exceeds
200 mg/dL (this must be confimed with a fasting
test).
- insulin test (low or undetectable level of
insulin).
- C-peptide test (low or undetectable level
of the protein C-peptide, a by-product of insulin
production).
Treatment
At diagnosis, the immediate goals of treatment are
to treat diabetic ketoacidosis (also called DKA)
and high blood glucose levels. Because of the sudden
onset and severity of symptoms in type 1 diabetes,
treatment for newly diagnosed people may involve
hospitalization.
The long-term goals of treatment are to prolong
life, reduce symptoms, and prevent diabetes-related
complications such as blindness, kidney failure,
and amputation of limbs.
These goals are accomplished through education,
insulin use, meal planning and weight control, exercise,
foot care, and careful self-testing of blood glucose
levels.
INSULIN
Insulin lowers blood sugar by allowing it to leave
the blood stream and enter cells. Everyone needs
insulin. People with type I diabetes can't make
their own insulin, and they must take insulin every
day.
Insulin is injected under the skin using a syringe,
or in some cases, an infusion pump delivers the
insulin continuously. It is not available in an
oral form.
Insulin preparations differ in how fast they start
to work and how long they last. The health care
professional reviews blood glucose levels to determine
the appropriate type of insulin the person should
use. More than one type of insulin may be mixed
together in an injection to achieve the best control
of blood glucose.
The injections are needed, in general, from 1 to
4 times a day. People are taught how to give insulin
injections by their health care provider or a diabetes
nurse educator. Initially, a child's injections
may be given by a parent or other adult. By age
14, most children can be expected (but should not
be required) to give their own injections.
DIET
Meal planning for type 1 diabetes requires consistency
to allow food and insulin to work together to regulate
blood glucose levels. If meals and insulin are out
of balance, extreme variations in blood glucose
can occur.
The American Diabetes Association and the American
Dietetic Association has information for planning
healthy, balanced meals. Consultation with a registered
dietitian or nutrition counselor is an invaluable
tool for meal planning and dietary control for diabetics.
PHYSICAL ACTIVITY
Regular exercise is especially important for the
person with diabetes, as it helps control the amount
of sugar in the blood and helps burn excess calories
and fat to achieve optimal weight.
Before people with diabetes begin any exercise program,
they should obtain medical approval. Type 1 diabetics
must take special precautions before, during and
after participation in intense physical activity
or exercise.
SELF-TESTING
Blood glucose monitoring is done by checking the
glucose content of a small drop of blood. The testing
is done on a regular basis and will inform the person
with diabetes how well diet, medication, and exercise
are working together to control diabetes.
The results can be used to adjust meals, activity,
or medications to keep blood-sugar levels within
an appropriate range. It will provide valuable information
for the health care provider to suggest changes
to improve care and treatment. Testing will identify
high and low blood-sugar levels before serious problems
develop.
FOOT CARE
People with diabetes are prone to foot problems
because of complications related to the illness.
Diabetes causes damage to the blood vessels and
nerves, which can result in a decreased ability
to sense trauma or pressure on the foot. A foot
injury could go unnoticed until severe infection
develops.
Additionally, diabetes alters the bodies immune
system, decreasing the body's ability to fight infection.
Small infections can rapidly progress to death of
the skin and other tissues, necessitating amputation
of the affected limb.
To prevent injury to the feet, diabetics should
adopt a daily foot care routine.
TREATING LOW BLOOD SUGAR
Low blood sugar, known as hypoglycemia, can occur
in diabetics when they use too much insulin, exercise
too much, or have not eaten enough food. Hypoglycemia
can develop quickly in people with diabetes. Symptoms
of low blood sugar typically appear when the sugar
level falls below 70. Watch for weakness, shaking,
sweating, headache, nervousness, and hunger.
If these symptoms occur and you have a blood sugar
test kit available, do a blood sugar check. If the
level is low, the person with diabetes should eat
something with sugar: fruit juice, several teaspoons
of sugar, a cup of skim milk, or regular soda. If
you don't have a test kit handy, sugar should be
eaten anyway - it can't hurt. Symptoms should subside
within 15 minutes. If the symptoms don't subside,
more sugar should be eaten and the sugar level tested
again. AFTER the symptoms subside, more substantial
food can be eaten. Eat simple sugar FIRST to get
the situation under control. Even if you or your
child is hungry, "real" food should not be eaten
until the sugar level comes up - real food won't
produce enough sugar and takes too long to digest.
If you are a parent, relative, or friend of someone
experiencing these symptoms, monitor the person
closely. If symptoms become worse -- confusion,
seizures, or unconsciousness -- give the person
a shot of glucagon. If you don't have glucagon,
call 911 immediately.
You should have some glucagon stored for emergencies.
Make sure everyone in your home, as well as babysitters
and caregivers, knows how to use it. Periodically
remind everyone how to use it, and check the expiration
date.
Don't panic. Glucagon works very fast -- usually
within 15 minutes. While you are waiting for the
person to revive, keep him on his side to prevent
choking. If the person is not better in 15 minutes,
call 911.
TREATING HIGH KETONES
When there is not enough insulin to move glucose
into cells, glucose can build up in the blood. The
body then looks for other forms of energy and uses
fat as a fuel source. As fats are broken down, acids
called ketones build up in the blood and urine.
In high levels, ketones are poisonous to body tissue.
This condition is known as ketoacidosis.
You can check for ketones using a simple urine test
available at pharmacies. This test should be performed
every 4-6 hours anytime a person with diabetes is
registering blood sugar above 240; sick; unusually
thirsty or has a dry mouth; urinating frequently;
or vomited
The warning signs that ketoacidosis is getting serious
might include flushed face, dry skin and mouth,
nausea or vomiting, stomach pain, deep, rapid breathing,
or fruity breath odor.
If these symptoms occur, call the doctor or go to
the emergency room right away. If left untreated,
this condition will lead to coma and even death.
MONITORING
- Visit your physician and/or diabetes educator
at least 4 times a year.
- Have your glycosylated hemoglobin (HbA1c)
measured 2-4 times a year to evaluate your overall
glucose control.
- (Ask your doctor how often you should be tested.)
Have your cholesterol and triglyceride levels
and kidney
- function evaluated yearly.
- Visit your ophthalmologist (preferably one
that specializes in diabetic retinopathy) at
least once a year, more frequently if signs
of diabetic retinopathy develop.
- Every 6 months have a thorough dental cleaning
and examination. Inform your dentist and hygienist
that you have diabetes.
- Monitor your feet every day for early signs
of injury or infection. Make sure your health
care provider inspects your feet at each visit.
- Stay up-to-date with all of your vaccinations
(including pneumococcal), and get a flu shot
every year in the fall.
EDUCATION
You are the most important person in managing your
diabetes. Diabetes education is a crucial part of
the treatment plan. Diabetes education basically
involves learning how to live with your diabetes.
Knowledge of disease management is imperative to
avoid developing short-term complications such as
hypoglycemia and hyperglycemia and to delay or slow
the onset of long-term complications of the disease
such as diabetic retinopathy (eye disease) or nephropathy
(kidney disease).
You should be knowledgeable about the basic principles
of diabetes management. Basic "survival skills"
include:
- how to recognize and treat low blood sugar
(hypoglycemia)
- how to recognize and treat high blood sugar
(hyperglycemia)
- diabetes meal planning " how to administer
insulin
- how to monitor blood glucose and urine ketones
- how to adjust insulin and/or food intake during
exercise
- how to handle sick days
- where to buy diabetic supplies and how to
store them
Expectations (prognosis)
The outcome for people with diabetes varies. Recent
studies show that tight control of blood glucose
can prevent or delay the progression of eye disease,
kidney disease and nervous system disease that is
caused by diabetes. However, complications may occur
even when good diabetes control is achieved with
insulin and diet.
Complications
EMERGENCY COMPLICATIONS:
In a person with type 1 diabetes, the body will
use fat as a fuel if insulin is not present. The
by-products of fat metabolism are ketones. Ketones
build up in the blood and "spill" over into the
urine.
A condition called ketoacidosis develops when the
blood is made acidic by the ketones.
Hypoglycemia (low blood glucose) occurs when the
balance between insulin, food intake, and exercise
is disturbed. Symptoms of mild hypoglycemia include
hunger, nervousness, and fast heart rate. More serious
hypoglycemia can lead to confusion and even loss
of consciousness. Loss of consciousness due to low
blood sugar is called hypoglycemic coma.
LONG-TERM COMPLICATIONS:
People who have had diabetes for several years are
likely to develop long-term complications, which
can be minimized but not entirely eliminated by
proper diabetic management:
By age 55, about 35% of men and women with type
1 diabetes have died from a heart attack compared
to 8% of nondiabetic men and 4% of nondiabetic women.
People with type 1 diabetes are also at higher risk
to develop blockages in the major arteries of the
legs than nondiabetics. Lower the risk of vascular
disease by aggressively treating cholesterol and
blood pressure, exercising regularly, and avoiding
or quitting tobacco products.
Microvascular (small vessel) changes occur in capillaries
of every organ of the body. There is a thickening
of the wall of the small blood vessels. These changes
are responsible for many of the diabetes complications.
Changes in the small blood vessels of the retina
(also known as diabetic retinopathy) predispose
the diabetic to several eye disorders. After 15
years of diabetes, 80% of diabetics will have some
diabetic retinopathy. If bleeding and scarring has
developed, a retinal detachment may occur, causing
blindness. Vascular changes in the iris may cause
obstruction of the flow of ocular fluid and cause
glaucoma. Diabetics are also more likely than nondiabetics
to develop cataracts.
- DIABETIC NEPHROPATHY (kidney disease)
Kidney abnormalities may be noted early in the disease.
Poorly controlled diabetes may accelerate the development
of kidney failure. Urinary tract infections in diabetics
tend to be more severe and may result in kidney
damage.
Diabetics are more vulnerable to kidney damage from
high blood pressure than nondiabetics.
- DIABETIC NEUROPATHY(nerve damage)
People with diabetes may develop temporary or permanent
damage to nerve tissue. Diabetic neuropathy is more
likely to develop if blood glucose is poorly controlled.
Some diabetics will not develop neuropathy, while
others may develop this condition relatively early.
On average, symptoms such as numbness and tingling
occur 10 to 20 years after diabetes has been diagnosed.
The feet of people with diabetes are very susceptible
to infection and injury. Many diabetes-related hospital
admissions are for foot problems, and a significant
number of non-accident-related leg amputations are
performed on diabetics.
Several foot problems are common in people with
diabetes, including skin changes (loss of hair;
loss of ability to sweat; and dry, cracked skin),
arterial insufficiency (impaired blood supply to
feet), neuropathy, and specific foot deformities
(hallux valgus, bunion, hammertoe, and calluses).
- SKIN AND MUCUS MEMBRANE PROBLEMS
People with diabetes are more likely than nondiabetics
to develop infections. Hyperglycemia (high blood
sugar) predisposes diabetics to fungal infections
of the skin, nails, and female genital tract and
to urinary tract infection.
Calling your health care provider
Medical follow-up for a person newly diagnosed with
type 1 diabetes should probably occur weekly until
good control of blood glucose is achieved. The health
care provider will want to review results of home
glucose monitoring and urine testing, and a diary
of meals, snacks, and insulin injections. As the
disease becomes more stable, follow-up visits will
be less frequent. Periodic evaluation is very important
for the evaluation of long-term complications associated
with diabetes.
Call your health care provider or go to the emergency
room if symptoms of ketoacidosis are present:
- increased thirst and urination
- nausea
- deep and rapid breathing
- abdominal pain
- sweet-smelling breath
- loss of consciousness (This may occur in insulin
dependent diabetics when a dose of insulin is
missed, or if illness or infection is present.)
Go to the emergency room or call the local emergency
number (such as 911) if symptoms of severe hypoglycemia
or insulin reaction are present:
- trembling
- weakness
- drowsiness
- headache
- confusion
- dizziness
- double vision
- lack of coordination
- convulsions or unconsciousness
Early signs of hypoglycemia may be treated at home
by eating sugar or candy or injecting glucagon.
If the signs of hypoglycemia are not relieved by
the above action or if blood glucose levels remain
below 60 mg/dL go to the emergency room.
(from the National Institute of Health)
Type 2 Diabetes Mellitus
Alternative names
Noninsulin-dependent diabetes mellitus; Diabetes
- Type 2
Definition
Type 2 diabetes is a chronic, life-long disease
that results when the body's insulin does not work
effectively. Insulin is a hormone released by the
pancreas in response to increased levels of blood
sugar (glucose) in the blood.
Causes, incidence, and risk factors
Diabetes is caused by a problem in the way your
body makes or uses insulin. Insulin is necessary
for glucose to move from the blood to the inside
of the cells.
Unless glucose gets into cells, the body cannot
use it for energy. Excess glucose remains in the
blood, and is then removed by the kidneys. The symptoms
inlcude excessive thirst, frequent urination, hunger,
and fatigue.
There are several types of diabetes:
- Type 1 diabetes, which requires total insulin
replacement in order to live because the body
does not make adequate amounts
- Type 2 diabetes, which is related to insulin
resistance (lack of the ability of the body
to respond to insulin appropriately) and is
often accompanied by obesity and high cholesterol
Gestational diabetes, which occurs during pregnancy
Diabetes affects up to 6% of the population in the
U.S. Type 2 diabetes accounts for 90% of all cases.
A main component of type 2 diabetes is "insulin
resistance". This means that the insulin produced
by your pancreas cannot connect with fat and muscle
cells to let glucose inside and produce energy.
This causes hyperglycemia (high blood glucose).
To compensate, the pancreas produces more insulin.
The cells sense this flood of insulin and become
even more resistant, resulting in a vicious cycle
of high glucose levels and often high insulin levels.
Type 2 diabetes usually occurs gradually. Most people
with type 2 diabetes are overweight at the time
of diagnosis. However, the disease can also develop
in lean people, especially if elderly.
Genetics play a large role in type 2 diabetes and
family history is a risk factor. However, low activity
level, poor diet, and excess body weight (especially
around the waist) significantly increase your risk
for type 2 diabetes. Other risk factors include:
- Race/ethnicity; African-Americans, Hispanic-Americans,
and Native Americans all have high rates of
diabetes
- Age greater than 45 years
- Previously identified impaired glucose tolerance
by your doctor
- High blood pressure
- HDL cholesterol of less than 35 and/or triglyceride
- level of greater than 250
- History of gestational diabetes
Symptoms
Often, people with type 2 diabetes have no symptoms
at all. If you do have symptoms, they may include:
- increased thirst
- increased urination
- increased appetite
- fatigue
- blurred vision
- frequent and/or slow-healing infections (including
bladder,
- vaginal, skin)
- erectile dysfunction in men
Signs and tests
Type 2 diabetes is diagnosed with the following
blood tests:
- Fasting blood glucose level -- diabetes is
diagnosed if higher than 126 mg/dL on two occasions.
- Random (non-fasting) blood glucose level --
diabetes is suspected if higher than 200 mg/dL
and accompanied by the classic symptoms of increased
thirst, urination, and fatigue. (This test must
be confirmed with a fasting blood glucose test.)
- Oral glucose tolerance test -- diabetes is
diagnosed if glucose level is higher than 200
mg/dL after 2 hours.
Treatment
The first goals are to eliminate the symptoms and
stabilize your blood glucose levels. The ongoing
goals are to prevent long-term complications and
prolong your life. The primary treatment for type
2 diabetes is exercise and diet.
LEARN THESE SKILLS
You should learn basic diabetes management skills.
They will help prevent complications and the need
for medical care. These skills include:
- How to test and record your blood glucose
(see blood glucose monitoring).
- What to eat and when.
- How to take medications, if indicated.
- How to recognize and treat low and high blood
sugar.
- How to handle sick days.
- Where to buy diabetes supplies and how to
store them.
It may take several months to learn the basic skills.
Once your condition has stabilized, continue to
educate yourself about the disease process, how
to control and live with diabetes, and long-term
complications of the disease. Over time, stay current
on new research and treatment.
SELF-TESTING Blood sugar testing, or self-monitoring
of blood glucose, is done by checking the glucose
content of a small drop of blood. Regular testing
tells you how well diet, exercise, and medication
are working together to control diabetes.
The results of the test can be used to adjust meals,
activity, or medications to keep blood sugar levels
in an appropriate range. Testing provides valuable
information for the health care provider and identifies
high and low blood sugar levels before serious problems
develop.
When testing blood sugars yourself, a glucometer
is used. A glucometer is a small device that provides
an exact reading of blood glucose. A test strip
is used to collect a small drop of blood, obtained
by pricking the finger with a small, specially-designed
needle (called a lancet).
The strip is then placed in the meter. Results are
available within 30 to 45 seconds. A health care
provider or diabetes educator will help set up an
appropriate testing schedule for you. You will also
be taught how to respond to different ranges of
glucose values obtained when you self-test.
Tests are usually done before meals and at bedtime.
More frequent testing may be indicated during illness
or stress. Accurate record keeping of test results
will make them more useful for planning how to best
control your diabetes.
DIET AND WEIGHT CONTROL
Meal planning includes choosing healthy foods, eating
the right amount of food, and eating meals at the
right time. You should work closely with your health
care provider to learn how much fat, protein, and
carbohydrates you need in your diet. Your specific
meal plans need to be tailored to your food habits
and preferences. A registered dietitian can be helpful
in determining your specific, individual dietary
needs.
In type 2 diabetes, weight management and a well-balanced
diet are important. Some people with type 2 diabetes
can stop medications after intentional weight loss,
although the diabetes is still present. Consultation
with a registered dietitian is an invaluable planning
tool.
REGULAR PHYSICAL ACTIVITY
Regular exercise is important for everyone, but
especially if you have diabetes. Regular exercise
helps control the amount of glucose in the blood.
It also helps burn excess calories and fat to achieve
optimal weight.
Exercise improves overall health by improving blood
flow and blood pressure. It naturally decreases
insulin resistance even without weight loss. Exercise
also increases the body's energy level, lowers tension,
and improves your ability to handle stress. Everyone
should obtain medical approval before starting an
exercise program, but this is especially important
if you have diabetes.
The following should be considered:
- Choose an enjoyable physical activity that
is appropriate for the current fitness level.
- Exercise every day, and at the same time of
day, if possible.
- Monitor blood glucose levels by home testing
before and after exercise.
- Carry food that contains a fast-acting carbohydrate
in case blood glucose levels get too low during
or after exercise.
- Wear a diabetes identification bracelet and
carry change for a phone call in case of emergency.
- Drink extra fluids that do not contain sugar
before, during and after exercise.
- Changes in exercise intensity or duration
may require modification of your diet or medication
to keep blood glucose levels in an appropriate
range.
MEDICATION
When you cannot achieve normal or near-normal blood
glucose levels with diet and exercise, medication
is added to the treatment plan. Your doctor will
start you on oral (by mouth) medicines, such as:
- Oral sulfonylureas (like glimepiride, glyburide,
and tolazamide) trigger the pancreas to make
more insulin.
- Biguanides (Metformin) tell the liver to decrease
its production of glucose, which increases glucose
levels in the blood stream.
- Alpha-glucosidase inhibitors (such as acarbose)
decrease the absorption of carbohydrates from
the digestive tract, thereby lowering the after-meal
glucose levels.
- Thiazolidinediones (such as rosiglitazone)
help insulin work better at the cell site. In
essence, they increase the cell's sensitivity
(responsiveness) to insulin.
- Meglitinides (including repaglinide and nateglinide)
trigger the pancreas to make more insulin in
response to how much glucose is in the blood.
If you continue to have poor blood glucose control
despite lifestyle changes and using oral medicines,
your doctor will prescribe insulin. Insulin may
also be prescribed if you have had a bad reaction
to oral medicines. Insulin must be injected under
the skin using a syringe and cannot be taken by
mouth.
Insulin preparations differ in how fast they start
to work and how long they work. The health-care
professional will determine the appropriate type
of insulin to use and will counsel you on what time
of day to use it.
More than one type may be mixed together in an injection
to achieve the best control of blood glucose. The
injections are needed, in general, from one to four
times a day. You will be taught how to give yourself
injections by your doctor or a diabetes educator
referred by your doctor.
FOOT CARE
People with diabetes are prone to foot problems
because of complications caused by damage to blood
vessels and nerves and decreased ability to fight
infection. Blood flow to the feet may become compromised
and damage to the nerves may cause an injury to
the foot to go unnoticed until infection develops.
Death of skin and other tissue can occur. If left
untreated, amputation of the affected foot may ultimately
be necessary.
To prevent injury to the feet, diabetics should
adopt a daily routine of checking and caring for
the feet as follows:
- Check your feet every day, and report sores
or changes and signs of infection.
- Wash feet every day with lukewarm water and
mild soap, and dry them thoroughly.
- Soften dry skin with lotion or petroleum jelly.
- Protect feet with comfortable, well-fitting
shoes.
- Exercise daily to promote good circulation.
- See a podiatrist for foot problems, or to
have corns or calluses removed.
- Remove shoes and socks during a visit to
the health care provider to remind them to examine
your feet.
- Discontinue smoking because it worsens blood
flow to the feet.
CONTINUING CARE
A person with type 2 diabetes should have a visit
with a diabetes care provider every three months.
A thorough three-month evaluation includes:
- Glycosylated hemoglobin (HbA1c) is a weighted
three-month average of what your blood glucose
has been. This test measures how much glucose
has been sticking to the red blood cells. It
also indicates how much glucose has been sticking
to other cells. A high HbA1c is an indicator
of risk for long-term complications. Currently,
the ADA recommends an HbA1c of less than 7%
to protect oneself from complications. This
test should be done every three months.
- pressure check.
- Foot and skin examination.
- Ophthalmoscopy examination.
- Neurological examination.
The following evaluations should be done at least
annually:
- Random microalbumin (urine test for protein).
- BUN and serum creatinine.
- Serum cholesterol, HDL, and triglycerides.
- ECG.
- Dilated retinal exam.
Expectations (prognosis)
The risks of long-term complications from diabetes
can be reduced. Those with the best control of blood
glucose and blood pressure significantly reduce
their risk of death, stroke, heart failure, and
other complications. Reduction of HbA1c by even
one percentage point can decrease your risk for
complicatons by 25%.
Complications
- Emergency complications include diabetic coma.
- Long-term complications include:
- diabetic retinopathy (eye disease)
- diabetic nephropathy (kidney disease)
- diabetic neuropathy (nerve damage)
- peripheral vascular disease (damage to blood
vessels/circulation)
- high cholesterol, high blood pressure, atherosclerosis,
and coronary artery disease
Calling your health care provider
Call your health care provider immediately if you
have:
- trembling
- weakness
- drowsiness
- headache
- confusion
- dizziness
- double vision
- lack of coordination
These symptoms can rapidly progress to emergency
conditions (such as convulsions, unconsciousness,
or hypoglycemic coma).
Prevention
Everyone over 45 should have their blood glucose
checked at least every three years. Regular testing
of random blood glucose should begin at a younger
age and be performed more often if you are at particular
risk for diabetes. Maintain a healthy body weight
and keep an active lifestyle to help prevent the
onset of type 2 diabetes.
What is Diabetes Mellitus?
Diabetes mellitus is a metabolic disorder characterized
by a congenital (similar to juvenile-onset or Type
I diabetes mellitus in people) or acquired (similar
to adult-onset or Type II diabetes mellitus in people)
inability to transport sugar from the bloodstream
into cells. Once inside cells, sugar (glucose) is
used to generate the energy that is essential for
normal cellular function. Diabetes in animals is
most commonly the acquired form and typically occurs
in middle-aged to older pets. The disease results
when glucose transport channels on cell membranes
are insensitive to the effects of insulin (or when
there are too few channels) or when the quantity
of insulin produced by the pancreas is inadequate
to activate the number of glucose channels needed
to maintain normal cellular metabolism. In other
words, insulin is the "key" that allows special
"gates" for sugar transport across cell membranes
to be opened. A diabetic, therefore, has too much
glucose in the bloodstream where most of it cannot
be utilized, and not enough glucose within the cells
themselves, where it is most needed for energy.
As a result, cells attempt to derive energy from
alternate metabolic pathways, such as fat breakdown.
Excessive use of these alternate energy pathways
culminates in production of harmful by-products
called ketones. The accumulation of ketones causes
the body's pH to become acidic (ketoacidosis) which
makes the cellular environment inhospitable for
normal metabolic functions. This condition can ultimately
become life-threatening and requires aggressive
medical therapy. Fortunately, most diabetics give
some indication of their underlying condition, such
as drinking and urinating excessively, before they
develop ketoacidosis. Treating diabetics before
they become ketotic is considerably more straightforward,
safer, and of course less expensive than taking
a "wait-and-see" approach to changes in drinking
behavior. Equally important, diagnostic testing
may reveal other serious conditions which can cause
excessive urination and drinking, such as kidney
or liver disease, adrenal hormone or electrolyte
imbalances and uterus infections.
Type 1 Diabetes Mellitus
Alternative names
Insulin-dependent diabetes mellitus; Juvenile onset
diabetes; Diabetes - Type 1
Definition
Type 1 diabetes is a chronic (lifelong) disease
that occurs when the pancreas produces too little
insulin to regulate blood sugar levels appropriately.
Causes, incidence, and risk factors
Diabetes is a life-long disease for which there
is not yet a cure. There are several forms of diabetes,
including:
- Type 1 diabetes, often called juvenile or
insulin-dependent diabetes
- Type 2 diabetes, often called adult or non-insulin-dependent
diabetes
- Gestational diabetes, which occurs during
pregnancy.
For all types of diabetes, the metabolism of carbohydrates
(including sugars such as glucose), proteins, and
fats is altered.
In type 1 diabetes, the beta cells of the pancreas
produce little or no insulin, the hormone that allows
glucose to enter body cells. Once glucose enters
a cell, it is used as fuel.
Without adequate insulin, glucose builds up in the
bloodstream instead of going into the cells. The
body is unable to use this glucose for energy despite
high levels in the bloodstream, leading to increased
hunger. In addition, the high levels of glucose
in the blood causes the patient to urinate more,
which in turn causes excessive thirst. Within 5
to 10 years after diagnosis, the insulin-producing
beta cells of the pancreas are completely destroyed,
and no more insulin is produced.
Type 1 diabetes can occur at any age, but it usually
starts in people younger than 30. Symptoms are usually
severe and occur rapidly.
The exact cause of type 1 diabetes is not known.
Type 1 diabetes accounts for 3% of all new cases
of diabetes each year. There is 1 new case per every
7,000 children per year. New cases are less common
among adults older than 20.
Symptoms
- increased thirst
- increased urination
- weight loss despite increased appetite
- nausea
- vomiting
- abdominal pain
- fatigue
- absence of menstruation
Signs and tests
The following tests can be used to diagnose diabetes:
- urinalysis shows glucose and ketone bodies
in the urine, but a blood test is required for
diagnosis.
- fasting blood glucose is 126 mg/dL or higher.
- random (nonfasting) blood glucose exceeds
200 mg/dL (this must be confimed with a fasting
test).
- insulin test (low or undetectable level of
insulin).
- C-peptide test (low or undetectable level
of the protein C-peptide, a by-product of insulin
production).
Treatment
At diagnosis, the immediate goals of treatment are
to treat diabetic ketoacidosis (also called DKA)
and high blood glucose levels. Because of the sudden
onset and severity of symptoms in type 1 diabetes,
treatment for newly diagnosed people may involve
hospitalization.
The long-term goals of treatment are to prolong
life, reduce symptoms, and prevent diabetes-related
complications such as blindness, kidney failure,
and amputation of limbs.
These goals are accomplished through education,
insulin use, meal planning and weight control, exercise,
foot care, and careful self-testing of blood glucose
levels.
INSULIN
Insulin lowers blood sugar by allowing it to leave
the blood stream and enter cells. Everyone needs
insulin. People with type I diabetes can't make
their own insulin, and they must take insulin every
day.
Insulin is injected under the skin using a syringe,
or in some cases, an infusion pump delivers the
insulin continuously. It is not available in an
oral form.
Insulin preparations differ in how fast they start
to work and how long they last. The health care
professional reviews blood glucose levels to determine
the appropriate type of insulin the person should
use. More than one type of insulin may be mixed
together in an injection to achieve the best control
of blood glucose.
The injections are needed, in general, from 1 to
4 times a day. People are taught how to give insulin
injections by their health care provider or a diabetes
nurse educator. Initially, a child's injections
may be given by a parent or other adult. By age
14, most children can be expected (but should not
be required) to give their own injections.
DIET
Meal planning for type 1 diabetes requires consistency
to allow food and insulin to work together to regulate
blood glucose levels. If meals and insulin are out
of balance, extreme variations in blood glucose
can occur.
The American Diabetes Association and the American
Dietetic Association has information for planning
healthy, balanced meals. Consultation with a registered
dietitian or nutrition counselor is an invaluable
tool for meal planning and dietary control for diabetics.
PHYSICAL ACTIVITY
Regular exercise is especially important for the
person with diabetes, as it helps control the amount
of sugar in the blood and helps burn excess calories
and fat to achieve optimal weight.
Before people with diabetes begin any exercise program,
they should obtain medical approval. Type 1 diabetics
must take special precautions before, during and
after participation in intense physical activity
or exercise.
SELF-TESTING
Blood glucose monitoring is done by checking the
glucose content of a small drop of blood. The testing
is done on a regular basis and will inform the person
with diabetes how well diet, medication, and exercise
are working together to control diabetes.
The results can be used to adjust meals, activity,
or medications to keep blood-sugar levels within
an appropriate range. It will provide valuable information
for the health care provider to suggest changes
to improve care and treatment. Testing will identify
high and low blood-sugar levels before serious problems
develop.
FOOT CARE
People with diabetes are prone to foot problems
because of complications related to the illness.
Diabetes causes damage to the blood vessels and
nerves, which can result in a decreased ability
to sense trauma or pressure on the foot. A foot
injury could go unnoticed until severe infection
develops.
Additionally, diabetes alters the bodies immune
system, decreasing the body's ability to fight infection.
Small infections can rapidly progress to death of
the skin and other tissues, necessitating amputation
of the affected limb.
To prevent injury to the feet, diabetics should
adopt a daily foot care routine.
TREATING LOW BLOOD SUGAR
Low blood sugar, known as hypoglycemia, can occur
in diabetics when they use too much insulin, exercise
too much, or have not eaten enough food. Hypoglycemia
can develop quickly in people with diabetes. Symptoms
of low blood sugar typically appear when the sugar
level falls below 70. Watch for weakness, shaking,
sweating, headache, nervousness, and hunger.
If these symptoms occur and you have a blood sugar
test kit available, do a blood sugar check. If the
level is low, the person with diabetes should eat
something with sugar: fruit juice, several teaspoons
of sugar, a cup of skim milk, or regular soda. If
you don't have a test kit handy, sugar should be
eaten anyway - it can't hurt. Symptoms should subside
within 15 minutes. If the symptoms don't subside,
more sugar should be eaten and the sugar level tested
again. AFTER the symptoms subside, more substantial
food can be eaten. Eat simple sugar FIRST to get
the situation under control. Even if you or your
child is hungry, "real" food should not be eaten
until the sugar level comes up - real food won't
produce enough sugar and takes too long to digest.
If you are a parent, relative, or friend of someone
experiencing these symptoms, monitor the person
closely. If symptoms become worse -- confusion,
seizures, or unconsciousness -- give the person
a shot of glucagon. If you don't have glucagon,
call 911 immediately.
You should have some glucagon stored for emergencies.
Make sure everyone in your home, as well as babysitters
and caregivers, knows how to use it. Periodically
remind everyone how to use it, and check the expiration
date.
Don't panic. Glucagon works very fast -- usually
within 15 minutes. While you are waiting for the
person to revive, keep him on his side to prevent
choking. If the person is not better in 15 minutes,
call 911.
TREATING HIGH KETONES
When there is not enough insulin to move glucose
into cells, glucose can build up in the blood. The
body then looks for other forms of energy and uses
fat as a fuel source. As fats are broken down, acids
called ketones build up in the blood and urine.
In high levels, ketones are poisonous to body tissue.
This condition is known as ketoacidosis.
You can check for ketones using a simple urine test
available at pharmacies. This test should be performed
every 4-6 hours anytime a person with diabetes is
registering blood sugar above 240; sick; unusually
thirsty or has a dry mouth; urinating frequently;
or vomited
The warning signs that ketoacidosis is getting serious
might include flushed face, dry skin and mouth,
nausea or vomiting, stomach pain, deep, rapid breathing,
or fruity breath odor.
If these symptoms occur, call the doctor or go to
the emergency room right away. If left untreated,
this condition will lead to coma and even death.
MONITORING
- Visit your physician and/or diabetes educator
at least 4 times a year.
- Have your glycosylated hemoglobin (HbA1c)
measured 2-4 times a year to evaluate your overall
glucose control.
- (Ask your doctor how often you should be tested.)
Have your cholesterol and triglyceride levels
and kidney
- function evaluated yearly.
- Visit your ophthalmologist (preferably one
that specializes in diabetic retinopathy) at
least once a year, more frequently if signs
of diabetic retinopathy develop.
- Every 6 months have a thorough dental cleaning
and examination. Inform your dentist and hygienist
that you have diabetes.
- Monitor your feet every day for early signs
of injury or infection. Make sure your health
care provider inspects your feet at each visit.
- Stay up-to-date with all of your vaccinations
(including pneumococcal), and get a flu shot
every year in the fall.
EDUCATION
You are the most important person in managing your
diabetes. Diabetes education is a crucial part of
the treatment plan. Diabetes education basically
involves learning how to live with your diabetes.
Knowledge of disease management is imperative to
avoid developing short-term complications such as
hypoglycemia and hyperglycemia and to delay or slow
the onset of long-term complications of the disease
such as diabetic retinopathy (eye disease) or nephropathy
(kidney disease).
You should be knowledgeable about the basic principles
of diabetes management. Basic "survival skills"
include:
- how to recognize and treat low blood sugar
(hypoglycemia)
- how to recognize and treat high blood sugar
(hyperglycemia)
- diabetes meal planning " how to administer
insulin
- how to monitor blood glucose and urine ketones
- how to adjust insulin and/or food intake during
exercise
- how to handle sick days
- where to buy diabetic supplies and how to
store them
Expectations (prognosis)
The outcome for people with diabetes varies. Recent
studies show that tight control of blood glucose
can prevent or delay the progression of eye disease,
kidney disease and nervous system disease that is
caused by diabetes. However, complications may occur
even when good diabetes control is achieved with
insulin and diet.
Complications
EMERGENCY COMPLICATIONS:
In a person with type 1 diabetes, the body will
use fat as a fuel if insulin is not present. The
by-products of fat metabolism are ketones. Ketones
build up in the blood and "spill" over into the
urine.
A condition called ketoacidosis develops when the
blood is made acidic by the ketones.
Hypoglycemia (low blood glucose) occurs when the
balance between insulin, food intake, and exercise
is disturbed. Symptoms of mild hypoglycemia include
hunger, nervousness, and fast heart rate. More serious
hypoglycemia can lead to confusion and even loss
of consciousness. Loss of consciousness due to low
blood sugar is called hypoglycemic coma.
LONG-TERM COMPLICATIONS:
People who have had diabetes for several years are
likely to develop long-term complications, which
can be minimized but not entirely eliminated by
proper diabetic management:
By age 55, about 35% of men and women with type
1 diabetes have died from a heart attack compared
to 8% of nondiabetic men and 4% of nondiabetic women.
People with type 1 diabetes are also at higher risk
to develop blockages in the major arteries of the
legs than nondiabetics. Lower the risk of vascular
disease by aggressively treating cholesterol and
blood pressure, exercising regularly, and avoiding
or quitting tobacco products.
Microvascular (small vessel) changes occur in capillaries
of every organ of the body. There is a thickening
of the wall of the small blood vessels. These changes
are responsible for many of the diabetes complications.
Changes in the small blood vessels of the retina
(also known as diabetic retinopathy) predispose
the diabetic to several eye disorders. After 15
years of diabetes, 80% of diabetics will have some
diabetic retinopathy. If bleeding and scarring has
developed, a retinal detachment may occur, causing
blindness. Vascular changes in the iris may cause
obstruction of the flow of ocular fluid and cause
glaucoma. Diabetics are also more likely than nondiabetics
to develop cataracts.
- DIABETIC NEPHROPATHY (kidney disease)
Kidney abnormalities may be noted early in the disease.
Poorly controlled diabetes may accelerate the development
of kidney failure. Urinary tract infections in diabetics
tend to be more severe and may result in kidney
damage.
Diabetics are more vulnerable to kidney damage from
high blood pressure than nondiabetics.
- DIABETIC NEUROPATHY(nerve damage)
People with diabetes may develop temporary or permanent
damage to nerve tissue. Diabetic neuropathy is more
likely to develop if blood glucose is poorly controlled.
Some diabetics will not develop neuropathy, while
others may develop this condition relatively early.
On average, symptoms such as numbness and tingling
occur 10 to 20 years after diabetes has been diagnosed.
The feet of people with diabetes are very susceptible
to infection and injury. Many diabetes-related hospital
admissions are for foot problems, and a significant
number of non-accident-related leg amputations are
performed on diabetics.
Several foot problems are common in people with
diabetes, including skin changes (loss of hair;
loss of ability to sweat; and dry, cracked skin),
arterial insufficiency (impaired blood supply to
feet), neuropathy, and specific foot deformities
(hallux valgus, bunion, hammertoe, and calluses).
- SKIN AND MUCUS MEMBRANE PROBLEMS
People with diabetes are more likely than nondiabetics
to develop infections. Hyperglycemia (high blood
sugar) predisposes diabetics to fungal infections
of the skin, nails, and female genital tract and
to urinary tract infection.
Calling your health care provider
Medical follow-up for a person newly diagnosed with
type 1 diabetes should probably occur weekly until
good control of blood glucose is achieved. The health
care provider will want to review results of home
glucose monitoring and urine testing, and a diary
of meals, snacks, and insulin injections. As the
disease becomes more stable, follow-up visits will
be less frequent. Periodic evaluation is very important
for the evaluation of long-term complications associated
with diabetes.
Call your health care provider or go to the emergency
room if symptoms of ketoacidosis are present:
- increased thirst and urination
- nausea
- deep and rapid breathing
- abdominal pain
- sweet-smelling breath
- loss of consciousness (This may occur in insulin
dependent diabetics when a dose of insulin is
missed, or if illness or infection is present.)
Go to the emergency room or call the local emergency
number (such as 911) if symptoms of severe hypoglycemia
or insulin reaction are present:
- trembling
- weakness
- drowsiness
- headache
- confusion
- dizziness
- double vision
- lack of coordination
- convulsions or unconsciousness
Early signs of hypoglycemia may be treated at home
by eating sugar or candy or injecting glucagon.
If the signs of hypoglycemia are not relieved by
the above action or if blood glucose levels remain
below 60 mg/dL go to the emergency room.
(from the National Institute of Health)
Type 2 Diabetes Mellitus
Alternative names
Noninsulin-dependent diabetes mellitus; Diabetes
- Type 2
Definition
Type 2 diabetes is a chronic, life-long disease
that results when the body's insulin does not work
effectively. Insulin is a hormone released by the
pancreas in response to increased levels of blood
sugar (glucose) in the blood.
Causes, incidence, and risk factors
Diabetes is caused by a problem in the way your
body makes or uses insulin. Insulin is necessary
for glucose to move from the blood to the inside
of the cells.
Unless glucose gets into cells, the body cannot
use it for energy. Excess glucose remains in the
blood, and is then removed by the kidneys. The symptoms
inlcude excessive thirst, frequent urination, hunger,
and fatigue.
There are several types of diabetes:
- Type 1 diabetes, which requires total insulin
replacement in order to live because the body
does not make adequate amounts
- Type 2 diabetes, which is related to insulin
resistance (lack of the ability of the body
to respond to insulin appropriately) and is
often accompanied by obesity and high cholesterol
Gestational diabetes, which occurs during pregnancy
Diabetes affects up to 6% of the population in the
U.S. Type 2 diabetes accounts for 90% of all cases.
A main component of type 2 diabetes is "insulin
resistance". This means that the insulin produced
by your pancreas cannot connect with fat and muscle
cells to let glucose inside and produce energy.
This causes hyperglycemia (high blood glucose).
To compensate, the pancreas produces more insulin.
The cells sense this flood of insulin and become
even more resistant, resulting in a vicious cycle
of high glucose levels and often high insulin levels.
Type 2 diabetes usually occurs gradually. Most people
with type 2 diabetes are overweight at the time
of diagnosis. However, the disease can also develop
in lean people, especially if elderly.
Genetics play a large role in type 2 diabetes and
family history is a risk factor. However, low activity
level, poor diet, and excess body weight (especially
around the waist) significantly increase your risk
for type 2 diabetes. Other risk factors include:
- Race/ethnicity; African-Americans, Hispanic-Americans,
and Native Americans all have high rates of
diabetes
- Age greater than 45 years
- Previously identified impaired glucose tolerance
by your doctor
- High blood pressure
- HDL cholesterol of less than 35 and/or triglyceride
- level of greater than 250
- History of gestational diabetes
Symptoms
Often, people with type 2 diabetes have no symptoms
at all. If you do have symptoms, they may include:
- increased thirst
- increased urination
- increased appetite
- fatigue
- blurred vision
- frequent and/or slow-healing infections (including
bladder,
- vaginal, skin)
- erectile dysfunction in men
Signs and tests
Type 2 diabetes is diagnosed with the following
blood tests:
- Fasting blood glucose level -- diabetes is
diagnosed if higher than 126 mg/dL on two occasions.
- Random (non-fasting) blood glucose level --
diabetes is suspected if higher than 200 mg/dL
and accompanied by the classic symptoms of increased
thirst, urination, and fatigue. (This test must
be confirmed with a fasting blood glucose test.)
- Oral glucose tolerance test -- diabetes is
diagnosed if glucose level is higher than 200
mg/dL after 2 hours.
Treatment
The first goals are to eliminate the symptoms and
stabilize your blood glucose levels. The ongoing
goals are to prevent long-term complications and
prolong your life. The primary treatment for type
2 diabetes is exercise and diet.
LEARN THESE SKILLS
You should learn basic diabetes management skills.
They will help prevent complications and the need
for medical care. These skills include:
- How to test and record your blood glucose
(see blood glucose monitoring).
- What to eat and when.
- How to take medications, if indicated.
- How to recognize and treat low and high blood
sugar.
- How to handle sick days.
- Where to buy diabetes supplies and how to
store them.
It may take several months to learn the basic skills.
Once your condition has stabilized, continue to
educate yourself about the disease process, how
to control and live with diabetes, and long-term
complications of the disease. Over time, stay current
on new research and treatment.
SELF-TESTING Blood sugar testing, or self-monitoring
of blood glucose, is done by checking the glucose
content of a small drop of blood. Regular testing
tells you how well diet, exercise, and medication
are working together to control diabetes.
The results of the test can be used to adjust meals,
activity, or medications to keep blood sugar levels
in an appropriate range. Testing provides valuable
information for the health care provider and identifies
high and low blood sugar levels before serious problems
develop.
When testing blood sugars yourself, a glucometer
is used. A glucometer is a small device that provides
an exact reading of blood glucose. A test strip
is used to collect a small drop of blood, obtained
by pricking the finger with a small, specially-designed
needle (called a lancet).
The strip is then placed in the meter. Results are
available within 30 to 45 seconds. A health care
provider or diabetes educator will help set up an
appropriate testing schedule for you. You will also
be taught how to respond to different ranges of
glucose values obtained when you self-test.
Tests are usually done before meals and at bedtime.
More frequent testing may be indicated during illness
or stress. Accurate record keeping of test results
will make them more useful for planning how to best
control your diabetes.
DIET AND WEIGHT CONTROL
Meal planning includes choosing healthy foods, eating
the right amount of food, and eating meals at the
right time. You should work closely with your health
care provider to learn how much fat, protein, and
carbohydrates you need in your diet. Your specific
meal plans need to be tailored to your food habits
and preferences. A registered dietitian can be helpful
in determining your specific, individual dietary
needs.
In type 2 diabetes, weight management and a well-balanced
diet are important. Some people with type 2 diabetes
can stop medications after intentional weight loss,
although the diabetes is still present. Consultation
with a registered dietitian is an invaluable planning
tool.
REGULAR PHYSICAL ACTIVITY
Regular exercise is important for everyone, but
especially if you have diabetes. Regular exercise
helps control the amount of glucose in the blood.
It also helps burn excess calories and fat to achieve
optimal weight.
Exercise improves overall health by improving blood
flow and blood pressure. It naturally decreases
insulin resistance even without weight loss. Exercise
also increases the body's energy level, lowers tension,
and improves your ability to handle stress. Everyone
should obtain medical approval before starting an
exercise program, but this is especially important
if you have diabetes.
The following should be considered:
- Choose an enjoyable physical activity that
is appropriate for the current fitness level.
- Exercise every day, and at the same time of
day, if possible.
- Monitor blood glucose levels by home testing
before and after exercise.
- Carry food that contains a fast-acting carbohydrate
in case blood glucose levels get too low during
or after exercise.
- Wear a diabetes identification bracelet and
carry change for a phone call in case of emergency.
- Drink extra fluids that do not contain sugar
before, during and after exercise.
- Changes in exercise intensity or duration
may require modification of your diet or medication
to keep blood glucose levels in an appropriate
range.
MEDICATION
When you cannot achieve normal or near-normal blood
glucose levels with diet and exercise, medication
is added to the treatment plan. Your doctor will
start you on oral (by mouth) medicines, such as:
- Oral sulfonylureas (like glimepiride, glyburide,
and tolazamide) trigger the pancreas to make
more insulin.
- Biguanides (Metformin) tell the liver to decrease
its production of glucose, which increases glucose
levels in the blood stream.
- Alpha-glucosidase inhibitors (such as acarbose)
decrease the absorption of carbohydrates from
the digestive tract, thereby lowering the after-meal
glucose levels.
- Thiazolidinediones (such as rosiglitazone)
help insulin work better at the cell site. In
essence, they increase the cell's sensitivity
(responsiveness) to insulin.
- Meglitinides (including repaglinide and nateglinide)
trigger the pancreas to make more insulin in
response to how much glucose is in the blood.
If you continue to have poor blood glucose control
despite lifestyle changes and using oral medicines,
your doctor will prescribe insulin. Insulin may
also be prescribed if you have had a bad reaction
to oral medicines. Insulin must be injected under
the skin using a syringe and cannot be taken by
mouth.
Insulin preparations differ in how fast they start
to work and how long they work. The health-care
professional will determine the appropriate type
of insulin to use and will counsel you on what time
of day to use it.
More than one type may be mixed together in an injection
to achieve the best control of blood glucose. The
injections are needed, in general, from one to four
times a day. You will be taught how to give yourself
injections by your doctor or a diabetes educator
referred by your doctor.
FOOT CARE
People with diabetes are prone to foot problems
because of complications caused by damage to blood
vessels and nerves and decreased ability to fight
infection. Blood flow to the feet may become compromised
and damage to the nerves may cause an injury to
the foot to go unnoticed until infection develops.
Death of skin and other tissue can occur. If left
untreated, amputation of the affected foot may ultimately
be necessary.
To prevent injury to the feet, diabetics should
adopt a daily routine of checking and caring for
the feet as follows:
- Check your feet every day, and report sores
or changes and signs of infection.
- Wash feet every day with lukewarm water and
mild soap, and dry them thoroughly.
- Soften dry skin with lotion or petroleum jelly.
- Protect feet with comfortable, well-fitting
shoes.
- Exercise daily to promote good circulation.
- See a podiatrist for foot problems, or to
have corns or calluses removed.
- Remove shoes and socks during a visit to
the health care provider to remind them to examine
your feet.
- Discontinue smoking because it worsens blood
flow to the feet.
CONTINUING CARE
A person with type 2 diabetes should have a visit
with a diabetes care provider every three months.
A thorough three-month evaluation includes:
- Glycosylated hemoglobin (HbA1c) is a weighted
three-month average of what your blood glucose
has been. This test measures how much glucose
has been sticking to the red blood cells. It
also indicates how much glucose has been sticking
to other cells. A high HbA1c is an indicator
of risk for long-term complications. Currently,
the ADA recommends an HbA1c of less than 7%
to protect oneself from complications. This
test should be done every three months.
- pressure check.
- Foot and skin examination.
- Ophthalmoscopy examination.
- Neurological examination.
The following evaluations should be done at least
annually:
- Random microalbumin (urine test for protein).
- BUN and serum creatinine.
- Serum cholesterol, HDL, and triglycerides.
- ECG.
- Dilated retinal exam.
Expectations (prognosis)
The risks of long-term complications from diabetes
can be reduced. Those with the best control of blood
glucose and blood pressure significantly reduce
their risk of death, stroke, heart failure, and
other complications. Reduction of HbA1c by even
one percentage point can decrease your risk for
complicatons by 25%.
Complications
- Emergency complications include diabetic coma.
- Long-term complications include:
- diabetic retinopathy (eye disease)
- diabetic nephropathy (kidney disease)
- diabetic neuropathy (nerve damage)
- peripheral vascular disease (damage to blood
vessels/circulation)
- high cholesterol, high blood pressure, atherosclerosis,
and coronary artery disease
Calling your health care provider
Call your health care provider immediately if you
have:
- trembling
- weakness
- drowsiness
- headache
- confusion
- dizziness
- double vision
- lack of coordination
These symptoms can rapidly progress to emergency
conditions (such as convulsions, unconsciousness,
or hypoglycemic coma).
Prevention
Everyone over 45 should have their blood glucose
checked at least every three years. Regular testing
of random blood glucose should begin at a younger
age and be performed more often if you are at particular
risk for diabetes. Maintain a healthy body weight
and keep an active lifestyle to help prevent the
onset of type 2 diabetes.
Diabetes and Exercise
Exercise can lower the blood sugar and improve the
body's ability to use glucose. With regular exercise,
the amount of insulin needed decreases.
- Exercise does not increase the production
of insulin but it can increase the sensitivity
of the insulin receptors improving the body's
ability to utilize insulin. This effect can
persist for several hours.
- Exercise decreases the risk of heart problems,
which is a major health concern for people with
diabetes.
|
|
|
|