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[IP] normal A1C level



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 <http://www.mayoclinic.org/about-this-site/welcome> By Mayo Clinic Staff

For someone who doesn't have diabetes, a normal A1C level can range from 4.5
to 6 percent. Someone who's had uncontrolled diabetes for a long time might
have an A1C level above 8 percent.

When the A1C test is used to diagnose diabetes, an A1C level of 6.5 percent
or higher on two separate tests indicates you have diabetes. A result
between 5.7 and 6.4 percent is considered prediabetes, which indicates a
high risk of developing diabetes.

For most people who have previously diagnosed diabetes, an A1C level of 7
percent or less is a common treatment target. Higher targets may be chosen
in some individuals. If your A1C level is above your target, your doctor may
recommend a change in your diabetes treatment plan. Remember, the higher
your A1C level, the higher your risk of diabetes complications.

Here's how A1C level corresponds to average blood sugar level, in milligrams
per deciliter (mg/dL) and millimoles per liter (mmol/L):


A1C level

Estimated average blood sugar level


5 percent

97 mg/dL (5.4 mmol/L)


6 percent

126 mg/dL (7 mmol/L)


7 percent

154 mg/dL (8.5 mmol/L)


8 percent

183 mg/dL (10.2 mmol/L)


9 percent

212 mg/dL (11.8 mmol/L)


10 percent

240 mg/dL (13.3 mmol/L)


11 percent

269 mg/dL (14.9 mmol/L)


12 percent

298 mg/dL (16.5 mmol/L)


13 percent

326 mg/dL (18.1 mmol/L)


14 percent

355 mg/dL (19.7 mmol/L)

It's important to note that the effectiveness of A1C tests may be limited in
certain cases. For example:

.         If you experience heavy or chronic bleeding, your hemoglobin
stores may be depleted. This may make your A1C test results falsely low.

.         If you don't have enough iron in your bloodstream, your A1C test
results may be falsely high.

.         Most people have only one type of hemoglobin, called hemoglobin A.
If you have an uncommon form of hemoglobin (known as a hemoglobin variant),
your A1C test result may be falsely high or falsely low. Hemoglobin variants
are most often found in blacks and people of Mediterranean or Southeast
Asian heritage. Hemoglobin variants can be confirmed with lab tests. If
you're diagnosed with a hemoglobin variant, your A1C tests may need to be
done at a specialized lab for the most accurate results.

.         If you have had a recent blood transfusion or have other forms of
hemolytic anemia, this test would not be useful, as results may be falsely
low.

Also keep in mind that the normal range for A1C results may vary somewhat
among labs. If you consult a new doctor or use a different lab, it's
important to consider this possible variation when interpreting your A1C
test results.

 

 

John S Wilkinson

Rome, NY
.
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