What is a Diabetes Blood Test?
A diabetes blood test
is a simple
procedure where a blood sample is taken, and the glucose in the blood measured
to determine whether
or not you have diabetes
. Although there are
of tests available
, the fasting
test is the one most commonly used.
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For this test, you'll be asked not to eat for a minimum of 8 hours prior
to the test. For this reason, many people prefer to do it first thing in the
morning after they've fasted all night while sleeping. Fasting up to 12 hours
People with diabetes have high blood glucose levels and may show signs of
(note: diabetes is not the only reason for high blood glucose levels, but it is one of the most common).
- Normal fasting blood glucose in a person without diabetes is between
70 mg/dl to 100 mg/dl (or 3.9 to 5.5 mmol/L).
- The pre-diabetic range is from 100 to 125 mg/dL (5.6 to 6.9 mmol/L).
- A blood glucose level of 126 mg/dL (7.0 mmol/L) indicates diabetes, if the results
are consistent on at least two tests on different occasions.
If you have been showing signs of diabetes,
you should discuss them with your doctor as soon as possible. A diabetes blood test
can end the uncertainty. If the test results suggest that you have the disease,
your doctor will repeat the test at a different time to confirm that you have
diabetes. Another test called the A1C test may also be recommended by your doctor.
This test measures the average blood sugar levels over a 3-month period. This test,
as well as others, may also be done to determine whether you have Type 1
or Type 2 diabetes.
The information on this website is based on our own research and personal experience,
and is not a substitute for medical advice. Questions about your health and individual
situation should be directed to your doctor.