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Tests for Blood Sugar - Frequently Asked Questions

Medically Reviewed by Dr. Smitha S. Dutt, PhD on Oct 13, 2017


Frequently Asked Questions

1. Which doctor should I consult to test my glucose levels?

You can go to a Diabetologist or General Physician to test your blood glucose levels.

2. Who does a blood glucose test?

A blood glucose test is done in a laboratory. It may also be done with a small instrument called a glucometer either in the doctor's clinic or at home.


3. Why is the HbA1C test more relevant than the fasting plasma glucose test in determining the risk for diabetes complications?

Most of the diabetes complications occur when the blood sugar level is raised over a prolonged period of time. The HbA1C test indicates the blood sugar levels over the past 3 months, whereas blood tests like the fasting plasma glucose test indicate blood glucose levels at a single point in time.

4. What happens if one test indicates that diabetes is present while another type of test does not show diabetes?

Under such circumstances, it is better to repeat the test that shows an abnormal value, preferably on another day.

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