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A member asked:
Can a fasting blood glucose test alone tell you that you have diabetes?
8 doctors weighed in across 2 answers
Needs confirmation: A single fasting blood sugar over 125 needs confirmatory tests to diagnose diabetes. this can be a second fasting blood sugar over 125, or a Hemoglobin A1c test over 6.5%. However any sugar over 300, or any sugar over 200 associated with vision change, excessive thirst or urination, or weight loss while eating more than usual is diagnostic for diabetes without a need for confirmatory testing.
Answered 7/4/2014
3.9k views
Yes, absolutely: Hi. Yes, a fasting serum glucose is easily diagnostic of diabetes. There are 4 means of diagnosing diabetes: fasting serum glucose, random serum glucose, 2-hr glucose tolerance test, and A1c. Fasting glucose is an easy test, and if positive, should be repeated for confirmation. Eat healthily and exercise regularly. Keep your diabetes, blood pressure, and lipids well controlled. DON'T SMOKE!
Answered 11/16/2014
3.6k views
Related Questions
A member asked:
How accurate is the fasting glucose blood test? Mine showed 117. Dr said may be pre-diabetes but test not accurate. Do I need A1C to confirm? I did A1C in June and it was normal, 5.3.
A doctor has provided 1 answer
A member asked:
Fasting glucose=91 & 89 on 2 diff blood test, 2nd time tested insulin 3 hemoglobin A1c 5.4 I am constantly craving sugar, often become shaky & lightheaded, i'm 123 lbs 5'9" am i at risk for diabetes?
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A member asked:
What to do if I have a non fasting blood glucose reading of 110. Do what to do if I have pre diabetes?
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Fasting blood glucose on wake up in the bed 92, 15 minutes later still in the bed 80.what is happening? Am i heading towards diabetes?
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