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A 33-year-old member asked:

is having high fasting blood sugar levels but low hba1c good or bad?

1 doctor answer1 doctor weighed in
Dr. Rakesh Lattupalli
Nephrology and Dialysis 23 years experience
Bad: High fasting blood sugars is bad and usually associated with high hba1c levels. But very low levels may be harmful (say less than 6).

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Similar questions

Pakistan
A 30-year-old male asked:

Hi....My fasting blood sugar is 5.54mmol/l.. I have also done hba1c test and the result is 5.0%. I need your kind suggestions?

2 doctor answers4 doctors weighed in
Dr. Vernon Barton
General Practice 52 years experience
See below: Hba1c is the averaging of the blood sugar 24/7 for the last 90 days. Yours of 5.0 is borderline elevated by earlier criteria. Your FBS is also on the high side of normal. Weight control, regular aerobic exercise 3 times/week+, avoiding a diet high in fats and simple sugars will slow/stop progression. Aim for ideal body weight.
Houston, TX
A 58-year-old male asked:

M58, my fasting blood sugar and A1c don't match, for example fasting is 150 and A1c is 5.7 why is it so? Both done at one month interval.

2 doctor answers2 doctors weighed in
Dr. Dan Fisher
Internal Medicine 27 years experience
Looks good.: A1c integrates blood sugar values over the last 60 days whereas the fbg is just a simple point in time. The discordance suggests that your blood glucose is well controlled over the "rest" of the day.
OM
A 17-year-old female asked about a 57-year-old male:

Hba1c test is within range but fasting blood sugar is 7.2. Can u get a true answer when checked after 12 hrs of eating?

1 doctor answer3 doctors weighed in
Dr. Thomas Knecht
A Verified Doctor answered
A US doctor answered Learn more
Diabetes: Hi. Of the 4 means to diagnose diabetes, A1c and non-fasting (random) glucose are the least sensitive; glucose tolerance test and fasting glucose are the most sensitive. Your fasting serum glucose of 7.2 is frankly diagnostic of diabetes, and at the very least, impaired glucose tolerance. It should be repeated for confirmation. Fasting should only require 8 hours of not eating. Healthy lifestyle!
OM
A 17-year-old female asked about a 58-year-old male:

Hba1c level is normal but still fasting blood sugar level is 7.2 ! What does this mean?

1 doctor answer2 doctors weighed in
Dr. Katharine Cox
Pediatric Emergency Medicine 45 years experience
Random result: Your HbgA1C result reflects 3 months of blood sugars and a normal value is awesome. This makes the random fasting blood sugar of 7.2 less worrisome. So overall your glucose control is excellent.
Pakistan
A 29-year-old female asked:

My fasting blood sugar ranges from 90-100, my hba1c is 5.6, plz comment.

1 doctor answer1 doctor weighed in
Dr. Richard Bensinger
Ophthalmology 52 years experience
Normal values: These values are in the normal range. Keep up whatever you are doing with diet and exercise.

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Last updated Jul 3, 2013

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