Get Virtual Care
For Businesses
About Us
A member asked:
Could you tell me what happens if you have diabetes and eat before a blood test?
4 doctors weighed in across 2 answers
Post-prandial result: Although most blood tests are supposed to be done in the fasting state, the after-meal (or post-prandial) glucose result can be very useful in certain settings. If you have diabetes and do a blood test after eating, the result can help determine whether you are eating too much carbs or need medication adjustments. American diabetes assn recommends a post-prandial glucose target less than 180 mg/dl.
Answered 1/9/2015
6.1k views
Depends: Depends what test you want to do. If you are checking your sugar, it is likely go up. If you are checking you triglycerides, it may go up as well. Other tests should not have any impact after eating.
Answered 12/9/2013
5.5k views
Related Questions
A member asked:
I forgot to tell my doctor about an HIV test, but he did a blood test on diabetes, thyroid, potassium etc. If i was infected would it come out?
3 doctors weighed in across 2 answers
A member asked:
I had a blood test a year ago. Everything was fine. I am worried could I have developed diabetes by now?
A doctor has provided 1 answer
A member asked:
A week before, i conducted a fasting blood sugar test which was 100mg/dl, could I have diabetes?
A doctor has provided 1 answer
People also searched for:
Please tell me how long it takes for to get blood test results for diabetes?
Can a fasting blood glucose test alone tell you that you have diabetes?
I had my fasted blood sugar test two days ago and it was 82. I have eaten a lot of sugar in the last two days since my blood test results. Is it possible for me to develop diabetes in those two days even if I do not eat much sugar from now on?
I had a blood test two days ago where it said my blood sugar was 82. I have ate a lot of sugar in the last two days. Is it possible to develop type 2 diabetes in that time span even if I eat healthy from now on?
Fit 35yr, generally eat low carb/sugar, but not keto. Fasting blood glucose has been slightly above 100 on 2 consecutive tests (102 and 105) but A1c is only 4.4 (4.2 lower limit of reference range). Diabetes possible, or ruled out by A1c levels?
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
Download HealthTap
Video visit and message your doctor
