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11234298 tn?1417676547

glucose test

How many hours do i have to fast for the glucose test. If i was to go in the morning to take the test. How long do i fast?
11 Responses
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Avatar universal
You need to ask your Dr!  Every lab does it different so this could all be wrong info.
Helpful - 0
Avatar universal
You can drink water up to the test time. But only water.  You cannot drink water during the test. Water hydrates your veins and does not effect your sugar. Fast from food and other beverages at least 8 hrs prior to the test.  I failed my one hr and they want me to do the three hr again now that I'm 28 weeks. I told my Dr that I refuse and if she thinks I have diabetes then move forward with her recommendations.  I live 1 hr from the Dr office. They usually make me wait one hr to be seen. Then they do the 3 hr test and poke me over ten times because they cannot find a vein. Then another 1 hr drive home. Too long for me. I get sickness a lot when I do not eat.  
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Avatar universal
Depends on the OBGYN.my first I couldn't have anything to eat or drink after midnight and my appointment to start the test was at 11AM. This dr I am seeing now said I do not have to fast at all just no sugary foods and I can drink anything until I start the test.
Helpful - 0
9440890 tn?1415878121
It depends.  I didn't have to fast for mine.  Check with the doctor
Helpful - 0
10444971 tn?1411572350
I was told I didn't have to fast and that I can eat a light meal before I do it.
Helpful - 0
Avatar universal
I was told not to eat after midnight the night before.
Helpful - 0
Avatar universal
I had to fast from 12 midnight until that nx morning after the test and I had to do a 3hr test it wasn't fun but every Dr is different so u may want ask your Dr.
Helpful - 0
10327764 tn?1414610928
My 1 hour they said I could eat (but I suggest not doing so) and I was borderline so they made me do the 3 hour and that was a 12 hour fast. Good luck!
Helpful - 0
Avatar universal
My doctor only had me fast for 2 hrs prior, but it varies from doctor to doctor. I would check with the doctor to be sure.
Helpful - 0
Avatar universal
From twelve o clock the night before
Helpful - 0
Avatar universal
For my glucose test it was 2 hours of fasting.  Some doctors require 8 hours.  I would check with your doctor to find out what their policies are.
Helpful - 0

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