Fasting and Blood Test question

[mcs328]

I took a blood test and I was told to fast 4 hours before. 5 hours before I ate a turkey and cheese sandwich and water. After I took the blood test I hear the staff tell other people either the results take 10-12 hours or you should fast for that time. You think it impacts the blood test significantly that I need to take it again?

[oblongmelon]

You should always fast for at least 8 hours prior to blood work. Usually they tell you-no food after midnight if you're going to have your blood work drawn in the morning (8am-ish)..you should probably be ok though.

[renovation]

if the dr only want you to fast for 4 hours before. that should be fine test are sometimes order in diffrent ways. for you maybe your test was just a normal safety test for sugar. as the other person may of been testing for board line.

[Markel]

You should always fast for at least 8 hours prior to blood work. Usually they tell you-no food after midnight if you're going to have your blood work drawn in the morning (8am-ish).

That's the way I always try to schedule my blood work - I just delay my breakfast until after the test.

[uncledaddy]

if the dr only want you to fast for 4 hours before. that should be fine test are sometimes order in diffrent ways. for you maybe your test was just a normal safety test for sugar. as the other person may of been testing for board line.

Yes, it depends on what the Dr. is testing for. If for liver functioning for prescription of a medication, no fasting at all, however if for cholesterol levels and i also believe glucose levels or overall, 8-10 hours. Basically what you ingest affects test.

[utcpal]

8 hours atleast..

[cruelpupet]

If its just a general blood workup, dont worry, itll only effect 2 tests

[Houdini]

You should always fast for at least 8 hours prior to blood work. Usually they tell you-no food after midnight if you're going to have your blood work drawn in the morning (8am-ish)..you should probably be ok though.

Usual standard of care.

H