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Fasting blood test - how many hours?

(4 Posts)
Biscuitsneeded Wed 12-Jun-13 20:29:51

I am having a 'fasting' blood test tomorrow at 9.40am. It's an annual thing because a couple of years ago I was in a medical study and they happened to discover that I have impaired glucose tolerance. So this is just a check-up to make sure I haven't developed diabetes. But I can't remember how many hours I have to have fasted for. I ate my dinner at 7. Do you think if I now have nothing but water from now until the test it will be long enough?

justabigdisco Wed 12-Jun-13 20:39:20

12 hours is enough.

PipkinsPal Wed 12-Jun-13 21:03:36

12 hours, no food or drink and only plain water.

Lonecatwithkitten Wed 12-Jun-13 22:56:16

If you are having triglycerides done it needs to be 18 hours.

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