A member asked:

I had my blood drawn about 2 hours ago for diabetes test. i felt faint. why?

A doctor has provided 1 answer

Vasovagal attack: Some patients faint or feel faint, due to vasovagal attack and it is not harmful and you have to tell the phlebotomist that it can happen again and she will observe you and be carefull.

Answered 8/19/2012

5.7k views

Thank

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