Question

In preparation for a blood test, the lab slip says you have to be npo for 8 hours prior to test, what do you have to do?

Answer 1

Answer:

Go to the lab prior to eating anything (preferably) or 8 hours after eating anything.

Explanation:

NPO stands for Nil Per Os which is Latin for Nothing by mouth. It is especially necessary if you are going in for a blood test since not eating anything for upto 8 or 12 hours lets you blood glucose level come back to normal. The results may help your doctor diagnose or rule out diabetes without any error.