I wish your doctor would tell you.... When you are having blood work, I wish your doctor would tell you:
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Unless he/she specifically states otherwise,
1. If you are having a lipid panel(cholesterol test), you need to fast for at least 8 hours. 10-12 hours is better.
2. If you are having a fasting glucose test, you must fast for 10-12 hours.
Best rule of thumb, don't eat anything for 12 hours. If you are coming in at 8am, stop eating at 8pm the night before.
Fasting means NO FOOD. This means NOTHING but water. No coffee, no tea, no soda (even if it's diet). Don't eat something "low fat" or "just a piece of apple" and decide that it won't have an effect on your tests. Anything you eat can and will have an effect on your results. If you decide you "just want to take the test anyway" even though you aren't fasting, either buck up and enjoy your Lipitor or be prepared for your doctor to want you to do the test again.
3. Odds are s/he's going to ask you to pee. Be ready.
So many people drive all the way here, only to end up having to come back because the doctor didn't explain this to them.