United States Embassy Pristina Security Message for U.S. Citizens: Heightened Caution During Religio. Senator John McCainâs Remarks to the Assembly of Kosovo. Thank you, Mister Speaker, Mister Prime Minister, and dear friends for that kind reception and for the honor of addressing this Assembly.
If you drink black coffee, with no additives, you can still have fasting labs done. However, coffee will increase your blood pressure and affect some tests .... especially a CRP. Your paying for these tests. I would recommend no coffee 10-12 hours prior if your not sure. The best method is to call the laboratory.
While still fasting they were then given two 125-milligram capsules of caffeine or a placebo. A cup of coffee contains from 80 milligrams to 175 milligrams of caffeine. A second set of blood tests were then analyzed an hour after the taking the pills.