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.
Fasting means that, from the night before the test, you must not eat anything and must. drink only water. Substances in tea, coffee or cola can affect some blood results, so even black coffee and sugar-. free (diet) drinks must be avoided. Likewise, chewing gum or smoking must be avoided on the. morning of the test. Fasting glucose Please fast for at least 8 hours. Oral glucose tolerance test Please fast for at least 8 hours. Note: this test takes a minimum of 2 hours.