Can I Drink Coffee Before A Fasting Blood Test

Is it really big deal if i have cream in coffee 7 hrs before fasting blood work.

Can i drink coffee before a fasting blood test. Although some doctors may allow you to drink a small cup of unsweetened coffee prior to a cholesterol blood test is advisable to avoid it while fasting for the test since as little as it will the result does affect the test result. For some tests even the stimulation of digestion enzymes interferes with test results. Getting ready for a blood test may involve abstaining from coffee and other breakfast favorites if your doctor tells you to fast.

Glucose and cholesterol tests are examples of blood tests that require fasting. McKnight also mentioned the food or drinks you consume the day or night before a blood test does not impact your test results unlike what you eat or drink the morning of your test. This means no coffee or tea beforehand but taking your vitamins or medications is okay.

Well it may or may not mess with the results as you say. Can I drink water before a fasting blood test. And youre told to fast for 8 hours only water is okay after midnight.

Black coffee tea and other caffeinated beverages are diuretics which can have a dehydrating effect and cause test results to be inaccurate. Drinking coffee before blood cholesterol test should also be avoided. When you eat and drink normally those foods and beverages are absorbed into your bloodstream.

If your health care provider has told you to fast before a blood test it means you should not eat or drink anything except water for several hours before your test. Even if you drink it black coffee can interfere with blood test results. Thats because it contains caffeine and soluble plant matter which might skew your test results.

Your doctor will let you know if and when you should be fasting or will refer you to the testing laboratory for explicit instructions. However most doctors state that it is okay to drink black coffee before a glucose test. No donot drink coffee even if it is black.