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If you are only being tested for thyroid function, and your doctor has not asked you to do otherwise, you do not need to fast.
If you are undergoing a physical exam for your hyperthyroidism, it is allowed, although unwise to indulge in coffee before the exam, as caffeine can make your hyperthyroid symptoms seem much worse. This would potentially lead the physician to get an unclear impression of the impact of the dysfunction to your system. With an altered impression, it is possible you could end up over-treated for your condition.
Wiki User
∙ 11y ago
Wiki User
∙ 9y agoIt is not recommended to drink coffee before a physical exam. Coffee is a stimulant and can raise blood pressure and heart rate.
Wiki User
∙ 13y agoNo! You should not drink anything but water for at least four hours before a metabolic test. Anything with sugar or caffeine could skew the results of the test.
Wiki User
∙ 11y agoFT3,FT4 is responsible for your body's energy . I suspect if you're doing something that needs more energy, FT4 and consequently FT3 increases. But that should be very temporary.
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Can you drink coffee before a lipids test?
No
Can you drink coffee before a blood panel test?
no
Can you drink coffee before a psa test?
yes
Can you drink coffee before an ultra sound test?
yes.
Can you drink regular coffee before a CRP blood test?
no
Can you drink black coffee before a blood test that does not requires fasting?
yes
Can you drink water before a thyroid blood test if doctor just said to fast?
Yes. Drink water as you would normally.
Can you drink coffee before a cbc?
You should be able to drink coffee before a CBC (Complete Blood count) test, unless your doctor ordered additional blood tests and tells you to not drink after midnight (NPO=nothing by mouth).
Can you drink coffee with non diary creamer before blood test for cholesterol?
No you can't have anything. It is a fasting blood test.
Can you drink black coffee before a blood test is done?
if u want black blood
Can you drink coffee before a fasting blood test?
No. You can and should drink red bull before fasting labs. The diet red bull, of course. This is much better for you and will not affect the blood test.
Can you drink black decaf coffee before a blood test?
User responses: No. From what I have read caffeine does affect cholesterol levels and/or the way they can be interpreted when reading results of a cholesterol blood test. I would suggest that you be clean of any caffeine - three or more days ahead of time - to obtain a caffeine-free result.Advice seems to vary. Some say that black coffee (no sugar, no milk) is fine. Sources for that listed below.
