health procedures






 

Question by  ZapBranigan (16)

What is the best time of day to do an accurate tsh blood test?

I want to get the most accurate reading I can.

 
+8

Answer by  mb (5482)

The best thing to do is get a fasting blood test first thing in the morning. All blood test are most accurate when you haven't have anything to eat or drink for at least 8 hours.

 
+6

Answer by  mammakat (11147)

It shouldn't make any difference what time of day you test, unless you are fasting or taking external sources of T3 like Cytomel, then you need to ask your doctor for the optimum time for testing which depends on the activity levels of the medicine in your body. Otherwise, stick to the same time of day you have chosen.

 
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