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What’s the best way to test for low testosterone?
- By Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing
Q. I’m worried that I might have very low testosterone levels. How do I get tested and are there certain steps that can ensure an accurate reading?
A. Doctors usually order a blood test to measure total testosterone. A total testosterone lab test measures both "free" (unbound) testosterone and the amount of hormone bound to blood proteins. Normal testosterone levels are between 300 to 1,000 nanograms per deciliter (ng/dL).
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