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A member asked:
Why is my free testosterone level low but the the total is normal?
9 doctors weighed in across 2 answers
Confusing area: "normal" values for free and total testosterone are all over the map. Depending on the lab director, t nrml ranges from 175 to 1100.! go figure. It drives patients and doctors crazy when trying to make sense of "low t". The fda considers a t less than 300 with symptoms as treatable. Free t assays are variable from lab to lab wheras total t is pretty standard. You should always repeat abnormals.
Answered 5/15/2015
6.1k views
Free T hard to do: Generally free testosterone is quite a difficult test to do accurately in the labs. Clinical judgement, your clinical presentation, and two separate low testosterone values are necessary to really clarify your diagnosis.
Answered 4/7/2017
6.1k views
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