Web: | mayocliniclabs.com |
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Email: | mcl@mayo.edu |
Telephone: | 800-533-1710 |
International: | +1 855-379-3115 |
Values are valid only on day of printing. |
Alternative, second-level test for suspected increases or decreases in physiologically active testosterone:
-Assessment of androgen status in cases with suspected or known sex hormone-binding globulin-binding abnormalities
-Assessment of functional circulating testosterone in early pubertal boys and older men
-Assessment of functional circulating testosterone in women with symptoms or signs of hyperandrogenism, but normal total testosterone levels
-Monitoring of testosterone therapy or antiandrogen therapy in older men and in females
Test ID | Reporting Name | Available Separately | Always Performed |
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FRTST | Testosterone, Free, S | No | Yes |
TTST | Testosterone, Total, S | Yes | Yes |
FRTST: Equilibrium Dialysis
TTST: Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)