Clinical Utility: Testosterone, Dihydrotestosterone and estrogen are bound to SHBG. SHBG concentrations are increased with birth control pills and pregnancy, and male hypogonadism. Decreased levels are seen in obese postmenopausal women, and in women with diffuse hair loss.
Serum (1 mL)
Ambient 4 Hours
Refrigerated 6 Days
Frozen 1 Month
Lithium heparin plasma (1 mL)
Ambient 4 Hours
Refrigerated 6 Days
Frozen 1 Month
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