Preferred amount: 1.0 mL Serum
Minimum amount: 0.5 mL Serum
Enzyme-linked immunosorbent assay (ELISA)
24hrs 2-8° C
Centrifuge required?: Yes
To determine abnormal testosterone level in males and females; in males, an abnormal level may help to explain difficulty getting an erection (erectile dysfunction), inability of your partner to get pregnant (infertility), or premature or delayed puberty.