Testosterone free and total
Testosterone is the main sex hormone in men and is responsible for male physical characteristics. Typically testosterone is considered to be a male sex hormone, but it is present in the blood of females as well. This testosterone blood test measures the total amount of testosterone that is bound to proteins in the blood as well as testosterone that is not bound (free testosterone). Chemically, testosterone is 17-beta-hydroxy-4-androstene-3-one.
To detect an abnormal testosterone level in males and females; in males, to help diagnose the cause of erectile dysfunction or the inability of your partner to get pregnant (infertility); in females, to help diagnose the cause of masculine physical features (virilization), infertility, or polycystic ovary syndrome (PCOS); in children, to help determine the cause of genitals that are not clearly male or female (ambiguous genitalia) or delayed or early puberty.
Turnaround time for the Routine Urinalysis test is typically 1 business day.
Fasting is not required for this test.
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