Testosterone, Free (Direct) Hormone
Fasting Required: No

Specimen: Blood

Results: 5-7 Business Days

Description:
Measures the amount of testosterone not bound to any other chemicals in the blood and may be used to assist in the evaluation of testicular function when obesity, cirrhosis or thyroid disorders may alter testosterone binding proteins.
Both men and women can have health problems because of low or high levels of free testosterone. Women with high levels of free testosterone may have polycystic ovary syndrome (PCOS), a condition marked by infertility, lack of menstruation, acne, and excessive hair growth, especially on the face.
Men with low levels of free testosterone can lose their sex drive, suffer bone loss, or become infertile.

Methodology:
Calculation (CALC) • Immunochemiluminescence Assay (ICMA) • Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS) • Spectrophotometric

Clinical Significance:
Helpful in assessing testicular function in males and managing hirsutism, virilization in females.

Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.