The Testosterone – Free test measures the level of free testosterone in the blood. Free testosterone refers to the portion of testosterone that is not bound to proteins (like SHBG or albumin) and is biologically active, playing a crucial role in various bodily functions.
Purpose of the Test:
•Evaluate male reproductive health: Assesses testosterone levels in cases of infertility, erectile dysfunction, or decreased libido.
•Diagnose hypogonadism: Detects low testosterone levels that may affect energy, muscle mass, and sexual function.
•Monitor testosterone therapy: Tracks testosterone levels in patients undergoing hormone replacement therapy.
•Assess hormonal imbalances in women: Detects elevated testosterone levels associated with conditions like polycystic ovary syndrome (PCOS), hirsutism, or virilization.
Key Notes:
•Low levels may indicate hypogonadism, pituitary dysfunction, or chronic illnesses.
•High levels may suggest androgen-secreting tumors, PCOS (in women), or anabolic steroid use.
•This test is often ordered alongside total testosterone and other hormones like LH and FSH for a comprehensive evaluation.
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