The Testosterone Serum Test measures the levels of testosterone in the bloodstream, which is the primary male sex hormone but is also present in females in smaller amounts. Testosterone plays crucial roles in various bodily functions, including the development of male reproductive tissues, maintaining muscle mass and bone density, and regulating sex drive.
This test is typically ordered if symptoms of low testosterone (hypogonadism) are present, such as decreased libido, erectile dysfunction, fatigue, decreased muscle mass, or mood changes. It can also be used to evaluate conditions like infertility, delayed or precocious puberty, and certain types of cancers like prostate cancer.
To prepare for the test, it's generally advised to avoid strenuous exercise and certain medications that may affect testosterone levels for a period determined by your healthcare provider. The test involves a simple blood draw, usually from a vein in the arm, and results are typically available within a few days.
Interpretation of the results depends on various factors, including age, sex, and individual health status. High or low levels of testosterone may indicate different underlying conditions, and further testing or consultation with a healthcare provider may be necessary for proper diagnosis and management.