Individual test · Labcorp 081786

Testosterone, Free, Equilibrium Ultrafiltration With Total Testosterone

This test measures the total amount of testosterone in your blood as well as the free testosterone that is not attached to proteins and is active in the body. It is helpful when conditions like obesity or thyroid disorders change how proteins bind to hormones, which can make standard tests less accurate. This measurement helps doctors evaluate symptoms such as excess hair growth in women or low testicular function in men. While it identifies abnormal hormone levels, it cannot diagnose the specific underlying cause of the imbalance on its own.