Individual test · Labcorp 140103

Testosterone, Free, Direct With Total Testosterone

This test measures the total amount of testosterone in your blood as well as the "free" testosterone that is active and not attached to proteins. It helps show whether your body has the right balance of active hormone, which is useful for investigating symptoms like excess hair growth in women or signs of low testosterone in men. Doctors often use this specific combination to rule out hormonal issues when other conditions, such as thyroid disorders or obesity, might be affecting how your blood carries testosterone. However, this test alone cannot diagnose the specific underlying cause of a hormone imbalance without additional medical evaluation.