These tests are used to measure testosterone levels in men, which are important for male sexual function, muscle mass, and bone density.

• Testosterone - Measures the total amount of testosterone in your blood
• Sex Hormone Binding Globulin (SHBG) - A protein that binds to testosterone, reducing its availability. A high SHBG level can lower free testosterone levels
• Free Androgen Index (FAI) - A calculation that estimates the amount of free testosterone in your blood, which is the biologically active form of testosterone.
• Free Testosterone - Measures the amount of testosterone that is not bound to SHBG.
• Albumin - A protein that can also bind to testosterone. A low albumin level can increase free testosterone levels.