FREE PSA

The free prostate-specific antigen (free PSA) test measures the level of free PSA, a protein produced by the prostate gland, in the blood. This test is used alongside the total PSA test to differentiate between benign prostate conditions and prostate cancer. Elevated free PSA levels relative to total PSA levels suggest a lower risk of prostate cancer, while lower free PSA levels indicate a higher risk. The free PSA test is valuable for guiding prostate cancer screening, assessing the need for further diagnostic procedures such as biopsy, and monitoring patients with known prostate conditions.