The Biotime fPSA Rapid Quantitative Test measures the concentration of free Prostate-Specific Antigen (fPSA) in human serum. PSA is a protein secreted by cells of the prostate gland and is found in the bloodstream in both bound and unbound (free) forms. The ratio of free to total PSA can aid in distinguishing between benign prostatic hyperplasia (BPH) and prostate cancer, improving diagnostic accuracy.

This test provides a quantitative measurement of unbound PSA, assisting clinicians in evaluating prostate function, guiding cancer risk assessment, and monitoring post-treatment recovery. Designed for use with Biotime fluorescence analyzers, it offers rapid, reliable, and reproducible results, supporting decision-making in urology and oncology departments.