Prostate Specific Antigen (PSA)
Prostate specific antigen (PSA) is produced exclusively by cells of the prostate gland. Used in conjunction with the digital rectal examination, PSA is a useful screening test for benign prostate hyperplasia (BPH) and prostate cancer development. Fasting is not required for this test. Take all medications as prescribed.
Special Note: Ejaculation within 48 hours preceding the blood draw may elevate the PSA in some men.