total psa prostatic antigenProstate health is critical to men's well being, especially as they age. One of the most important tests for assessing prostate health is the measurement of the prostate specific antigen (PSA). This blood marker is a key indicator in the early detection of prostate cancer, as well as in the monitoring of other prostate conditions, such as benign prostatic hyperplasia (BPH) and prostatitis. PSA is a protein produced by the prostate gland, whose main