is the psa test urine or blood
Urology News. Prostate Specific Antigen (PSA) Screening. More than 200,000 men are diagnosed and more than 30,000 men die each year from prostate cancer, making it the most common cancer in men in the U.S. Prostate Specific Antigen (PSA) is a blood test that has been used for more than 20 years to screen for prostate cancer.