PSA Testing (Prostate Specific Antigen)
Fasting Required: No
Results: 1-2 Business Days
Description: The prostate specific antigen (PSA), is a protein made only in the prostate gland. PSA is produced by normal, abnormal and cancerous prostatic tissue. The PSA blood test is an accurate measure of this amount. The theory is that cancer causes more of the protein to be made and leaked into the blood than normal prostate tissue, so PSA is now used for assisting in the diagnosis and monitoring of prostatic carcinoma.