Test Today for $1 • Pay Balance After Results
Learn more
8 Items
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 enlargement, prostatitis and prostate cancer development.
NOTE: This test can only be purchased by men with suspect PSA over 4 mg/dL. Free PSA will not be provided for PSA under 4 ng/mL. PSA circulates through the body in two ways; bound to other proteins or by itself. Unbound PSA is called free PSA. A free-PSA test will measure the percentage of unbound PSA while a PSA test is used to measure the total of free and bound PSA in the blood. The free PSA is a defective variant of normal PSA that can no longer bind to other proteins and so circulates in the blood in the free form. Although the reason why this is the case is poorly understood - patients with prostate cancer may have lower free PSA levels than those with a benign prostate condition.
To claim, share what your primary goal is:
Sign up to get your discount code
with texts to activate your 20% off
By proceeding, you agree to receive marketing texts. Reply STOP to cancel. Msg & data rates may apply. View Terms.
Check your texts to verify your number. Once verified, start adding tests to cart to use your 20% off!
Enjoy your 20% discount on your next lab test
Claim 20% Off