So, I had my first cancer screen test. One was PSA, and the other was CEA. PSA (a Prostate-specific antigen) is made by the prostate and is usually found in semen, with a small amount also detected in the blood. CEA (carcinoembryonic antigen) is a protein usually found in high levels of colorectal cancer patients. Most men without prostate cancer have PSA levels under four ng/mL. CEA is generally one or lower.
My PSA was .65 (should be less than <4 ng/mL) and the CEA was 1.0 (should be less than <2.5 ng/mL) “We don’t believe the problem you are experiencing (the improper manufacturing of red blood cells) is likely to be either colorectal cancer or prostate cancer,” the doctor informed. “So, something else is causing your problem. That problem might be multiple myeloma, but we’ll need to perform some further testing.”