Prostate-specific antigen tests measure a protein made by the prostate that rises with enlargement, inflammation and cancer. Total PSA is the standard screen, the free-to-total ratio helps interpret a borderline result, and ultrasensitive assays are used to follow very low values after treatment. Men order these to establish a baseline in their forties, to track a rising trend year over year, or because a family history moves screening earlier. A PSA result is a conversation starter with a clinician, never a diagnosis on its own.
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Evaluates prostate health; percent free PSA can improve specificity when total PSA is elevated.
Measures prostate-specific antigen (PSA) levels to screen for prostate cancer and monitor treatment. Elevated levels may indicate prostate cancer, benign…
Automatically measures free PSA when total PSA is elevated, calculating the free-to-total PSA ratio to improve prostate cancer detection specificity and reduce…
Measures total prostate-specific antigen (PSA) levels to screen for prostate cancer and monitor treatment. Elevated levels may indicate prostate cancer, benign…
