Lab test

Prostate-Specific Antigen (PSA) Total Test

This blood test measures total prostate-specific antigen (PSA), a protein produced by the prostate gland.

Typical price

From $49

Results

1-3 business days

Preparation

See preparation notes below

Sample

Blood draw or sample collection at a local center

This blood test measures total prostate-specific antigen (PSA), a protein produced by the prostate gland. PSA is used as a tumor marker that can be elevated in prostate cancer, but it also rises with benign prostate enlargement, infection, inflammation, and recent procedures. Because of this, PSA is generally not a stand-alone diagnosis and is interpreted with age, examination findings, and other testing. The test may be ordered for early detection discussions, to monitor a known prostate condition, or to follow up on urinary symptoms. Results are always reviewed by a healthcare provider in the full clinical context.

• Prostate-Specific Antigen (PSA), Total A protein made by the prostate that serves as a prostate-related tumor marker.

• Men discussing prostate screening with a healthcare provider
• Individuals with urinary symptoms such as weak flow or frequency
• Men being monitored for a known prostate condition
• Those following up after an abnormal prostate examination

• Inform the laboratory of recent prostate procedures, since these can raise PSA
• Avoid strenuous cycling or ejaculation shortly before the draw unless told otherwise
• Report medications for prostate conditions to your provider

PSA is compared against reference ranges that may be adjusted for age. A higher value can raise concern for prostate cancer, but benign enlargement, infection, and recent procedures can also elevate PSA. A lower value does not rule out disease, and the rate of change over time can be as informative as a single number. A healthcare provider should interpret the result with your history and whether further evaluation is recommended.

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