# Prostate-specific Antigen (PSA), Ultrasensitive

> This test measures very small amounts of prostate-specific antigen (PSA), a protein produced by the prostate gland. It is frequently used to monitor men after prostate cancer treatment to determine if PSA levels are rising, which may indicate the cancer has returned. This helps doctors track the success of therapy and detect recurrence at early stages. However, this test cannot diagnose the specific location of a tumor or determine the cause of an elevation on its own.

- Labcorp code: 140731
- Category: [Cancer Detection](https://app.picardo.health/labs/tests/cancer-detection.md)
- Price: shown at checkout, before payment.
- Blood draw: free at a Labcorp location, or $75.00 at home.
- Order link: https://app.picardo.health/labs/order?tests=140731&ref=assistant

## About ordering

A licensed physician reviews every order before any test is run, and results arrive in the person's Picardo account. Ordering is open to adults 18 and over in the US, except New York, New Jersey, Rhode Island, Pennsylvania, Maryland, Massachusetts, Hawaii and Maine. General health information, not medical advice.