PSA Test (Prostate-Specific Antigen Test)

A PSA test measures the level of prostate-specific antigen in the blood. Elevated levels may indicate prostate cancer, enlarged prostate, or inflammation.

• No special preparation is required.
• Avoid vigorous exercise, ejaculation, or certain medical procedures (like prostate biopsy) for 48 hours before the test, as they may affect results.
• Inform your provider about medications, especially 5-alpha-reductase inhibitors, which can lower PSA levels.

The test is a simple blood draw from a vein, taking only a few minutes.

• Minimal risks from blood draw, such as bruising or soreness at the needle site.
• False positives and false negatives can occur, which may lead to unnecessary further testing.

Results are usually available within a few days. Elevated PSA does not always mean cancer; your doctor will interpret the results in context and may recommend repeat testing, imaging, or prostate biopsy.