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Prostate Specific Antigen (PSA)

Also known as: Total PSA; Free PSA; Complexed PSA
Formal name: Prostate Specific Antigen
Related tests: Digital Rectal Exam (DRE); Tumor markers

 

  • Why should I do it?

To screen men for prostate cancer (although there is currently no consensus about using this test to screen asymptomatic men for prostate cancer), to help determine the necessity for a biopsy of the prostate, to monitor the effectiveness of treatment for prostate cancer, and to detect recurrence of prostate cancer

 

  • When should I do it?

When a man has symptoms suggestive of prostate cancer such as difficult, painful, and/or frequent urination; may also be ordered during and at regular intervals after prostate cancer treatment. There is continued debate among experts and national organizations over when and how often to order the PSA test to screen asymptomatic men.

 

  • What Kind of Sample is Needed?

A blood sample drawn from a vein in the arm