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Vanderbilt Pathology Laboratory Services

Test Directory



PROSTATE SPECIFIC ANTIGEN (PSA)

Department: Chemistry
Test Synonym(s): PSA
CPT Codes: 84153
Methodology: Immunoenzymatic (Sandwich) Assay
Reference Range: None: Please refer to comment below
Tube Type: Red top tube - 5 mL
Specimen: Serum
Pediatric Requirements: 2 microtainers
Volume: 3 mL Serum
Minimum Volume: 0.7 mL Serum
Stability: 1 day @ 2-8 degrees C; >1 day-Frozen @ -20 degrees C
Days Performed: Daily
Significance: PSA is used to assist in diagnosis and monitoring of prostate cancer. When used as an initial screening test, there is no universally accepted normal range for PSA. The PSA value should be interpreted in light of factors such as age, race, family history of prostate cancer, digital rectal examination result, and result of prior prostate biopsy. For more information on calculating prostate cancer based on these factors, see the Prostate Cancer Prevention Trial risk calculator at: http://deb.uthscsa.edu/URORiskCalc/Pages/uroriskcalc.jsp

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