PSA Screening ()
Department: Chemistry
Test Synonym(s): LAB6271, PSA, Prostate Specific Antigen
CPT Codes: 84153
Methodology: Abbott Chemiluminescent Microparticle Immunoassay (CMIA)
Reference Range: None: Please refer to comment in "Significance"
Tube Type: Gold top tube
Specimen: Serum
Pediatric Requirements: 2 Gold microtainers
Volume: 1 mL Serum
Minimum Volume: 1 Gold top (Pediatric = 2 Gold top microtainers)
Stability: Refrigerated (2-8 C): 24 hours; Frozen (-20 C): 1 year
Days Performed: Daily
Times Performed: Continuous
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. Patient results determined by assays using different manufacturers for methods may not be comparable.
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