42147:PROSTATE SPECIFIC ANTIGEN (PSA), FREE & TOTAL RATIO
Methodology:
Chemiluminescence Immunoassay (CLIA)
Edit Date:
12/23/2009
Components:
Prostate Specific Antigen (PSA); Free PSA Percentage
Performed:
Daily
Released:
Same day as tested
CPT Code:
84153 / 84154
Specimen Collection Details
Collection:
One 7.5 mL serum separator tube (SST). Also acceptable: One 5 mL red top tube. Specimen should be collected before such prostatic manipulations as DRE, prostatic massage, TRUS, or prostatic biopsy.
Handling:
Allow to clot, centrifuge and separate serum from cells within 3 hours. Refrigerate at 2-8o C. Freeze at -20o C or colder if specimen cannot be assayed within 48 hours. Keep frozen.
Stability:
48 hours refrigerated or 5 months frozen at -20o C.
Standard Volume:
2 mL serum.
Minimum Volume:
1 mL serum.
Transport:
Refrigerated; or frozen on dry ice.
Comments:
This is a Hybritech 3rd Generation (Ultrasensitive) equimolar Total PSA with a clinical sensitivity of 0.008 ng/mL.
Rejection Criteria:
Plasma; specimen frozen and thawed more than once.
MEDICARE MAY REQUIRE A SIGNED ADVANCE BENEFICIARY NOTICE (ABN) FOR THIS TEST
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