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SCHS Laboratory Services:

Forms:

SCHS Specimen Container Guide

Genetic Testing Pre-Authorization

Reference Ranges

Useful Links

Mayo Clinic Laboratories

Test Code LAB171 PSA, TOTAL AND FREE

Additional Codes

Internal: 10398

External: PSAFREE
Beaker: LAB171

PERFORMED AT

SBH LABORATORY

Specimen Requirements

Container Type: Lithium Heparin (Green Top) or Serum Separator (Gold Top)
Specimen Type: Plasma or Serum
Preferred Volume: 1 mL
Emergency Minimum Volume: 0.3 mL
Specimen Processing: Separate serum or plasma from cells as soon as possible by centrifugation. Store and transport refrigerated. One freeze/thaw acceptable.

Limitations: Samples should not be taken from patients receiving therapy with high biotin doses (i.e. >5 mg/day) until at least 8 hours following the last biotin administration.
Alternate Specimens: Plain Serum Tube (Red Top). The same sample type should be used for each draw in series tests.

 

Stability:

Temperature Time
Room Temp Unacceptable
Refrigerated 5 days
Frozen (-20 øC) 3 months

Method

ECLIA

Synonyms

Free PSA, PROSTATE SPECIFIC ANTIGEN FREE AND TOTAL, Free and Total PSA, PSA

CPT Codes

Total PSA: 84153

Free PSA: 84154

Department

Chemistry

Test Schedule

Daily

Test Includes

Total PSA; Free PSA; Free/Total PSA Ratio

Reference Lab

SCHS

Remarks

Minimum detectable concentration is 0.015 ng/mL for Total PSA.