Test Details

Mnemonic

PSADX

Ordering Code

1011270

CPT-4 Code(s)

84153

Specimen Information

The intended use for this assay is measurement of serum PSA in conjunction with digital rectal examination as an aid in the detection of prostate cancer in men aged 50 years or older. These is also a second indication for this assay, which is serial measurement of PSA to aid in the prognosis and management of patients with prostate cancer; as such, specimens from patients under the age of 50 are not rejected by the laboratory. Interpretation of results, and use of provided reference range (established for the indication of prostate cancer detection in men 50 and older), should take intended uses into consideration.

Patient Preparation

Collect specimen prior to or at least one week after biopsy, rectal exam or other manipulation of prostate.

Collect

Serum separator tube (SST)

Specimen Preparation

Centrifuge, separate and freeze serum from cells within 3 hours of collection. Send 1.0 mL serum
in a screw capped plastic vial.

Alternate Specimen

Serum: Red top

Minimum Volume

0.5 mL

Transport Temperature

Frozen

Rejection Criteria

Grossly hemolyzed, grossly lipemic, non-frozen samples, plasma

Stability

Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 5 months

Methodology

Chemiluminescence
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Reference Range

Prostate Specific Antigen:
Female: Not provided
Male: ≤4.0 ng/mL

See patient report for age/sex dependent ranges.
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Performing Laboratory

Warde Medical Laboratory
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New York DOH Approval Status

Yes
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