Test Details
Mnemonic
PSASN
Ordering Code
1011275
CPT-4 Code(s)
G0103
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
Specimens should be drawn prior to (at least one week) such prostatic manipulations as digital rectal exam (DRE), prostatic massage, transrectal ultrasound (TRUS), and prostatic biopsy. Specimens should be drawn six weeks after a transrectal needle biopsy.
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.
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
Refrigerated: Unacceptable
Frozen: 5 months
Methodology
Chemiluminescence
Reference Range
Prostate Specific Antigen:
Female: Not provided
Male: ≤4.0 ng/mL
See patient report for age/sex dependent ranges.
Female: Not provided
Male: ≤4.0 ng/mL
See patient report for age/sex dependent ranges.
Performing Laboratory
Warde Medical Laboratory
New York DOH Approval Status
Yes