Laboratory Lab results are too important to go anywhere else.

Total Prostate Specific Antigen (tPSA) for males 39 and younger

Test Codes

Screening: EPIC: LAB8584, Beaker: XPSAS, Mayo: SPSA;  Diagnostic: EPIC: LAB8585, Beaker: XPSAD, Mayo: PSA

Department

Send Outs

Instructions

• Only performed on male patients at birth, and who are 39 and younger.
• Prostate Specific Antigen, Screening, is restricted to one order per patient every 365 days.
• Prostate Specific Antigen, Diagnostic, can be ordered as medically necessary.

Specimen Collection Criteria

Collect: One Gold-top SST tube.
Also acceptable: One Red top tube.

Physician Office/Draw Specimen Preparation

Let serum specimens clot 30-60 minutes then immediately centrifuge to separate serum from cells. Transfer serum to plastic transport tube and freeze (-20°C/-4°F or below).

Preparation for Courier Transport

Transport: 1.0 mL serum, frozen (-20°C/-4°F or below). (Minimum: 0.75 mL)

Rejection Criteria

• Female patients.
• Plasma specimens.
• Hemolyzed specimens.
• Red-top tubes with serum not separated from cells within two hours of collection.

In-Lab Processing

Let serum specimens clot 30-60 minutes then immediately centrifuge to separate serum from cells. Transfer serum to plastic transport tube and freeze (-20°C/-4°F or below).

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): Unacceptable
Refrigerated (2-8°C or 36-46°F): 5 days
Frozen (-20°C/-4°F or below): 180 days

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to Mayo Medical Laboratories, Rochester, MN.

Performed

Monday – Saturday.
Results available in 1-3 days.

Reference Range

By report.

Test Methodology

Electrochemiluminescent Immunoassay (ECLIA).

Clinical Utility

Monitoring patients with a history of prostate cancer as an early indicator of recurrence and response to treatment.

CPT Codes

84153 (alternate code: G0103).

Contacts

Last Updated

12/4/2023