Days Set Up
Daily, 24 hours
Analytic Time

4 hours

MiChart Code
Protein S Antigen, Free
Soft Order Code
PSA

Test Updated:

Synonyms
 

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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

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Test Overview

Test Methodology

Chemiluminescent Immunoassay (CLIA)

Test Usage

May aid as a marker for prostate cancer. Do not use as a screening procedure as PSA has been observed in patient's with benign prostatic hypertrophy. Diagnostic PSA (DPSA) should be utilized for patients with a diagnosis of prostate cancer.

Reference Range

MALE: Age 0 - 49 yrs: 0 - 2.5 ng/mL, Age 50 - 59 yrs: 0 - 3.5 ng/mL, Age 60 - 69 yrs: 0 - 4.5 ng/mL, Age 70 - 150 yrs: 0 - 6.5 ng/mL. FEMALE: Age 0 - 150 yrs: 0 - 0.1 ng/mL.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements

Collection Onsite

Collect specimen in an SST or red top tube. Refrigerate and send intact specimen within 8 hours of collection. Alternatively, centrifuge, aliquot serum into a plastic vial and refrigerate up to 48 hours or freeze for longer storage. Please indicate whether test is being orderd for Screening (PSA) or Diagnostic (DPSA) purposes.

Collection Offsite

Collect specimen in an SST or red top tube. Centrifuge, aliquot serum into plastic vial. Refrigerate up to 8 hours or freeze for longer storage. Transport to MLabs as a frozen aliquot. Please indicate whether test is being orderd for Screening (PSA) or Diagnostic (DPSA) purposes.

Yellow Top Tube
Normal Volume
0.50 mL serum
Minimum Volume
0.25 mL serum

Billing Information

CPT Code
G0103 PSA, 84153 DPSA
Pro Fee Code
 
LOINC
2857-1

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.