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HelpTest Code SPSA Prostate-Specific Antigen (PSA) Screen, Serum
Reporting Name
Prostate-Specific Ag Screen, SUseful For
As a screening aid in the detection of prostate cancer when used in conjunction with a digital rectal exam in men 50 years or older
Screening to aid in the prognosis and management of individuals diagnosed with prostate cancer
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
SerumOrdering Guidance
Free prostate-specific antigen (PSA) can be added to previously-submitted PSA screen specimen within 72 hours of performing the total PSA. Specimen must have been shipped frozen.
If both free and total PSA results are desired, order PSAFT / Prostate-Specific Antigen (PSA), Total and Free, Serum.
Necessary Information
Include patient's age.
Specimen Required
Supplies: Starstedt Aliquot Tube 5mL (T914)
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Red-top tube must be centrifuged, and the serum aliquoted into a plastic vial within 2 hours of collection.
2. Serum gel tube must be centrifuged within 2 hours of collection.
Specimen Minimum Volume
0.75 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Frozen (preferred) | 180 days | |
| Refrigerated | 5 days |
Reference Values
Males:
|
Age (years) |
PSA upper limit (ng/mL) |
|
<40 |
≤2.0 |
|
40-49 |
≤2.5 |
|
50-59 |
≤3.5 |
|
60-69 |
≤4.5 |
|
70-79 |
≤6.5 |
|
≥80 |
≤7.2 |
Females: Not applicable
Day(s) Performed
Monday through Saturday
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
84153
G0103 (if appropriate)
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| SPSA | Prostate-Specific Ag Screen, S | 83112-3 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| SPSA | Prostate-Specific Ag Screen, S | 83112-3 |
Report Available
1 to 3 daysReject Due To
| Gross hemolysis | Reject |
| Gross lipemia | OK |
| Gross icterus | OK |
Method Name
Electrochemiluminescent Immunoassay
Forms
If not ordering electronically, complete, print, and send an Oncology Test Request (T729) with the specimen.