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HelpTest Code PSAU Prostate-Specific Antigen (PSA) Ultrasensitive, Serum
Useful For
As an aid in the detection of prostate cancer when used in conjunction with a digital rectal exam in men ages 50 years and older
To aid in the prognosis and management of individuals diagnosed with prostate cancer
Monitoring disease after radical prostatectomy
This test should not be used for initial prostate cancer screening.
Method Name
Electrochemiluminescent Immunoassay (ECLIA)
Reporting Name
PSA, Ultrasensitive, SSpecimen Type
SerumOrdering Guidance
Free prostate-specific antigen (PSA) can be added on within 72 hours of performing this test. 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.
Additional Testing Requirements
Necessary Information
Include patient's age.
Specimen Required
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Serum gel tubes should be centrifuged within 2 hours of collection.
2. Red-top tubes should be centrifuged, and the serum aliquoted into a plastic vial 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 | 14 days | ||
| Ambient | 7 days |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | OK |
| Gross icterus | OK |
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
Report Available
1 to 3 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
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
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| PSAU | PSA, Ultrasensitive, S | 35741-8 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| PSAU | PSA, Ultrasensitive, S | 35741-8 |