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HelpTest ID SPSA Prostate-Specific Antigen (PSA) Screen, Serum
Useful For
As a screening aid in the detection of prostate cancer when used in conjunction with a digital rectal exam in men aged 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: Sarstedt Aliquot Tube 5mL (T914)
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL serum
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 Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Frozen (preferred) | 180 days |
| Refrigerated | 5 days |
Reference Values
Males:
<40 years: ≤2.0 ng/mL
40-49 years:≤2.5 ng/mL
50-59 years: ≤3.5 ng/mL
60-69 years: ≤4.5 ng/mL
70-79 years: ≤6.5 ng/mL
≥80 years: ≤7.2 ng/mL
Females: Not applicable
Day(s) Performed
Monday through Saturday
CPT Code Information
84153
G0103 (if appropriate)
Report Available
1 to 3 daysReject Due To
| Gross hemolysis | Reject |
| Gross lipemia | OK |
| Gross icterus | OK |
Forms
If not ordering electronically, complete, print, and send an Oncology Test Request (T729) with the specimen.