Prostate Specific Antigen (PSA), Free, Serum (Referred Out) - Saskatoon
Discipline
Biochemistry
Overview
Description
Ordering Recommendation
- Free PSA will only be done if total PSA must be greater than 4 µg/L and less than or equal to 10 µg/L
Alias
- Prostate-specific antigen
- Gamma-seminoprotein
- Kallikrein-3
- PSA, Free
Specimen Information
Specimen types accepted
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Serum
Specimen collection container
- Preferred collection container: Gold (gel) 5.0 mL
Required volume
- Optimal volume: 4.5 mL full collection tube
- Minimum volume: 1 mL serum
(Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection.)
Rejection criteria
- Specimens received where the collection protocols were not followed
- Pathology and Laboratory Medicine Acceptance and Rejection Criteria
Performance
Days/times performed
Availability |
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Testing Site |
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Maximum laboratory time
Results reporting
- One week turnaround time by referral laboratory
Last Updated: October 8, 2024