- YSACT
Protein S, Functional (Activity)
Specimen:
Test Code
YSACT
Specimen Name
Protein S, Functional (Activity)
Collect
2-Blue Top (Na Citrate)
Submit
1.5 mLs (Min: 1 mL) Plasma Frozen
Special Handling
Transfer 1.5 mL platelet-poor plasma to a standard transport tube.
Rejection Criteria
Serum. EDTA plasma, clotted or hemolyzed specimens.
Stability
Ambient: 4 hours; Refrigerated: Unacceptable; Frozen: 3 months
Methodology
Electromagnetic Mechanical Clot Detection
Performed
Sunday - Saturday
Reported
3-5 days
CPT Codes
- 85306
Components
—
Additional Information
Acceptable test for detecting protein S deficiency. Preferred test is Protein S Free, Antigen. Do not order if the individual has been on warfarin therapy in the previous 2-4 weeks.
https://www.aruplab.com/Specimen-Handling/SpecialSpecimenCollection/Hemostasis-Thrombosis.pdf
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Test Information
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Common Lab Definitions
- Serum
- Plasma
- STT