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HelpTest Code PROTS Protein S Activity
Additional Codes
Epic EAP: LAB491
Epic Description: PROTEIN S FUNCTIONAL ACTIVITY
Specimen Type
Blood
Specimen Required
| Collection Container | Preferred Volume | Minimum Volume | |
|---|---|---|---|
| Preferred |
Light Blue, Sodium Citrate |
1 X 2.7 mL | 2.7 mL |
Specimen Stability
Specimens are stable 4 hours at 15-25°C or 4 weeks at -18°C.
Instructions for Collection and Transport
Must be in CSR within one hour of collection.
If the patient’s known hematocrit value is above 55%, an adjustment of the ratio of anticoagulant to blood is necessary. Call the laboratory for a special collection tube for that hematocrit value. Centrifuge ASAP at 3,000 rpm’s for 15 minutes. Aliquot plasma into two plastic vials. Freeze specimen. Transport frozen on dry ice. Do not thaw.
Home Health Agencies:Transport to lab within 1 hour.
Aliquot Requirements
Plasma
Optimum 2 X 1.0 mL
Minimum 0.5 mL
Performing Lab
Hematology Lab
Assay Frequency
Once a week
Routine Turnaround Time
5-7 days excluding weekends and holidays
CSR Storage Requirements
Centrifuge within 1 hour of collection. Aliquot plasma into two plastic vials. If holding overnight, aliquot and freeze specimen.
CPT Code Information
85305