Protein C, Total Antigen PCAG
| Method(s) | Enzyme Immunoassay | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Specimen Required | |||||||||||||||||
| Collect | One 3 mL light blue (sodium citrate) top tube. See Collection and Processing of Coagulation Specimens information (link below). |
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| Transport | 2 mL platelet-poor plasma, frozen. (Min: 1 mL) | ||||||||||||||||
| Stability | Ambient: 4 hours; Refrigerated: Unacceptable; Frozen: 3 months | ||||||||||||||||
| Unacceptable Conditions | Serum, EDTA plasma, clotted or hemolyzed samples. |
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| Schedule | Daily | ||||||||||||||||
| Billing Code | 5010213 | ||||||||||||||||
| CPTCode | 85302 | ||||||||||||||||
| Notes | Patient on warfarin may have decreased protein C values. Patients should be off warfarin therapy for two weeks for accurate measurement of protein C. | ||||||||||||||||
| Preferred Specimen Collection Device(s) | |||||||||||||||||
| Reference Interval | |||||||||||||||||
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