ARUP's Laboratory Test Directory
| 0030127: APC Resistance Profile |
| Test Mnemonic: APC RST | |
|
Methodology: Clotting
Performed: Mon, Wed, Fri Reported: 1-4 days |
| Specimen Required: | |
|
Collect: One 5 mL lt. blue (sodium citrate). (Min: 3 mL) Refer to the Hemostasis/Thrombosis Specimens section in the front of this User's Guide for specimen collection instructions.
Transport: 1.5 mL platelet-poor plasma, frozen. (Min: 1 mL) Submit specimen in an ARUP Standard Transport Tube. Pediatric Collection/Transport: 1 mL platelet-poor plasma, frozen. Unacceptable Conditions: Serum. Nonfrozen or hemolyzed specimen. Stability: Ambient: 4 hours; Refrigerated: 4 hours; Frozen: 2 weeks |
|
| Reference Interval: |
| Greater than 0.61 |
| Interpretive Data: | |
|
Ratios less than or equal to 0.61 suggest APC resistance. This method uses factor V deficient plasma; therefore, APC resistance due to a nonfactor V mutation will not be detected. Extreme factor V deficiency may cause abnormal ratio.
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| CPT Code(s): | |
| 85307 |