ARUP's Laboratory Test Directory

APC Resistance Profile : 0030127

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.

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.
CPT Code(s): 85307
 
 

 

 

 
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