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Test & Collection Guide

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Activated Protein C Resistance

Ordering information:

APCR no longer available ; request alternative test Factor V  Leiden.

Alternate names:
APC, APC Ratio, APC Resistance, APCR
Laboratory:
Coagulation
Test Code:
APCRE
Specimen types:
Plasma
Container types:
Sodium CitrateSodium Citrate
Collection Instructions:

APCR no longer available ; request alternative test Factor V  Leiden.

Minimum Adult Volume:
7 mL
Notes:

May identify venous thrombotic risk.

Can be performed on patients taking warfarin and/or heparin.

Screening test for Factor V Leiden but not specific for Factor V Leiden.

See also - Factor V Leiden

 

Tube filled to label marker and mixed by inversion.

Do not use 1 mL citrate tubes.

Frequency:
Weekly
Result Turnaround Time:
2 weeks
Reference Interval:

Ratio: 2.3-8.0

Laboratory Use Only
Storage Instructions:

Centrifuge the two 3.5 mL citrate tubes and transfer the plasma to a labeled 4 mL plastic tube and re-centrifuge at room temperature (do not use the refrigerated centrifuge).

The double centrifuged plasma is transferred to two 1 mL eppendorf tubes and freeze.