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ACTIVATED PROTEIN C RESISTANCE
Number 985
CPT Code 85307
Alias PROTEIN C RESISTANCE
Specimen Container Blue Top Citrate
Specimen Type Plasma Citrate
Turn Around Time 
Days Performed 
Reference Range 2.0-4.0 Ratio
Alternate Specimen 
Volume 2 mL Plasma
Stability Ambient 
Stability Refrigerated 
Stability Frozen 
Patient Preparation 

DO NOT DRAW FROM AN ARM WITH A HEPARIN LOCK OR HEPARINIZED CATHETER. IDEALLY, PATIENT SHOULD NOT BE ON ANTICOAGULANT THERAPY. AVOID WARFARIN (COUMADIN) THERAPY FOR TWO WEEKS AND HEPARIN THREE DAYS PRIOR TO TESTING.

Methodology 

Effects of adding aPC on the activated partial thromboplastin time of patient’s sample

Limitations 

This assay detects thrombotic risk factors other than factor V Leiden. This test should not be performed on individuals with extended baseline aPTT values due to the presence of lupus anticoagulants. This test should not be used for patients receiving thrombin inhibitors such as hirudin and argatroban.

Rejection Criteria 

Gross hemolysis, clotted specimen tubes <90% full

Additional Instructions 
Performing Laboratory Reference Laboratory
TagsAPCR

COVID-19 Testing Guidance

Primex Clinical Laboratories strives to provide clients with quality testing services to better support patient health. With the ongoing pandemic, COVID-19 testing has become high in demand yet testing supplies are limited.

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COVID-19 Testing Guidance

Primex Clinical Laboratories strives to provide clients with quality testing services to better support patient health. With the ongoing pandemic, COVID-19 testing has become high in demand yet testing supplies are limited.

Read More