Test Code: 117705
CPT Code: 85303
Also Known As: Functional Protein C; Protein C, Functional, Plasma; Protein C, Functional Blood Test; Protein C Activity (Chromogenic)
Methodology:
A specific enzyme extracted from the venom of Agkistrodon c. contortrix is used to activate PC in the patient sample. All other factors required for normal aPTT are supplied in the reagent. The activated protein C inhibits factors V and VIII in the reagent and the resultant prolongation of the aPTT-based clotting time is proportional to plasma PC activity.
Specimen Type: Blood, Plasma
Preparation:
No fasting required. Ideally, patients should not be on anticoagulant therapy. Avoid warfarin therapy 2 weeks before blood draw. Avoid heparin, direct Xa, and thrombin inhibitor therapies for 3 days before blood draw. Check with physician before stopping any medications.
Test Results:
5-7 days. May take longer based on weather, holiday or lab delays.
Test Code: 1777
CPT Code: 85303
Also Known As: Functional Protein C; Protein C, Functional, Plasma; Protein C, Functional Blood Test; Protein C Activity (Chromogenic)
Methodology:
Clotting Assay
Specimen Type: Blood, Plasma
Preparation:
No fasting required. Ideally, patients should not be on anticoagulant therapy. Avoid warfarin therapy 2 weeks before blood draw. Avoid heparin, direct Xa, and thrombin inhibitor therapies for 3 days before blood draw. Check with physician before stopping any medications.
Test Results:
5-7 days. May take longer based on weather, holiday or lab delays.
