PROTEIN C RESISTANCE, ACTIVATED (APCR)

Test Code: D227Specimen Collection: Plasma
Component:

ACPR Resistance

Method:

CLOT DET

Collection Notes: Draw to the proper fill level (do not overfill or underfill) because the correct ratio of blood to citrate is critical (9:1). Mix by gentle inversion 3 – 4 times. Centrifuge for 15 min at 1500 x g within 60 minutes of collection. Remove plasma using a plastic pipette being careful not to disturb the buffy coat. Repeat centrifugation at 1500 x g for 15 minutes to assure complete platelet removal. Dispense the plasma into labeled, screw-top plastic tube(s) using a plastic transfer pipette. Freeze immediately. Stable for 6 months at -20 C. Specimen must remain frozen at all times. Avoid hemolysis.<br> Do not submit a hemolyzed specimen, or a one having microclots present.
Clinical Utility: APCR is the most commonly observed abnormality among patients with venous thromboembolism.
CPT Code: 85307Testing Location: Sent to reference lab
SPECIMEN/STABILITY TYPE
Temperature:

*Plasma, citrated (2 mL)

Ambient
 
1
 
Hours
Refrigerated
 
4
 
Hours
Frozen
 
6
 
Months
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