Test Details
Mnemonic
LUPAC
Ordering Code
2500780
CPT-4 Code(s)
85613 (dRVVT Screen), 85730 (PTT screen), plus 85613 (dRVVT 1:1 Mix) and/or 85613 (dRVVT confirm) and/or 85598 (Hexagonal Phospholipid neutralization) and/or 85732 (PTT1:1 Mix) as appropriate, at additional cost
Specimen Information
Patient Preparation
Patient should not be on warfarin (Coumadin®) therapy for 2 weeks or heparin therapy for 2 days prior to the test. If the patient is currently on warfarin or heparin, this should be noted, as warfarin or heparin therapy can affect certain coagulation factors or assays, preclude their performance, or cause spurious results.
Collect
Light blue 3.2 % sodium citrate
Specimen Preparation
Send 3.0 mL plasma in a screw capped plastic vial. CRITICAL FROZEN.
Minimum Volume
2.0 mL
Transport Temperature
CRITICAL FROZEN
Rejection Criteria
Hemolyzed specimen, thawed specimen, refrozen specimen, serum
Stability
Room temperature: 8 hours
Refrigerated: Unacceptable
Frozen: 30 days
Refrigerated: Unacceptable
Frozen: 30 days
Methodology
Clotting
Reference Range
Negative
Performing Laboratory
Warde Medical Laboratory
New York DOH Approval Status
Yes