Test Details
Mnemonic
TPLA
Ordering Code
3681950
CPT-4 Code(s)
85415
Specimen Information
Patient Preparation
Follow coagulation test collection methods in appendices.
Collect
Light blue sodium citrate
Specimen Preparation
Send 1.0 mL plasma in a screw capped plastic vial. CRITICAL FROZEN.
Minimum Volume
0.5 mL
Transport Temperature
Critical frozen
Rejection Criteria
Serum, EDTA plasma, or hemolyzed specimens
Stability
Room temperature: 4 hours
Refrigerated: Unacceptable
Frozen: 60 days
Refrigerated: Unacceptable
Frozen: 60 days
Methodology
Enzyme Linked Immunoassay
Reference Range
≤12.4 ng/mL
Performing Laboratory
ARUP Reference Laboratory
New York DOH Approval Status
Yes