Test Details
Mnemonic
TTFLX
Ordering Code
3514860
CPT-4 Code(s)
85670, plus 85670 if reflexed, at additional cost
Specimen Information
Collect
Light blue sodium citrate
Specimen Preparation
See appendices for coagulation test collection instructions. Send 2.0 mL plasma in a screw capped plastic vial. CRITICAL FROZEN.
Minimum Volume
1.0 mL
Transport Temperature
Frozen
Rejection Criteria
Serum, hemolyzed or non-frozen specimens
Stability
Room temperature: 2 hours
Refrigerated: 4 hours
Frozen: 2 weeks
Refrigerated: 4 hours
Frozen: 2 weeks
Methodology
Clotting
Reference Range
Thrombin Time: 14.7-19.5 seconds
Thrombin Time 1:1 Mix: 14.7-19.5 seconds
Thrombin Time 1:1 Mix: 14.7-19.5 seconds
Performing Laboratory
ARUP Laboratory
New York DOH Approval Status
Yes