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

Methodology

Clotting
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Reference Range

Thrombin Time: 14.7-19.5 seconds
Thrombin Time 1:1 Mix: 14.7-19.5 seconds
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Performing Laboratory

ARUP
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New York DOH Approval Status

Yes
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