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Test Code THR Thrombin Time

Cerner Test Code

THR

Acceptable Collection Tube(s) or Specimen

Blue

Specimen Draw Volume

2.7 mL

Processing Instructions

Draw 2.7 mL in a Blue Top tube. Centrifuge tube and remove plasma, centrifuge plasma again, and place 1 mL of platelet-poor plasma in an aliquot tube and freeze. (Double centrifuged specimens are necessary for accurate results).

Stability

Stability: Plasma: Room temp 24 hrs, Refrigerated 24 hrs, Frozen 4 months. Whole Blood: tubes left capped/unspun are stable for 24 hours at room temperature.

Performed Test Frequency

Everyday

CPT(s)

85670

Methodology

Clotting

Performing Location

MercyOne Des Moines Laboratory, Hematology

Rejection Criteria

Rejection criteria: Room Temp or refrigerated specimen, hemolyzed specimen