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Test Code PTTPT PTT and PT

Cerner Test Code

PTTPT

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: Room Temp 2 hrs , Frozen 2 weeks

Performed Test Frequency

Everyday

CPT(s)

85610|85730

Methodology

Clotting

Performing Location

MercyOne Des Moines Laboratory, Hematology

Rejection Criteria

Rejection criteria: Refrigerated plasma.