1 hour
Test Updated:
Thrombin Time, Diagnostic
TTD CONT
TTD SEC
DIGNOSTIC THROMBIN TIME CONT
THROMBIN TIME DX, SECONDS
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Test Overview
Clot determination with human thrombin.
Detection of low or dysfunctional fibrinogen and fibrinolytic degradation products.
< 21 seconds
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Specimen Requirements
Collect specimen in a blue top (citrate 3.2%) tube. Mix by inversion. Specimen should arrive at lab within 3 hours of collection; transport at room temperature. Alternatively, centrifuge, aliquot plasma into a plastic vial, and freeze the specimen within 4 hours of collection. Transport frozen specimen on dry ice. Collection of the blood through lines that have been previously flushed with heparin should be avoided. If the blood must be drawn through a VAD (vascular access device), the line should be flushed with 5 mL of saline and the first 5 mL of blood or six dead space volumes of the VAD discarded.