Test Includes
Prothrombin Time (PT); PT 1:1 NP; PT 1:1 NP 60 Min Incubation; PT 1:1 NP 60 Min Incubation Control
Expected Turnaround Time
1 - 3 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Specimen Requirements
Specimen
Citrated plasma
Volume
Two tubes, 1 mL each
Minimum Volume
1 mL (Note: This volume does not allow for repeat testing.)
Container
Light blue-top (sodium citrate) tube
Storage Instructions
Ship frozen on dry ice.
Test Details
Methodology
Clot
Additional Information
PT mixing studies will not be performed unless the PT is >2 seconds prolonged beyond the upper limit of the reference interval.