Thrombin Time

Test Code

CPT Codes

Preferred Specimen
Testing should be performed within 8 hours of draw. Draw blood in a blue-top (sodium citrate) tube. Spin specimen down twice and send 1 mL of plasma in plastic vial. If testing is delayed plasma should be placed in a tightly-sealing tube.
NOTE:  If patient is on heparin therapy, plasma will only be stable for 2 hours at room temperature.

Transport Temperature
Frozen ≤1 month 

Clot-based assay

Setup Schedule
Monday through Sunday

Reference Range
13-21 seconds

Performed By
North Mississippi Medical Center Pathology Department

Performing Laboratory
NMMC Pathology Department

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.