A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Thrombin Time

Test Code
LAB324


Alias/See Also
TT


CPT Codes
85670

Preferred Specimen
3 mL plasma collected in 3.2% sodium citrate (light blue-top) tube


Minimum Volume
3 mL plasma


Instructions
If specimen will be delayed please send as Platelet Poor Plasma: Centrifuge light blue-top tube 15 minutes at approximately 1500 x g within 60 minutes of collection. Using a plastic pipette,remove plasma,taking care to avoid the WBC/platelet buffy layer and place into a plastic vial. Centrifuge a second time and transfer platelet-poor plasma into a new plastic vial. Plasma must be free of platelets (<10,000/mcL). Freeze immediately and ship on dry ice.


Transport Temperature
Frozen


Specimen Stability
Frozen: 7 days




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.