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 #

Prothrombin Time with INR

Test Code
PT


Preferred Specimen
Sodium Citrate-Light Blue


Instructions
"The ratio of blood to anticoagulant is critical. Blue top must be completely full to fill line for a 9:1 ratio.
Testing Frequency: 24/7"


Transport Container
BLUE, Na Citrate


Specimen Stability
Stability: 24 hours room temperature


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)


Patient plasma should be tested within 24 hours (centrifuged or
uncentrifuged) if stored in an unopened tube at Room Temp.
Refrigerated samples unacceptable.




Methodology
Light-scatter



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.