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 #

APTT

Message
APTT-Fill tube to proper level. 


Test Code
APTT


Alias/See Also
PTT
Activated Partial Thromboplastin Time.


CPT Codes
85730

Preferred Specimen
Platelet poor citrated plasma (3.2 % Na Citrate tube (Blue Top))


Minimum Volume
0.5 mL


Instructions
APTT - Fill tube to proper level.


Transport Temperature
Room Temperature or if frozen be sure to place in frozen transport container containing dry ice.


Specimen Stability
  1. Room Temperature: Spun within 1 hour of collection and tested within 4 hours of collection. Refrigerated: 4 hours; Frozen: 2 weeks


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Blue top tubes over filled or under filled will be rejected. Clotted or grossly hemolyzed specimens, and specimens collected in any other anticoagulant other than Na Citrate. The specimen will be rejected and a proper sample will be requested.



Last Updated: November 28, 2023


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.