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 #

PTT

Test Code
PTT


Alias/See Also


Activated Partial Thromboplastin Time
aPTT




Preferred Specimen
1 mL sodium citrate platelet poor plasma


Minimum Volume
1 mL


Other Acceptable Specimens
Sodium citrate whole blood in original unopened collection tube delivered to the lab within 3 hours of collection.


Instructions
If frozen aliquot is sent, do not allow to thaw in transit


Transport Container
Plastic vial


Transport Temperature
Frozen


Specimen Stability
Ambient: 4 hours
Refrigerated: 4 hours
Frozen: for plasma only, 14 days


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


Clotted specimen, specimen greater than 4 hours old if plasma is not frozen, incorret fill volume in original colleciton tube, gross hemolysis or gross lipemia.
 




Setup Schedule
24/7


Report Available
Same day




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.