PTT, Heparinized patient

Test Code
LAB317


Alias/See Also
PTT Hep


CPT Codes
85730

Preferred Specimen
Blue Top (sodium citrate) tube


Minimum Volume
Full tube


Instructions
Fully collect a Blue Top (sodium citrate) tube. Underfilled tubes will not be accepted. Mix sample immediately by gentle inversion at least six times.


Transport Temperature
Room Temp


Specimen Stability
2 Hours
4 hrs. is when sample is collected using CTAD tube


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


Reference Range
70-104 secondsĀ  ; Critical value: Less than 64.9 or greater than 105.0 seconds


Additional Information
Guidelines for Hypercoagulable State Testing


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.