Ristocetin Induced Platelet Aggregation : 1000810

Message
The laboratory must be called to schedule testing before the sample is drawn. Time sensitive. Arrange for stat courier delivery to the laboratory. Special collection tubes are required.


Test Code
RIPA or 1000810


Alias/See Also
RIPA Type 2B von Willebrand; RAT; Ristocetin Affinity Titration


CPT Codes
85576

Includes
Includes testing with varying concentrations of ristocetin depending on patient's platelet response.


Instructions
Two special plastic screw top tubes obtained from the laboratory (Available from Client Services supply #13729). NOTE: Local draws only - the sample must be tested within 2 hours of draw. The laboratory must be called to schedule testing before the sample is drawn. Deliver to laboratory ASAP.


Transport Container
Whole blood special plastic screw top tube (Min. 9 mL): do not centrifuge and keep ambient.


Transport Temperature
Ambient.


Specimen Stability
Ambient: 2 hours; Refrigerated: Unacceptable; Frozen: Unacceptable


Methodology
Aggregation

Setup Schedule
Monday - Friday


Report Available
1 day


Reference Range
>0.6 mg/mL


Performing Laboratory
med fusion



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.