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19790: von Willebrand Comprehensive Panel (19790X) Print View
Interpretation      
Thromboplastin Time CLOT DET  22 - 34  seconds 
FVIII Act, Clotting CLOT DET  50 - 180  % normal 
vWF Ag TURB  50 - 217  % 
vWf: Ristocetin Co-Factor AGGL  42 - 200  % normal 
vWf Ag, Multimeric EP  Normal   

PRIMARY
1 Plasma Citrated 1 (0.8) mL   Frozen - 14 Day(s)  
ALTERNATE

1 mL [x4] (0.8) [x4] 3.2% sodium citrate (lt. blue-top) plasma

Note: Storage of whole blood at refrigerated temperatures prior
to processing may lead to cryoprecipitate formation and falsely
low Factor VIII and von Willebrand Factor studies.
Platelet Poor Plasma: Centrifuge light blue-top tube 15 minutes
at approx. 1500 g within 60 minutes of collection. Using a
plastic pipette, remove plasma, taking care to avoid the
WBC/platelet buffy layer and place into a plastic vial.
Centrifuge a second time and transfer platelet-poor plasma into a
new plastic vial. Plasma must be free of platelets (<10,000/mcl).
Freeze immediately and ship on dry ice.
Setup Schedule
Monday, Wednesday, Friday

Reported (Analytical Time)
2-13 days

CPT Codes
85730,85240,85246,85245,85247

The CPT codes provided 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 payer being billed.






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