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Order Code: 1068

Ristocetin-Induced Platelet Aggregation (RIPA)

Test Information Icon
Test Information
Aggregation with high and low dose ristocetin is used to identify patients with type 2B von Willebrand Disease, platelet-type von Willebrand Disease or Bernard-Soulier Syndrome. To order testing, use the Platelet Aggregation Form USA test status: This is a laboratory developed test (LDT). 
Also Known As Icon
Also Known As
  • Von Willebrand Disease
  • VWF
Test Type Icon
Test Type
Functional/Serologic Test
Requested Volume Icon
Requested Volume
Twelve 4.5ml samples in 3.2% buffered sodium citrate, glass or plastic evacuated tubes
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Additional Sample Information
Contact laboratory for appointment. Test only available locally.
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Shipping Information
Room Temperature
CPT Codes Icon
CPT Codes
  • 85576x2
Method Icon
Method
Aggregation
Turnaround Time Icon
Turnaround Time
7 days
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New York State Approval
No
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DEX Z-Code™
No