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Test Code LAB335 Ristocetin Cofactor Activity

AKA

vonWillebrand factor activity

Specimen Type/Requirements

1 Blue-Top (Sodium Citrate) Tube

Tube must be filled to the minimum draw line. Transport to laboratory immediately. 

Stability/Transport

Room Temperature 4 hours  
Refrigerated N/A  
Frozen 1 month (platelet-poor plasma) Preferred for Transport

 

Performed Test Frequency

Tuesday and Friday

Methodology

Platelet agglutination

CPT

85245

Additional Information

Part of VonWillebrand Workup BLOD0371

Report Available

1-4 days

Specimen Volume

Preferred Volume 1 full Blue-Top (Sodium Citrate) Tube
Minimum Volum 1 mL platelet-poor plasma

 

Performing Lab

Sanford Laboratories Fargo- Core Lab

Interface Build Information

Result Code Result Code Description
17073 Ristocetin Cofactor Activity