Platelet Aggregation (low dose ristocetin for von Willebrand disease)

CG0083

Synonym(s):
Specimen Container

Sodium Citrate Tube

Specimen Requirement

Citrated Whole Blood
10 mL of blood. Fill blood up to the marking on tube and mix well.

Patient to fast overnight prior to test and should not be on anti-platelet medication for at least 2 weeks for investigation of bleeding disorder

Specimen Storage/Transport

Send immediately at room temperature. DO NOT send with ice pack.

Orderable as Urgent? No
Turn Around Time

​1 day

Testing Laboratory Location

​SGH

Laboratory Haematology
Contact Number

6326 6022

Day and Time Performed

By appointment only
Monday - Friday

Orderable on CPOE? Yes
Downtime Form

63170-Form-1080 Haematology Laboratory Downtime Form

Additional Information

New platelet aggregation test using low dose ristocetin for confirmation of Type 2B von Willebrand disease.

All platelet aggregation tests are by appointment only, please contact SGH Haematology laboratory 6326 6022.

Change History Notes

  • 08 Feb 2023 12:00 AM

    Updated Laboratory.

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Last Updated - 05 Apr 2025