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UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: von Willebrand Disease Type 2A/2B Reflex Sequence Analysis

Test Code(s): MISC / RMISC

Test Description: Test Component:

von Willebrand Factor Exon 28 Sequence Ananlysis

von Willebrand Disease 2A Sequence Analysis: Exons 11-16,26,51,52

Methodology: PCR followed by Direct Sequencing

Testing Site: Testing will be sent to an approved reference laboratory.

Turnaround Time: Routine: Approximately 1 month.

Specimen Requirements

Specimen: Blood

Collection Container: Preferred: Lavender top

Collection Volume: Preferred: 4 mL
Pediatrics: 3 mL

Sample Analyzed: Whole Blood

Stability: Ambient: 14 days
Refrigerated: 30 days
Frozen: Not acceptable


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