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| Primary Name |
Von Willebrand Profile |
| Synonym |
Von Willebrand disease profile |
| Synonym |
-- |
| Contraction |
VWD |
| Contraction |
VWD Profile |
| Contraction |
-- |
| UAB Procedure Number |
2500460 |
| CPT Code |
-- |
| Specimen |
Collect one (1) blue-stopper tube (3.2% sodium citrate), filled to specified volume. Do not underfill or overfill. |
| Specimen Management |
Centrifuge blue-stopper tube within one (1) hour of collection, separate plasma and test or quick-freeze at -70°C. |
| Specimen Accepted |
Daily including weekends |
| Times Available |
0730-1600 |
| Test Performed |
Two days a week |
| Available Stat? |
Pathologist's approval required |
| Description |
The von Willebrand disease profile includes the ristocetin cofactor, von Willebrand disease antigen assay and the factor VIII activity assay. The combination of results is used to determine the type of von Willebrand disease. |
| Reference Interval |
See guidelines |
| Critical Value |
-- |
| Therapeutic Range |
-- |
| Follow-up Test |
* When type 2B von Willebrand disease is suspected, the ristocetin response curve is suggested.
*When type 2A or 2B von Willebrand disease is suspected, the von Willebrand factor multimer assay is suggested. |
| Associated With |
Bleeding disorders |
| Associated With |
Von Willebrand disease |
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