Von Willebrand Factor Antigen
Order Name
VON WIL AG
Test Number: 5502200
Revision Date 07/30/2018
Test Number: 5502200
Revision Date 07/30/2018
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Von Willebrand Factor Antigen
|
Immunoturbidimetry | 27816-8 |
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 2 mL (1.5mL) | Plasma | Sodium Citrate 3.2% (Blue Top) | Frozen |
| Instructions | Tubes must be filled to the proper level, no hemolysis. Improperly filled tubes can give erroneous results. Whole blood must be transported to lab immediately. If testing cannot be started within 4 hours of collection the specimen must be double spun to create One to Two 1.5mL plasma aliquot from each tube into individual plastic aliquot tubes and freeze. Do not pool aliquots together! Do not thaw. Hemolyzed specimens are not acceptable. Overnight fasting is preferred. |
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| GENERAL INFORMATION | |
|---|---|
| Testing Schedule | Tues - Fri |
| Expected TAT | 3-4 Days |
| CPT Code(s) | 85246 |
| Service Provided By |  |
| Lab Section | Coagulation |