PRE VON WILLEBRAND FACTOR ACTIVITY
| Synonyms: | Pre VWF Activity |
| Computer Code: | (PRVWAC) |
| Specimen Collection: | 2.7 mL blood (blue top tube). Transport to lab within 3 hours. |
| Minimum Volume: | 1.5 Ml |
| Handling Instructions for Offsite Areas: | If transport time will exceed four hours, send platelet-poor plasma frozen to -20C or less.To obtain platelet- poor plasma: centrifuge and separate plasma into a transport tube. |
| Reference Values: | 40 - 163% |
| Lab Code: | Diagnostic Hematology |
| Requisition: | SPEC H |
| Test Frequency: | Weekly |
| Routine TAT: | 7 days |
| Stat TAT: | Must call Hematology lab for stat request |
| CPT Code(s): | 85397 |
| LCD or NCD: | |
| Methodology Used: |
See Addendum XVII |