6012-9
von Willebrand factor (vWf) Ag [Units/volume] in Platelet poor plasma by Immunoassay
Active
Part Description
LP16906-7 von Willebrand factor
Von Willebrand factor (vWF) is a high-molecular-weight plasma protein produced by endothelial cells and megakaryocytes. It is part of the factor VIII/vWF complex. The vWF has receptors for collagen, platelets, and ristocetin. Ristocetin is an antibiotic, previously used to treat staphylococcal infections, now mainly used in vitro to diagnose conditions such as von Willebrand disease. Platelet agglutination caused by ristocetin can occur only in the presence of von Willebrand factor multimers, so if ristocetin is added to blood lacking the factor it will not coagulate. The vWF facilitates the adhesion of platelets to collagen and hemostatic plug formation. The prolonged bleeding time in von Willebrand's disease is due to the deficiency of this factor.
Source: National Library of Medicine, MeSH 2006
Reference Information
| Type | Source | Reference |
|---|---|---|
| Mapping Guidance | Regenstrief Help | Measures the amount of vWF protein, reported as a concentration. Mapper’s Guide for the Top 2000 plus LOINC Laboratory Observations |
Fully-Specified Name
- Component
- von Willebrand factor Ag
- Property
- ACnc
- Time
- Pt
- System
- PPP
- Scale
- Qn
- Method
- IA
Additional Names
- Short Name
- vWF Ag PPP IA-aCnc
- Display Name
- vWf Ag IA Qn (PPP)
- Consumer Name Alpha Get Info
- vWf antigen, Blood
Basic Attributes
- Class
- COAG
- Type
- Laboratory
- First Released
- Version 1.0d
- Last Updated
- Version 2.73
- Change Reason
- Renamed Method from "Imm" to "IA" for consistency across classes (approved by Laboratory LOINC Committee 2016 12).
- Order vs. Observation
- Both
- Common Test Rank Get Info
- 2386
Language Variants Get Info
| Tag | Language | Translation |
|---|---|---|
| de-DE | German (Germany) | von Willebrand-Faktor Ag: |
| es-AR | Spanish (Argentina) | [antígeno de] factor de von Willebrand [Ag]: |
| es-ES | Spanish (Spain) | Factor de Von Willebrand Antígeno: Synonyms: Cuantitativo vWF: |
| es-MX | Spanish (Mexico) | factor Ag de von Willebrand: |
| et-EE | Estonian (Estonia) | Von Willebrand faktor antigeen: Synonyms: Juhuslik Kvantitatiivne Trombotsüütidevaene plasma |
| fr-CA | French (Canada) | Facteur von Willebrand , Ag: |
| fr-FR | French (France) | Facteur Willebrand antigène: |
| fr-BE | French (Belgium) | Facteur von Willebrand Ag: Synonyms: Antigène Fvw |
| it-IT | Italian (Italy) | von Willebrand, fattore , Ag: Synonyms: Concentrazione Arbitraria Fattore di von Willebrand (vWf) Immunoassay Plasma povero di piastrine Punto nel tempo (episodio) Studio di coagulazione |
| ko-KR | Korean (Korea, Republic Of) | 폰 빌레브란트 인자 항원: |
| nl-NL | Dutch (Netherlands) | von Willebrand-factor Ag: Synonyms: antigeen coagulatiemethode IA |
| pl-PL | Polish (Poland) | Czynnik von Willebranda Ag: Synonyms: Antygen czynnika von Willebranda (vWf) Czynnik von Willebranda (vWf) PPP |
| pt-BR | Portuguese (Brazil) | Fator de von Willebrand Ag: Synonyms: ; |
| ru-RU | Russian (Russian Federation) | von Willebrand фактор (vWf) Аг: Synonyms: Количественный Обеднённая пластинками плазма; |
| tr-TR | Turkish (Turkey) | von Willebrand faktörü Ag: Synonyms: Antijen İmmünölçüm, immünoassay |
| zh-CN | Chinese (China) | von Willebrand 因子 抗原: Synonyms: Ag von Willebrand 因子 Ag von Willebrand von Willebrand 因子（von Willebrand Factor， |
Example Units
| Unit | Source |
|---|---|
| U/mL | eCHN |
| [IU]/mL | Example UCUM Units |
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