50378-9

von Willebrand factor (vWf).collagen binding activity/von Willebrand factor Ag [Ratio] in Platelet poor plasma by Immunoassay

Active

Term Description

This term represents a ratio of two results that are expressed as percentages of normal: the von Willebrand factor.collagen binding activity and the von Willebrand factor antigen concentration, both of which are reported as actual/Normal. The von Willebrand factor (vWF) collagen binding activity to antigen ratio can help distinguish different types of von Willebrand disease (VWD). VWD types 1 and 3 are usually associated with a quantitative decrease in vWF, which would affect both the vWF collagen binding activity as well as vWF antigen concentration, while type 2 is associated with a functional defect in VWF, which would affect the activity but not the amount of antigen present. Therefore, patients with type 2 VWD are likely to have a lower vWF collagen binding activity to antigen ratio (less than 0.5) compared to patients with types 1 or 3 VWD.

Part Description

LP65368-0 von Willebrand factor.collagen binding activity
von Willebrand collagen binding assay is used to distinguish the subtype (1, 2 or 3) of von Willebrand disorders, not to establish the presence of the disorder. Source: Regenstrief Help

LOINC Names Get Info

Fully-Specified Name: von Willebrand factor.collagen binding activity/von Willebrand factor Ag:Ratio:Pt:PPP:Qn:IA
Long Common Name: von Willebrand factor (vWf).collagen binding activity/von Willebrand factor Ag [Ratio] in Platelet poor plasma by Immunoassay
Short Name: vWF CBA/vWF Ag PPP IA-Rto
Display Name: vWf.collagen binding activity/vWf Ag IA (PPP) [Ratio]
Consumer Name Alpha Get Info: vWf Collagen Binding Activity/Antigen, Blood

Part Model Get Info

Component
von Willebrand factor.collagen binding activity/von Willebrand factor Ag
LP287386-9
- Analyte
  von Willebrand factor.collagen binding activity/von Willebrand factor Ag
  LP287386-9
  - Component Numerator
    von Willebrand factor.collagen binding activity
    LP65368-0
    - Component Numerator Core
      von Willebrand factor.collagen binding activity
      LP65368-0
    - Component Numerator Core Suffix
      NULL
  - Component Denominator
    von Willebrand factor Ag
    LP70347-7
    - Component Denominator Core
      von Willebrand factor
      LP175752-7
    - Component Denominator Core Suffix
      Ag
      LP20666-1
- Challenge
  NULL
- Adjustment
  NULL
- Count
  NULL
Property
Ratio
LP6852-0
Time
Pt
LP6960-1
- Time Core
  Pt
  LP6960-1
- Time Modifier
  NULL
System
PPP
LP7494-0
- System Core
  PPP
  LP7494-0
- Super System
  NULL
Scale
Qn
LP7753-9
Method
IA
LP217197-5

Basic Attributes

Class: COAG
Type: Laboratory
First Released: Version 2.22
Last Updated: Version 2.73 (MIN)
Change Reason: The EIA method, which was always intended to cover more than just enzyme-linked immunoassay and whose display name for the long common name has always been Immunoassay, was renamed IA in order to eliminate ambiguity about whether the method has a broader meaning than just enzyme-linked immunoassay. Likewise, EIA.rapid was renamed IA.rapid. These changes were approved by the Laboratory LOINC Committee in June 2016.
Order vs. Observation: Observation
Common Test Rank Get Info: 7393

Formula (Readable)

(vWF collagen binding activity actual/Normal)/(vWF Ag actual/Normal)

Language Variants Get Info

Tag	Language	Translation
cs-CZ	Czech (Czechia)	von Willebrandův faktor.vazba na kolagen aktivita/von Willebrandův faktor Ag:Poměr:Časový bod:Plazma chudá na trombocyty:Kvantitativní:Imunoanalýza
de-AT	German (Austria)	Synonyms: von Willebrand Faktor Ratio
de-DE	German (Germany)	von Willebrand Faktor.Kollagen-Bindungsaktivität/von Willebrand-Faktor-Antigen:Verhältnis:Zeitpunkt:Thrombozytenarmes Plasma:Quantitativ:Immunoassay
el-GR	Greek (Greece)	παράγοντας Von Willebrand.δραστηριότητα δέσμευσης κολλαγόνου/παράγοντας Von Willebrand Αντιγόνο:Ratio:Pt:PPP:Qn:IA Synonyms: COAG IA PPP Pt Qn Ratio Δραστηριότητα Κολλαγόνο παράγοντας Von Willebrand παράγοντας Von Willebrand.δραστηριότητα δέσμευσης κολλαγόνου
es-ES	Spanish (Spain)	Factor von Willebrand.ensayo de unión al colágeno/factos von Willebrand Antígeno:Fracción:Punto temporal:Plasma pobre en plaquetas:Qn:IA Synonyms: Cuantitativo vWF:Ag
es-MX	Spanish (Mexico)	factor de von Willebrand, actividad de unión al colágeno / factor Ag de von Willebrand:Proporción:Punto temporal:Plasma pobre en plaquetas:Cuantitativo:Inmunoensayo
fr-CA	French (Canada)	Facteur von Willebrand.activité de liaison au collagène/Facteur von Willebrand, Ag:Ratios:Temps ponctuel:Plasma pauvre en plaquettes:Quantitatif:IA
fr-FR	French (France)	Facteur Willebrand activité de liaison au collagène activité/facteur Willebrand Ag:Ratio:Ponctuel:Plasma pauvre en plaquettes:Numérique:Immunoanalyse
it-IT	Italian (Italy)	von Willebrand, fattore.attività collagene legante/fattore di von Willebrand, Ag:Rapporto:Pt:PPP:Qn:IA Synonyms: Ag fattore di von Willebrand Attività collagene legante del fattore di von Will Fattore di von Willebrand (vWf) Immunoassay Plasma povero di piastrine Punto nel tempo (episodio) Studio di coagulazione
nl-NL	Dutch (Netherlands)	von Willebrand-factor.collageen bindingsactiviteit/von Willebrand-factor Ag:verhouding:moment:plaatjesarm plasma:kwantitatief:immunoassay Synonyms: coagulatiemethode IA
pl-PL	Polish (Poland)	Czynnik von Willebranda.aktywność wiązania kolagenu/czynnik von Willebranda Ag:współczynnik:punkt w czasie:osocze ubogopłytkowe:ilościowy:metoda immunologiczna Synonyms: Aktywność wiązania kolagenu przez vWF;Aktywność wiązania kolagenu przez czynnik von Willebranda Antygen czynnika von Willebranda (vWf) Czynnik von Willebranda (vWf) PPP
pt-BR	Portuguese (Brazil)	Fator de von Willebrand.atividade ligadora de colágeno/Fator von Willebrand Ag:Ratio:Pt:PPPQ:Qn:Imunoensaio Synonyms: ; vWF CBA; vWF:CBA; vWF:Ag; vWf; Movements; Rto; Point in time; Random; Platelet poor plasma; Plas; Quantitative; QNT; Quant; Quan; Enzyme immunoassay; ELISA; MEIA; SUDS; ELFA; IAA; Antigen; Antigens; Vonwillebrand; Von will; Fac; Fact; Bind; Actvty; Activ; COAGULATION
ru-RU	Russian (Russian Federation)	von Willebrand фактор.коллаген связывающая активность/von Willebrand фактор Аг:Отношение:ТчкВрм:ОПП:Колич:IA Synonyms: Количественный Коэффициент;Соотношение;Пропорция Обеднённая пластинками плазма;Бедная тромбоцитами плазма Точка во времени;Момент
tr-TR	Turkish (Turkey)	von Willebrand faktörü.kollajen bağlayıcı aaktivite/von Willebrand faktörü Ag:Oran:Zmlı:TFkP:Kant:İA Synonyms: İmmünölçüm, immünoassay
zh-CN	Chinese (China)	von Willebrand 因子.胶原结合活性/von Willebrand 因子抗原:比率:时间点:贫血小板血浆:定量型:免疫测定法 Synonyms: von Willebrand 因子 Ag von Willebrand von Willebrand 因子（von Willebrand Factor，vWf）;vWf;vWf 因子;血管性假血友病因子;血管性血友病因子 von Willebrand 因子（vWf 因子、血管性假血友病因子、血管性血友病因子）.胶原结合活性;von Willebrand 因子.胶原蛋白结合活性;Von willebrand 因子胶原结合活性;Von willebrand 因子胶原蛋白结合活性;vWf 因子.胶原结合活性;vWf 因子.胶原蛋白结合活性;vWf 胶原结合活性;vWf 胶原蛋白结合活性;vWF:CBA;血管性血友病因子.胶原结合活性 vWf 因子 Ag vWf 因子抗原乏血小板血浆;Platelet poor plasma;PPP 免疫测定;免疫分析法;免疫检定法;免疫检定;免疫试验;酶免疫测定法;酶免疫测定;酶免疫分析法;酶免疫检定法;酶免疫检定;酶免疫试验冯·威勒布兰德冯威勒布兰德冯威勒布兰德氏凝血功能;凝血功能试验;凝血过程;血液凝固;血液凝固功能;血液凝固过程可用数量表示的;定量性;数值型;数量型;连续数值型标尺因素时刻;随机;随意;瞬间来自于不同体系的两个观察指标之比;比;比值活动系数结合性结合性的胶原蛋白;胶原质;骨胶原血管性血友病因子 Ag 血管性血友病因子抗原

Example Units

Unit	Source
{ratio}	Example UCUM Units

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LOINC Copyright

Copyright © Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.