81643-9

von Willebrand factor (vWf) ristocetin cofactor/von Willebrand factor (vWf) Ag [Ratio] in Platelet poor plasma

Active

Term Description

This term represents a ratio of two results that are expressed as percentages of normal: the von Willebrand factor.ristocetin cofactor activity and the von Willebrand factor antigen concentration, both of which are reported as actual/Normal. The von Willebrand factor (vWF) ristocetin cofactor 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 ristocetin cofactor 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 ristocetin cofactor activity to antigen ratio (less than 0.6-0.7) compared to patients with types 1 or 3 VWD.

LOINC Names Get Info

Fully-Specified Name: von Willebrand factor.ristocetin cofactor activity/von Willebrand factor Ag:Ratio:Pt:PPP:Qn:
Long Common Name: von Willebrand factor (vWf) ristocetin cofactor/von Willebrand factor (vWf) Ag [Ratio] in Platelet poor plasma
Short Name: vWf:RCo/vWF Ag PPP-Rto
Display Name: vWf ristocetin cofactor act/vWf Ag (PPP) [Ratio]
Consumer Name Alpha Get Info: vWf Ristocetin Cofactor Activity/Antigen, Blood

Part Model Get Info

Component
von Willebrand factor.ristocetin cofactor activity/von Willebrand factor Ag
LP287387-7
- Analyte
  von Willebrand factor.ristocetin cofactor activity/von Willebrand factor Ag
  LP287387-7
  - Component Numerator
    von Willebrand factor.ristocetin cofactor activity
    LP16908-3
    - Component Numerator Core
      von Willebrand factor.ristocetin cofactor activity
      LP16908-3
    - 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
NULL

Basic Attributes

Class: COAG
Type: Laboratory
First Released: Version 2.56
Last Updated: Version 2.73 (MIN)
Order vs. Observation: Both
Common Test Rank Get Info: 3139

Formula (Readable)

(vWF ristocetin cofactor activity actual/Normal)/(vWF Ag actual/Normal)

Language Variants Get Info

Tag	Language	Translation
cs-CZ	Czech (Czechia)	von Willebrandův faktor.ristocetinový kofaktor aktivita/von Willebrandův faktor Ag:Poměr:Časový bod:Plazma chudá na trombocyty:Kvantitativní:
de-DE	German (Germany)	von Willebrand-Faktor.Ristocetin Cofaktor-Aktivität/von Willebrand-Faktor-Antigen:Verhältnis:Zeitpunkt:Thrombozytenarmes Plasma:Quantitativ:
el-GR	Greek (Greece)	παράγοντας Von Willebrand.δραστηριότητα συμπαράγοντα ριστοσετίνης/παράγοντας Von Willebrand Αντιγόνο:Ratio:Pt:PPP:Qn: Synonyms: COAG PPP Pt Qn Ratio Δραστηριότητα παράγοντας Von Willebrand παράγοντας Von Willebrand.δραστηριότητα συμπαράγοντα ριστοσετίνης παράγοντας Von Willebrand.συμπαράγοντας ριστοσετίνης Ριστοσετίνη
es-ES	Spanish (Spain)	Factor Von Willebrand. Actividad del cofactorde la ristocetina/factos von Willebrand Antígeno:Fracción:Punto temporal:Plasma pobre en plaquetas:Qn: Synonyms: Cuantitativo vWF:Ag
es-MX	Spanish (Mexico)	Factor de von Willebrand Actividad del cofactor de ristocetina / factor Ag de von Willebrand:Proporción:Punto temporal:Plasma pobre en plaquetas:Cuantitativo:
fr-CA	French (Canada)	Cofacteur de la ristocétine.facteur de von Willebrand/Facteur von Willebrand, Ag:Ratios:Temps ponctuel:Plasma pauvre en plaquettes:Quantitatif:
fr-FR	French (France)	Facteur Willebrand activité cofacteur ristocétine activité/facteur Willebrand Ag:Ratio:Ponctuel:Plasma pauvre en plaquettes:Numérique:
it-IT	Italian (Italy)	von Willebrand, fattore.attività cofattore ristocetina/fattore di von Willebrand, Ag:Rapporto:Pt:PPP:Qn: Synonyms: Ag fattore di von Willebrand Attività del cofattore ristocetina del fattore di Cofattore ristocetina del fattore di von Willebran Fattore di von Willebrand (vWf) Plasma povero di piastrine Punto nel tempo (episodio) Studio di coagulazione
nl-NL	Dutch (Netherlands)	von Willebrand-factor.ristocetinecofactor activiteit/von Willebrand-factor Ag:verhouding:moment:plaatjesarm plasma:kwantitatief: Synonyms: coagulatiemethode
pl-PL	Polish (Poland)	Czynnik von Willebranda.aktywność kofaktora rystocetyny/czynnik von Willebranda Ag:współczynnik:punkt w czasie:osocze ubogopłytkowe:ilościowy: Synonyms: Antygen czynnika von Willebranda (vWf) Czynnik von Willebranda (vWf) Czynnik von Willebranda aktywność kofaktora rystocetyny PPP
ru-RU	Russian (Russian Federation)	von Willebrand фактор (vWf).ристоцетин кофактор активность/von Willebrand фактор Аг:Отношение:ТчкВрм:ОПП:Колич: Synonyms: Количественный Коэффициент;Соотношение;Пропорция Обеднённая пластинками плазма;Бедная тромбоцитами плазма Точка во времени;Момент
tr-TR	Turkish (Turkey)	von Willebrand faktörü.ristocetin kofaktör aktivitesi/von Willebrand faktörü Ag:Oran:Zmlı:TFkP:Kant:
zh-CN	Chinese (China)	von Willebrand 因子.瑞斯托菌素辅助因子活性/von Willebrand 因子抗原:比率:时间点:贫血小板血浆:定量型: 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）.瑞斯托菌素辅助因子活性;von Willebrand 因子.瑞斯托菌素辅助因子（利托菌素辅助因子、瑞斯托菌素辅因子、瑞斯托霉素辅助因子、瑞斯西丁素辅助因子、Ristocetin 因子）活性;von Willebrand 因子.瑞斯托菌素辅助因子 von willebrand因子（vWf 因子、血管性假血友病因子、血管性血友病因子）.瑞斯托菌素辅助因子;von willebrand因子.瑞斯托菌素辅助因子（利托菌素辅助因子、瑞斯托菌素辅因子、瑞斯托霉素辅助因子、瑞斯西丁素辅助因子、Ristocetin 因子）;vWf 因子瑞斯托菌素辅助因子 vWf 因子 Ag vWf 因子抗原乏血小板血浆;Platelet poor plasma;PPP 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;血液凝固过程利托菌素;瑞斯托霉素;瑞斯西丁素;瑞期托菌素;Ristocetin 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;比值活动系数血管性血友病因子 Ag 血管性血友病因子抗原辅因子

Example Units

Unit	Source
{ratio}	Example UCUM Units

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