LOINCActiveObservation

LOINC Code 107378-2: von Willebrand factor activity.ristocetin cofactor (GPIbR) actual/normal Turbidimetry (PPP) [Relative ratio]

107378-2 is a LOINC code used to identify von Willebrand factor activity.ristocetin cofactor (GPIbR) actual/normal Turbidimetry (PPP) [Relative ratio] in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component von Willebrand factor activity.ristocetin cofactor (GPIbR) actual/Normal. It is commonly used with the system or sample type PPP.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component von Willebrand factor activity.ristocetin cofactor (GPIbR) actual/Normal. It is commonly used with the system or sample type PPP.

When is it used?

  • Used in lab systems, EHRs, and clinical data exchange.
  • May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
  • Status: ACTIVE
  • Order vs observation: Observation
  • Method: Turbidimetry

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

von Willebrand factor activity.ristocetin cofactor (GPIbR) actual/normal in Platelet poor plasma by Turbidimetry
von Willebrand factor activity.ristocetin cofactor (GPIbR) actual/Normal
Act/Nor; Activ; Actvty; COAGULATION; Cofact; Control; Fac; Fact; Movements; Plas; Platelet poor plasma; Point in time; QNT; Quan; Quant; Quantitative; Random; Relative ratio; Von will; Vonwillebrand; vWf; vWF activity GPIbR; vWfAc

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

von Willebrand factor activity.ristocetin cofactor (GPIbR) actual/normal Turbidimetry (PPP) [Relative ratio]von Willebrand factor activity.ristocetin cofactor (GPIbR) actual/normal in Platelet poor plasma by TurbidimetryvWF activity GPIbR Act/Nor PPPvon Willebrand factor activity.ristocetin cofactor (GPIbR) actual/NormalCOAGvon Willebrand factor activity.ristocetin cofactor (GPIbR) actual/normal, BloodRelRto

Frequently asked questions

Code details

Code107378-2
SystemLOINC
Display namevon Willebrand factor activity.ristocetin cofactor (GPIbR) actual/normal Turbidimetry (PPP) [Relative ratio]
Descriptionvon Willebrand factor activity.ristocetin cofactor (GPIbR) actual/Normal
Short namevWF activity GPIbR Act/Nor PPP
Componentvon Willebrand factor activity.ristocetin cofactor (GPIbR) actual/Normal
PropertyRelRto
TimingPt
System (specimen)PPP
ScaleQn
MethodTurbidimetry
ClassCOAG
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.79
Last changed2.79

Consumer names

von Willebrand factor activity.ristocetin cofactor (GPIbR) actual/normal, Blood

Part names

von Willebrand factor activity.ristocetin cofactor (GPIbR) actual/NormalRelRtoPtPPPQnTurbidimetryRelative RatioPoint in time (spot)Platelet poor plasma

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.