von Willebrand factor (vWf).activity actual/normal in Control Platelet poor plasma by Immunoassay   74809-5

LOINC Code


LOINC code74809-5
namevon Willebrand factor (vWf).activity actual/normal in Control Platelet poor plasma by Immunoassay
descriptionMixing studies are performed using patient plasma and normal control plasma to determine the cause of decreased von Willebrand Factor (vWF) activity levels. In order to appropriately evaluate the results of the mixing studies, it is necessary to perform a vWF activity level on the normal control plasma. This code is created for, but not limited in use to, the submitter's BCS test kit.
statusACTIVE

Fully-Specified Name

componentvon Willebrand factor.activity actual/Normal
propertyRelRto  =  Relative Ratio
timePt  =  Point in time:  To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
systemPPP^Control
    PPP  =  Platelet poor plasma
scaleQn  =  Quantitative:  The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256
methodIA  =  Immunoassay:  Encompasses all immunoassays with a few exceptions, including Immune Blot and Immune Fluorescence, which were created based on historic usage.

Additional Names

short namevWf:Ac Act/Nor PPP Cont IA

Basic Attributes

classCOAG
type1  Laboratory
order vs. observationObservation
example UCUM units%
The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org)
example unit%

Associated Observations

LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations.

Member of these Panels

48593-8von Willebrand panel - Platelet poor plasma

History/Usage

test rank18591 of 2000 most commonly performed tests by labs in USA
first released
last updated2.73
last change typeMIN  - change to field other than name
change reasonRenamed Method from "Imm" to "IA" for consistency across classes (approved by Laboratory LOINC Committee 2016 12).

Related Names

Act/Nor
Activ
Actvty
COAGULATION
Contrl
Control
EIA
ELFA
ELISA
Enzyme immunoassay
Fac
Fact
Hematology
Heme
IAA
MEIA
Movements
Normal
Plas
Platelet poor plasma
Point in time
QNT
Quan
Quant
Quantitative
Random
Relative ratio
SUDS
Von will
Vonwillebrand
vWf
vWf:Ac

Copyright © 2023 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2023, 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.

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