von Willebrand factor (vWf).activity actual/normal in Control Platelet poor plasma by Immunoassay 74809-5
LOINC Code
| LOINC code | 74809-5 | ||
|---|---|---|---|
| name | von Willebrand factor (vWf).activity actual/normal in Control Platelet poor plasma by Immunoassay | ||
| description | Mixing 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. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | von Willebrand factor.activity actual/Normal | ||
| property | RelRto = Relative Ratio | ||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||
| system | PPP^Control PPP = Platelet poor plasma | ||
| scale | Qn = 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 | ||
| method | IA = Immunoassay: Encompasses all immunoassays with a few exceptions, including Immune Blot and Immune Fluorescence, which were created based on historic usage. | ||
Additional Names | |||
| short name | vWf:Ac Act/Nor PPP Cont IA | ||
Basic Attributes | |||
| class | COAG | ||
| type | 1 Laboratory | ||
| order vs. observation | Observation | ||
| 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 | |||
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History/Usage | |||
| test rank | 18591 of 2000 most commonly performed tests by labs in USA | ||
| first released | |||
| last updated | 2.73 | ||
| last change type | MIN - change to field other than name | ||
| change reason | Renamed Method from "Imm" to "IA" for consistency across classes (approved by Laboratory LOINC Committee 2016 12). | ||
Related Names | |||
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