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Part Descriptions

LP16738-4   Rheumatoid factor
Rheumatoid factor (RF or RhF) is a blood test performed in patients with suspected rheumatoid arthritis (RA). It is an auto-antibody directed against the Fc portion of IgG, which is itself an antibody. RF and IgG form immune complexes, which are part of the disease process (serum sickness) of various rheumatological diseases. Storage/Transport Temperature: 1 mL plasma or serum, 2-8°C. (Min: 0.2 mL) Submit specimen in an ARUP Amber Transport Tube. Rheumatoid factor can also be a cryoglobulin (antibody that precipitates on cooling of a blood sample); it can be either type 2 (monoclonal IgM to polyclonal IgG) or 3 (polyclonal IgM to polyclonal IgG) cryoglobulin. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, Rheumatoid factor (Wikipedia)

LP16738-4   Rheumatoid factor
Antibodies found in adult rheumatoid arthritis patients that are directed against gamma-chain immunoglobulins. Source: National Library of Medicine, MeSH 2006

LOINC Names Get Info

Fully-Specified Name
Rheumatoid factor:Titr:Pt:Ser:SemiQn:Nephelometry
Long Common Name
Rheumatoid factor [Titer] in Serum by Nephelometry
Short Name
Rheumatoid fact Titr Ser Neph
Display Name
Rheumatoid factor Nephelometry (S) [Titer]
Consumer Name Alpha Get Info
Rheumatoid factor, Blood

Part Model Get Info

  • Component
    Rheumatoid factor
    LP16738-4
    • Analyte
      Rheumatoid factor
      LP16738-4
      • Component Numerator
        Rheumatoid factor
        LP16738-4
        • Component Numerator Core
          Rheumatoid factor
          LP16738-4
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    Titr
    LP6881-9
  • Time
    Pt
    LP6960-1
  • System
    Ser
    LP7567-3
    • System Core
      Ser
      LP7567-3
    • Super System
      NULL
       
  • Scale
    SemiQn
    LP436123-6
  • Method
    Nephelometry
    LP6415-6

Basic Attributes

Class
SERO
Type
Laboratory
First Released
Version 1.0k
Last Updated
Version 2.75 (MAJ)
Order vs. Observation
Both
Common Test Rank Get Info
16359

Member of these Groups Get Info

LOINC GroupGroup Name
LG3433-2Rheumatoid factor|Titr|Pt|ANYBldSerPl

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Revmatoidní faktor:Arbitrární koncentrace (titr):Časový bod:Sérum:Semikvantitativní:Nefelometrie
de-DEGerman (Germany)Rheumafaktor:Titer:Zeitpunkt:Serum:Semiquantitativ:Nephelometrie
el-GRGreek (Greece)Ρευματοειδής παράγοντας:Titr:Pt:Ορός:Ημιποσοτική:Νεφελομετρία
Synonyms: Pt SERO Titr Ημιποσοτική Νεφελομετρία Ορός Ρευματοειδής παράγοντας
es-ARSpanish (Argentina)factor reumatoideo:factor de dilución (titulación):punto en el tiempo:suero:cuantitativo:nefelometría
es-ESSpanish (Spain)Factor Reumatoide:Titulo / Factor de dilución:Punto temporal:Suero:Semicuantitativo:Nefelometría
Synonyms: Semicuantitativo
es-MXSpanish (Mexico)Factor reumatoide:Título:Punto temporal:Suero:Cuantitativo:Nefelometría
fr-FRFrench (France)Facteurs rhumatoïdes:Titre:Ponctuel:Sérum:Semi-Quantitatif:Néphélémétrie
fr-CAFrench (Canada)Facteur rhumatoïde:Titre:Temps ponctuel:Sérum:SemiQn:Néphélométrie
it-ITItalian (Italy)Fattore reumatoide:Titr:Pt:Siero:SemiQn:Nefelometria
Synonyms: FR Nefelometria Punto nel tempo (episodio) Siero Sierologia (anticorpi e la maggior parte degli ant Titolo
ko-KRKorean (Korea, Republic Of)류마티스 인자:역가:검사시점:혈청:정량:혼탁계측기
nl-NLDutch (Netherlands)reumafactor:titer:moment:serum:semikwantitatief:nefelometrie
Synonyms: nefelometrische methode
pl-PLPolish (Poland)Czynnik reumatoidalny:miano:punkt w czasie:surowica:półilościowy:nefelometria
pt-BRPortuguese (Brazil)Fator reumatóide:Título:Pt:Soro:Qn:Nefelometria
Synonyms: ; Rheumatoid fact; RF; Dilution factor; Titer; Titre; Ttr; Titered; Point in time; Random; Serum; SR; Quantitative; QNT; Quant; Quan; Neph; Nephelom; Light scattering; Fac; Fact; Serology
zh-CNChinese (China)类风湿因子:滴定度:时间点:血清:半定量型:浊度分析法
Synonyms: RF;Rheumatoid Factor 依靠测定散射光的分析方法;光散射;比浊;比浊法;浊度分析;浊度测定;浊度测定法 因素 效价;滴定浓度;滴定率;滴定量;滴度;稀释倍数;稀释因子;稀释系数 时刻;随机;随意;瞬间 系数 血清;血清学;血清学检验项目;血清学检验项目 (非微生物学);血清学检验项目（非微生物学）;血清学检验项目类;血清学检验项目类 (非微生物学);血清学类;血清学类检验项目;血清学类检验项目 (非微生物学);血清学类试验;血清学类试验 (非微生物学);血清学试验;血清学试验 (非微生物学);血清学试验（非微生物学）;血清学试验类 (非微生物学);血清类

Example Units

UnitSource
{titer}Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=15204-1