Log In

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:Synv fld:SemiQn:LA
Long Common Name
Rheumatoid factor [Titer] in Synovial fluid by Latex agglutination
Short Name
Rheumatoid fact Titr Snv LA
Display Name
Rheumatoid factor LA (Syn fld) [Titer]
Consumer Name Alpha Get Info
Rheumatoid factor, Synovial fluid

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
    Synv fld
    LP7592-1
    • System Core
      Synv fld
      LP7592-1
    • Super System
      NULL
       
  • Scale
    SemiQn
    LP436123-6
  • Method
    LA
    LP6360-4

Basic Attributes

Class
SERO
Type
Laboratory
First Released
Version 2.26
Last Updated
Version 2.75 (MAJ)
Order vs. Observation
Both

Member of these Groups Get Info

LOINC GroupGroup Name
LG2006-7Rheumatoid factor|Titr|Pt|Synv fld

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Revmatoidní faktor:Arbitrární koncentrace (titr):Časový bod:Synoviální tekutina:Semikvantitativní:Aglutinace latexová
de-DEGerman (Germany)Rheumafaktor:Titer:Zeitpunkt:Synovialflüssigkeit:Semiquantitativ:Latexagglutination
Synonyms: Gelenksflüssigkeit
el-GRGreek (Greece)Ρευματοειδής παράγοντας:Titr:Pt:Αρθρικό υγρό:Ημιποσοτική:LA
Synonyms: LA Pt SERO Titr Αρθρικό υγρό Ημιποσοτική Ρευματοειδής παράγοντας
es-ESSpanish (Spain)Factor Reumatoide:Titulo / Factor de dilución:Punto temporal:Líquido sinovial:Semicuantitativo:Aglutinación de latex
Synonyms: Semicuantitativo
es-MXSpanish (Mexico)Factor reumatoide:Título:Punto temporal:Líquido sinovial:Cuantitativo:Aglutinación de látex
fr-CAFrench (Canada)Facteur rhumatoïde:Titre:Temps ponctuel:Liquide synovial:SemiQn:Agglutination au latex
fr-FRFrench (France)Facteurs rhumatoïdes:Titre:Ponctuel:Liquide synovial:Semi-Quantitatif:Agglutination latex
it-ITItalian (Italy)Fattore reumatoide:Titr:Pt:Liquido sinoviale:SemiQn:LA
Synonyms: Agglutinazione al lattice FR Punto nel tempo (episodio) Sierologia (anticorpi e la maggior parte degli ant Titolo
nl-NLDutch (Netherlands)reumafactor:titer:moment:synoviaal vocht:semikwantitatief:latexagglutinatie
Synonyms: LA
pl-PLPolish (Poland)Czynnik reumatoidalny:miano:punkt w czasie:płyn stawowy:półilościowy:aglutynacja lateksowa
pt-BRPortuguese (Brazil)Fator reumatóide:Título:Pt:LiqSinov:Qn:Aglutinação em látex
Synonyms: ; Rheumatoid fact; RF; Dilution factor; Titer; Titre; Ttr; Titered; Point in time; Random; Snv; Joint fluid; Joint aspirate; Synovial fluid; Syn fl; Joint fld; Joint flu; Synov; SNV; SF; Quantitative; QNT; Quant; Quan; Latex agglutination; Fac; Fact; Serology
zh-CNChinese (China)类风湿因子:滴定度:时间点:滑液:半定量型:胶乳凝集试验法
Synonyms: RF;Rheumatoid Factor 乳胶凝集试验;凝集试验.胶乳;凝集试验法.胶乳;胶乳凝集试验;胶乳颗粒凝集;胶乳颗粒凝集法;胶乳颗粒凝集试验;胶乳颗粒凝集试验法;颗粒凝集.胶乳;颗粒凝集法.胶乳;颗粒凝集试验.胶乳;颗粒凝集试验法.胶乳 关节吸出液;关节抽出液;关节液;骨膜液;滑膜腔积液;关节腔积液 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=53924-7