Version 2.77

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

Fully-Specified Name

Component
Rheumatoid factor
Property
Titr
Time
Pt
System
Ser
Scale
SemiQn
Method

Additional Names

Short Name
Rheumatoid fact Titr Ser
Display Name
Rheumatoid factor (S) [Titer]
Consumer Name Alpha Get Info
Rheumatoid factor, Blood

Basic Attributes

Class
SERO
Type
Laboratory
First Released
Version 1.0l
Last Updated
Version 2.75
Order vs. Observation
Both
Common Test Rank Get Info
1311

Member of these Groups Get Info

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

Language Variants Get Info

Tag Language Translation
es-AR Spanish (Argentina) factor reumatoideo:factor de dilución (titulación):punto en el tiempo:suero:cuantitativo:
es-ES Spanish (Spain) Factor Reumatoide:Titulo / Factor de dilución:Punto temporal:Suero:Semicuantitativo:
Synonyms: Semicuantitativo
es-MX Spanish (Mexico) Factor reumatoide:Título:Punto temporal:Suero:Cuantitativo:
fr-CA French (Canada) Facteur rhumatoïde:Titre:Temps ponctuel:Sérum:SemiQn:
fr-FR French (France) Facteurs rhumatoïdes:Titre:Ponctuel:Sérum:Numérique:
it-IT Italian (Italy) Fattore reumatoide:Titr:Pt:Siero:SemiQn:
Synonyms: FR Punto nel tempo (episodio) Siero Sierologia (anticorpi e la maggior parte degli ant Titolo
ko-KR Korean (Korea, Republic Of) 류마티스 인자:역가:검사시점:혈청:정량:
nl-NL Dutch (Netherlands) reumafactor:titer:moment:serum:semikwantitatief:
pl-PL Polish (Poland) Czynnik reumatoidalny:miano:punkt w czasie:surowica:półilościowy:
pt-BR Portuguese (Brazil) Fator reumatóide:Título:Pt:Soro:Qn:
Synonyms: ; Rheumatoid fact; RF; Dilution factor; Titer; Titre; Ttr; Titered; Point in time; Random; Serum; SR; Quantitative; QNT; Quant; Quan; Fac; Fact; Serology
zh-CN Chinese (China) 类风湿因子:滴定度:时间点:血清:半定量型:
Synonyms: RF;Rheumatoid Factor 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

Unit Source
{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=17857-4