Version 2.78

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
ACnc
Time
Pt
System
Ser/Plas
Scale
Qn
Method

Additional Names

Short Name
Rheumatoid fact SerPl-aCnc
Display Name
Rheumatoid factor Qn
Consumer Name Alpha Get Info
Rheumatoid factor, Blood

Basic Attributes

Class
SERO
Type
Laboratory
First Released
Version 1.0j-a
Last Updated
Version 2.73
Order vs. Observation
Both
Common Test Rank Get Info
497

Member of these Panels

LOINC Long Common Name
46437-0 Rheumatoid Factor and Cyclic Citrullinated Peptide IgG panel [Units/volume] - Serum
103139-2 Systemic lupus Ab panel - Serum or Plasma

Member of these Groups Get Info

LOINC Group Group Name
LG357-0 Rheumatoid factor|ACnc|Pt|ANYBldSerPl

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) Rheumafaktor:Arbiträre Konzentration:Zeitpunkt:Serum oder Plasma:Quantitativ:
de-AT German (Austria) Synonyms: Rheumafaktor
el-GR Greek (Greece) Ρευματοειδής παράγοντας:Αυθαίρετη συγκέντρωση:Χρονική στιγμή:Ορός/Πλάσμα:Ποσοτική:
Synonyms: RF
es-AR Spanish (Argentina) factor reumatoideo:concentración arbitraria:punto en el tiempo:suero:cuantitativo:
es-MX Spanish (Mexico) Factor reumatoide:Concentración arbitraria:Punto temporal:Suero o Plasma:Cuantitativo:
es-ES Spanish (Spain) Factor Reumatoide:Concentración arbitraria:Punto temporal:Suero o Plasma:Qn:
Synonyms: Cuantitativo
et-EE Estonian (Estonia) Reumatoidfaktor:Acnc:Pt:S/P:Qn:
Synonyms: Juhuslik Kvantitatiivne Plasma Seerum Seerum või plasma
fr-CA French (Canada) Facteur rhumatoïde:Concentration arbitraire:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-BE French (Belgium) Facteur rhumatoïde:Concentration arbitraire:Temps ponctuel:Sérum/Plasma:Quantitatif:
Synonyms: RF
fr-FR French (France) Facteurs rhumatoïdes:Arbitraire/Volume:Ponctuel:Sérum/Plasma:Numérique:
it-IT Italian (Italy) Fattore reumatoide:ACnc:Pt:Siero/Plasma:Qn:
Synonyms: Concentrazione Arbitraria FR Plasma Punto nel tempo (episodio) Siero Siero o Plasma Sierologia (anticorpi e la maggior parte degli ant
ko-KR Korean (Korea, Republic Of) 류마티스 인자:임의농도:검사시점:혈청:정량:
nl-NL Dutch (Netherlands) reumafactor:eenheid/volume:moment:serum of plasma:kwantitatief:
pl-PL Polish (Poland) Czynnik reumatoidalny:stężenie w jednostkach umownych:punkt w czasie:surowica lub osocze:ilościowy:
pt-BR Portuguese (Brazil) Fator reumatóide:ACnc:Pt:Soro:Qn:
Synonyms: ; Rheumatoid fact; RF; Arbitrary concentration; Point in time; Random; Serum; SR; Quantitative; QNT; Quant; Quan; Fac; Fact; Serology
ru-RU Russian (Russian Federation) Ревматоидный фактор:ПроизвКонц:ТчкВрм:Сыв/Плаз:Колич:
Synonyms: Количественный Плазма Произвольная концентрация Сыворотка Сыворотка или Плазма Точка во времени;Момент
tr-TR Turkish (Turkey) Romatoid faktör:SçKons:Zmlı:Ser/Plaz:Kant:
uk-UA Ukrainian (Ukraine) Ревматоїдний фактор:Довільна Концентрація:МоментЧасу:Сироватка/Плазма:Кількісно:
Synonyms: Arbitrary concentration; Fac; Fact; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; RF; Rheum; Rheumatology; Serology; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; UniversalLabOrders
zh-CN Chinese (China) 类风湿因子:任意型浓度:时间点:血清/血浆:定量型:
Synonyms: RF;Rheumatoid Factor 任意型浓度(单位体积);任意浓度;单位体积的任意单位数;人工型浓度 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 因素 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 血清或血浆

Example Units

Unit Source
IU/mL eCHN
units/mL REGENSTRIEF
[IU]/mL 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=11572-5