LOINC
Version 2.73

13634-1Rheumatoid factor [Units/volume] in Synovial fluidActive

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
Synv fld
Scale
Qn
Method

Additional Names

Short Name
Rheumatoid fact Snv-aCnc
Display Name
Rheumatoid factor Qn (Syn fld)
Consumer Name Alpha
Rheumatoid factor, Synovial fluid

Basic Attributes

Class
SERO
Type
Laboratory
First Released
Version 1.0k
Last Updated
Version 2.73
Order vs. Observation
Both
Common US Lab Results Rank
17166

Member of these Groups

LG1205-6 Rheumatoid factor|ACnc|Pt|Synv fld

Language Variants Get Info

zh-CNChinese (China)
类风湿因子:任意型浓度:时间点:滑液:定量型:
nl-NLDutch (Netherlands)
reumafactor:eenheid/volume:moment:synoviaal vocht:kwantitatief:
et-EEEstonian (Estonia)
Reumatoidfaktor:Acnc:Pt:SynF:Qn:
fr-BEFrench (Belgium)
Facteur rhumatoïde:Concentration arbitraire:Temps ponctuel:Liquide synovial:Quantitatif:
fr-CAFrench (Canada)
Facteur rhumatoïde:Concentration arbitraire:Temps ponctuel:Liquide synovial:Quantitatif:
fr-FRFrench (France)
Facteurs rhumatoïdes:Arbitraire/Volume:Ponctuel:Liquide synovial:Numérique:
de-DEGerman (Germany)
Rheumafaktor:Arbiträre Konzentration:Zeitpunkt:Synovialflüssigkeit:Quantitativ:
el-GRGreek (Greece)
Ρευματοειδής παράγοντας:Αυθαίρετη συγκέντρωση:Χρονική στιγμή:Αρθρικό υγρό:Ποσοτική:
it-ITItalian (Italy)
Fattore reumatoide:ACnc:Pt:Liquido sinoviale:Qn:
ko-KRKorean (Korea, Republic of)
류마티스 인자:임의농도:검사시점:활액:정량:
pl-PLPolish (Poland)
czynnik reumatoidalny:Stężenie umowne:Punkt w czasie:Płyn maziowy:ilościowy:
pt-BRPortuguese (Brazil)
Fator reumatóide:ACnc:Pt:LiqSinov:Qn:
ru-RURussian (Russian Federation)
Ревматоидный фактор:ПроизвКонц:ТчкВрм:Синов ждк:Колич:
es-ARSpanish (Argentina)
factor reumatoideo:concentración arbitraria:punto en el tiempo:líquido sinovial:cuantitativo:
es-MXSpanish (Mexico)
Factor reumatoide:Concentración arbitraria:Punto temporal:Líquido sinovial:Cuantitativo:
es-ESSpanish (Spain)
Factor Reumatoide:Concentración arbitraria:Punto temporal:Líquido sinovial:Qn:
tr-TRTurkish (Turkey)
Romatoid faktör:SçKons:Zmlı:Snvy sv:Kant:

Example Units

Unit Source
IU/mL eCHN
[IU]/mL Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=13634-1