LOINC
Version 2.73

5298-5Rheumatoid factor [Presence] in Serum by Sheep Cell AgglutinationActive

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
PrThr
Time
Pt
System
Ser
Scale
Ord
Method
Sheep cell aggl

Additional Names

Short Name
Rheumatoid fact Ser Ql Shp Aggl
Display Name
Rheumatoid factor Sheep Cell Agglutination Ql (S)
Consumer Name Alpha
Rheumatoid factor, Blood

Basic Attributes

Class
SERO
Type
Laboratory
First Released
Version 1.0
Last Updated
Version 2.56
Change Reason
The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.
Order vs. Observation
Both

Member of these Groups

LG14559-5 Rheumatoid factor|PrThr|Pt|ANYBldSerPl

Language Variants Get Info

zh-CNChinese (China)
类风湿因子:存在情况或阈值:时间点:血清:序数型:凝集试验法.绵羊红细胞
nl-NLDutch (Netherlands)
reumafactor:aanwezigheid:moment:serum:ordinaal:schapencelagglutinatie
fr-BEFrench (Belgium)
Facteur rhumatoïde:PrThr:Temps ponctuel:Sérum:Ordinal:Agglutination de globules rouges de mouton
fr-CAFrench (Canada)
Facteur rhumatoïde:Présence-Seuil:Temps ponctuel:Sérum:Ordinal:Agglutination de globules rouges de mouton
fr-FRFrench (France)
Facteurs rhumatoïdes:Présence/Seuil:Ponctuel:Sérum:Qualitatif:Agglutination cellules de mouton
de-DEGerman (Germany)
Rheumafaktor:Nachweis oder Schwellenwert:Zeitpunkt:Serum:Ordinal:Schafzellagglutination
it-ITItalian (Italy)
Fattore reumatoide:PrThr:Pt:Siero:Ord:Eritrociti di pecora, agglutinazione
ko-KRKorean (Korea, Republic of)
류마티스 인자:임의농도:검사시점:혈청:순위척도:양 적혈구 응집
pl-PLPolish (Poland)
czynnik reumatoidalny:obecność lub wartość progowa:Punkt w czasie:Surowica:Porządkowy:Test aglutynacji komórek owiec
pt-BRPortuguese (Brazil)
Fator reumatóide:ACnc:Pt:Soro:Ord:Aglutinação em hemácias de carneiro
es-ARSpanish (Argentina)
factor reumatoideo:concentración arbitraria:punto en el tiempo:suero:ordinal:aglutinación de eritrocitos de carnera
es-MXSpanish (Mexico)
Factor reumatoide:Presencia o umbral:Punto temporal:Suero:Ordinal:Aglutinación de células de ovino
es-ESSpanish (Spain)
Factor Reumatoide:PrThr:Punto temporal:Suero:Ord:Aglutinación con células de carnero
tr-TRTurkish (Turkey)
Romatoid faktör:MevcEşik:Zmlı:Ser:Srl:Koyun hücresi aggl

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=5298-5