LOINC
Version 2.73

5297-7Rheumatoid factor [Presence] in Serum by Latex 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
LA

Additional Names

Short Name
Rheumatoid fact Ser Ql LA
Display Name
Rheumatoid factor LA Ql (S)
Consumer Name Alpha
Rheumatoid factor, Blood

Basic Attributes

Class
SERO
Type
Laboratory
First Released
Version 1.0
Last Updated
Version 2.73
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
Common US Lab Results Rank
1963

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:胶乳凝集试验法
nl-NLDutch (Netherlands)
reumafactor:aanwezigheid:moment:serum:ordinaal:latexagglutinatie
et-EEEstonian (Estonia)
Reumatoidfaktor:PrThr:Pt:S:Ord:LA
fr-BEFrench (Belgium)
Facteur rhumatoïde:PrThr:Temps ponctuel:Sérum:Ordinal:Agglutination au latex
fr-CAFrench (Canada)
Facteur rhumatoïde:Présence-Seuil:Temps ponctuel:Sérum:Ordinal:Agglutination au latex
fr-FRFrench (France)
Facteurs rhumatoïdes:Présence/Seuil:Ponctuel:Sérum:Qualitatif:Agglutination latex
de-DEGerman (Germany)
Rheumafaktor:Nachweis oder Schwellenwert:Zeitpunkt:Serum:Ordinal:Latexagglutination
el-GRGreek (Greece)
Ρευματοειδής παράγοντας:PrThr:Χρονική στιγμή:Ορός:Τακτική:Μέθοδος συγκόλλησης ανοσοσφαιριδίων latex
it-ITItalian (Italy)
Fattore reumatoide:PrThr:Pt:Siero:Ord:LA
ko-KRKorean (Korea, Republic of)
류마티스 인자:임의농도:검사시점:혈청:순위척도:라텍스 응집
pl-PLPolish (Poland)
czynnik reumatoidalny:obecność lub wartość progowa:Punkt w czasie:Surowica:Porządkowy:Aglutynacja lateksowa
pt-BRPortuguese (Brazil)
Fator reumatóide:ACnc:Pt:Soro:Ord:Aglutinação em látex
ru-RURussian (Russian Federation)
Ревматоидный фактор:PrThr:ТчкВрм:Сыв:Пор:ЛА
es-ARSpanish (Argentina)
factor reumatoideo:concentración arbitraria:punto en el tiempo:suero:ordinal:aglutinación de látex
es-MXSpanish (Mexico)
Factor reumatoide:Presencia o umbral:Punto temporal:Suero:Ordinal:Aglutinación de látex
es-ESSpanish (Spain)
Factor Reumatoide:PrThr:Punto temporal:Suero:Ord:Aglutinación de latex
tr-TRTurkish (Turkey)
Romatoid faktör:MevcEşik:Zmlı:Ser:Srl:LA
uk-UAUkraine (Ukrainian)
Ревматоїдний фактор:Наявність або Поріг:МоментЧасу:Сироватка:Порядково:Латекс аглютинація

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=5297-7