LOINC
Version 2.73

15204-1Rheumatoid factor [Titer] in Serum by NephelometryActive

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
Qn
Method
Nephelometry

Additional Names

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

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
16359

Member of these Groups

LG3433-2 Rheumatoid factor|Titr|Pt|ANYBldSerPl

Language Variants Get Info

zh-CNChinese (China)
类风湿因子:滴定度:时间点:血清:定量型:浊度分析法
nl-NLDutch (Netherlands)
reumafactor:titer:moment:serum:kwantitatief:nefelometrie
et-EEEstonian (Estonia)
Reumatoidfaktor:Titr:Pt:S:Qn:Nefelomeetria
fr-BEFrench (Belgium)
Facteur rhumatoïde:Titre:Temps ponctuel:Sérum:Quantitatif:Néphélométrie
fr-CAFrench (Canada)
Facteur rhumatoïde:Titre:Temps ponctuel:Sérum:Quantitatif:Néphélométrie
fr-FRFrench (France)
Facteurs rhumatoïdes:Titre:Ponctuel:Sérum:Numérique:Néphélémétrie
de-DEGerman (Germany)
Rheumafaktor:Titer:Zeitpunkt:Serum:Quantitativ:Nephelometrie
it-ITItalian (Italy)
Fattore reumatoide:Titr:Pt:Siero:Qn:Nefelometria
ko-KRKorean (Korea, Republic of)
류마티스 인자:역가:검사시점:혈청:정량:혼탁계측기
pl-PLPolish (Poland)
czynnik reumatoidalny:Miano:Punkt w czasie:Surowica:ilościowy:Nefelometria
pt-BRPortuguese (Brazil)
Fator reumatóide:Título:Pt:Soro:Qn:Nefelometria
ru-RURussian (Russian Federation)
Ревматоидный фактор:Титр:ТчкВрм:Сыв:Колич:Нефелометрия
es-ARSpanish (Argentina)
factor reumatoideo:factor de dilución (titulación):punto en el tiempo:suero:cuantitativo:nefelometría
es-MXSpanish (Mexico)
Factor reumatoide:Título:Punto temporal:Suero:Cuantitativo:Nefelometría
es-ESSpanish (Spain)
Factor Reumatoide:Titulo / Factor de dilución:Punto temporal:Suero:Qn:Nefelometría
tr-TRTurkish (Turkey)
Romatoid faktör:Titr:Zmlı:Ser:Kant:Nefelometri

Example Units

Unit Source
{titer} Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=15204-1