Version 2.80

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

LP7238-1   Body fld
The LOINC "Body fld" System represents body fluids other than serum, plasma, blood, urine, and cerebrospinal fluid. When a LOINC term with the System "Body fld" is used, the specific specimen source or body fluid type should be reported elsewhere with the result. Where more specific terms for pleural, peritoneal, synovial fluid, etc. exist, we encourage you to use the more specific terms. In contrast to "Body fld", the System "Asp" in LOINC represents the fluid withdrawn during an aspiration procedure from an abnormal collection of fluid, such as from an abscess or cyst. "Asp" is used for abnormal fluid collections that are aspirated, while "Body fld" is used for named body fluids, such as synovial fluid or peritoneal fluid, that are not inherently pathologic. Source: Regenstrief LOINC

Fully-Specified Name

Component
Rheumatoid factor
Property
PrThr
Time
Pt
System
Body fld
Scale
Ord
Method
LA

Additional Names

Long Common Name
Rheumatoid factor [Presence] in Body fluid by Latex agglutination
Short Name
Rheumatoid fact Fld Ql LA
Display Name
Rheumatoid factor LA Ql (Body fld)
Consumer Name Alpha Get Info
Rheumatoid factor, Body fluid

Basic Attributes

Class
SERO
Type
Laboratory
First Released
Version 2.17
Last Updated
Version 2.56 (MIN)
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 Get Info

LOINC Group Group Name
LG9624-0 Rheumatoid factor|PrThr|Pt|Body fld

Language Variants Get Info

Tag Language Translation
el-GR Greek (Greece) Ρευματοειδής παράγοντας:PrThr:Pt:Σωματικό υγρό:Ord:LA
Synonyms: PrThr Ρευματοειδής παράγοντας
es-ES Spanish (Spain) Factor Reumatoide:PrThr:Punto temporal:Fluido corporal:Ord:Aglutinación de latex
es-MX Spanish (Mexico) Factor reumatoide:Presencia o umbral:Punto temporal:Fluído corporal:Ordinal:Aglutinación de látex
et-EE Estonian (Estonia) Reumatoidfaktor:PrThr:Pt:Fx:Ord:LA
Synonyms: Järgarvuline Juhuslik Kehavedelik Lateksaglutinatsioon
fr-CA French (Canada) Facteur rhumatoïde:Présence-Seuil:Temps ponctuel:Liquide biologique:Ordinal:Agglutination au latex
fr-FR French (France) Facteurs rhumatoïdes:Présence/Seuil:Ponctuel:Liquide biologique:Qualitatif:Agglutination latex
fr-BE French (Belgium) Facteur rhumatoïde:PrThr:Temps ponctuel:Liquide biologique:Ordinal:Agglutination au latex
Synonyms: RF
it-IT Italian (Italy) Fattore reumatoide:PrThr:Pt:Liquido corporeo:Ord:LA
Synonyms: Agglutinazione al lattice FR Liquido corporeo Presenza o Soglia Punto nel tempo (episodio) Sierologia (anticorpi e la maggior parte degli ant
nl-NL Dutch (Netherlands) reumafactor:aanwezigheid:moment:lichaamsvocht:ordinaal:latexagglutinatie
Synonyms: LA
pl-PL Polish (Poland) Czynnik reumatoidalny:granica wykrywalności:punkt w czasie:płyn ustrojowy:półilościowy:aglutynacja lateksowa
pt-BR Portuguese (Brazil) Fator reumatóide:ACnc:Pt:LiqOrg:Ord:Aglutinação em látex
Synonyms: ; Rheumatoid fact; RF; Arbitrary concentration; Point in time; Random; BF; Fluid; Body fluid; FLU; Fl; Ql; Ordinal; QL; Qualitative; Qual; Screen; Latex agglutination; Fac; Fact; Serology
ru-RU Russian (Russian Federation) Ревматоидный фактор:PrThr:ТчкВрм:Тело ждк:Пор:ЛА
Synonyms: Латекс-агглютинация Порядковый Тела жидкость Точка во времени;Момент
tr-TR Turkish (Turkey) Romatoid faktör:MevcEşik:Zmlı:Vücut sv:Srl:LA
Synonyms: Mevcut
zh-CN Chinese (China) 类风湿因子:存在情况或阈值:时间点:体液:序数型:胶乳凝集试验法
Synonyms: RF;Rheumatoid Factor 乳胶凝集试验;凝集试验.胶乳;凝集试验法.胶乳;胶乳凝集试验;胶乳颗粒凝集;胶乳颗粒凝集法;胶乳颗粒凝集试验;胶乳颗粒凝集试验法;颗粒凝集.胶乳;颗粒凝集法.胶乳;颗粒凝集试验.胶乳;颗粒凝集试验法.胶乳 依次型;分类顺序型;定性的;序数型（或称等级型）;性质上的;有序型;有序性分类应答;有序性分类结果;秩次型;等级型;筛查;顺序型 因素 存在情况;存在;存在与否;是否存在;阈值;界值;界限;阀值;临界值;存在情况（存在、存在与否、是否存在）或阈值（界值、界限、阀值、临界值） 时刻;随机;随意;瞬间 物体 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

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=45156-7