Version 2.78

Part Description

LP15248-5   X little g super little a
Biochemical analyses have shown that the Xg^a antigen is located on a 27,000 molecular weight sialoglycoprotein. This protein is encoded for by a gene on the X chromosome at position Xp22-32. The Xg locus is one of the few genes on the X chromosome that are not subject to Lyonization, ie., random "switching off" in females of one of the X genes. Goodfellow and Tippett have observed an interesting association between the Xg^a antigen and CD99. They found that the CD99 antigen also showed variable expression which appeared to be related to sex. Individuals who are high expressors of CD99 are Xg(a+). Although there are Xg(a-), CD99 low expressors, no "null phenotype" has yet to be found. Since these two proteins may associate with each other in the red cell membrane, the null would presumably lack both the Xg and CD99 proteins. No disease association has been found with a particular Xg phenotype. Source: Serum, Cells and Rare Fluid Exchange, Xg group

Fully-Specified Name

Component
X little g super little a Ag
Property
PrThr
Time
Pt
System
RBC
Scale
Ord
Method

Additional Names

Short Name
Xg sup(a) Ag RBC Ql
Display Name
Xg sup(a) Ag Ql (RBC)
Consumer Name Alpha Get Info
Xg sup(a) antigen, Red blood cells

Basic Attributes

Class
BLDBK
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 Panels

LOINC Long Common Name
93914-0 Blood group antigens panel - Red Blood Cells

Language Variants Get Info

Tag Language Translation
es-AR Spanish (Argentina) [antígeno] X [minúscula] G [superíndice] [minúscula] A [Ag]:concentración arbitraria:punto en el tiempo:eritrocitos:ordinal:
es-ES Spanish (Spain) Xga Antígeno:PrThr:Punto temporal:Glóbulos rojos:Ord:
es-MX Spanish (Mexico) X poco g super poco a Ag:Presencia o umbral:Punto temporal:Eritrocitos:Ordinal:
et-EE Estonian (Estonia) Xg^a antigeen:PrThr:Pt:RBC:Ord:
Synonyms: Erütrotsüüdid Järgarvuline Juhuslik
fr-CA French (Canada) X petit g exposant petit a, Ag:Présence-Seuil:Temps ponctuel:GR:Ordinal:
fr-FR French (France) XG1 (Xga) antigène:Présence/Seuil:Ponctuel:Érythrocytes:Qualitatif:
fr-BE French (Belgium) X petit g exposant petit a Ag:PrThr:Temps ponctuel:GR:Ordinal:
Synonyms: Antigène
it-IT Italian (Italy) X g minuscola apice a, Ag:PrThr:Pt:RBC:Ord:
Synonyms: Banca del sangue Globuli rossi Presenza o Soglia Punto nel tempo (episodio) Xg^a
ko-KR Korean (Korea, Republic Of) Xg^a 항원:임의농도:검사시점:적혈구:순위척도:
nl-NL Dutch (Netherlands) X kleine g super kleine a Ag:aanwezigheid:moment:erytrocyten:ordinaal:
Synonyms: antigeen rode bloedcellen
pt-BR Portuguese (Brazil) X g pequeno a pequeno superior Ag:ACnc:Pt:Eritroc:Ord:
Synonyms: ; Xg sup(a); Xg^a; X (little g) (little a); Arbitrary concentration; Point in time; Random; Erythrocytes; Red blood corpusles; Red blood cells; Ql; Ordinal; QL; Qualitative; Qual; Screen; Antigen; Antigens; BLOOD BANK
ru-RU Russian (Russian Federation) X малое g супер малое a Аг:PrThr:ТчкВрм:Эритроциты:Пор:
Synonyms: Порядковый Точка во времени;Момент
tr-TR Turkish (Turkey) X küçük g süper küçük a Ag:MevcEşik:Zmlı:Eritrosit:Srl:
Synonyms: Antijen Mevcut RBC
zh-CN Chinese (China) Xg^a 抗原:存在情况或阈值:时间点:红细胞:序数型:
Synonyms: A 型 A 型抗原 Ag G 型 RBC;RBCS;红血球;红血细胞;赤血球 X little g super little a 型抗原 X little g super little a 抗原 X little g super little a;X little g super little a 型;Xg^a 型 Xg^a 型抗原 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 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 血库;血库检验;血库检验类;血库检验项目;血库检验项目类;血库类;血库试验;血库试验项目;血库试验项目类

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=1341-7