LOINC
Version 2.68

1021-5E Ag [Presence] on Red Blood CellsActive

Part Description

LP37963-3   E Ag
Rh is the most complex of the blood groups systems, encompassing over 45 distinct antigens. The most clinical important antigen, D or Rho, was first described in 1940 and is present in over 85% of the population. Those individuals who lack the D antigen are considered to be Rh negative.
The Rh antigens are encoded by two highly homologous and closely linked genes on the short arm of chromosome 1. The RHD gene codes for the D antigen, or most of its components; RhCE gene codes the Cc and Ee antigens or their variants. The majority of the antigens within this system represent products of gene cross-over, point mutations or deletions within one or both genes.
The Rh antigens appear to be expressed only on red blood cell and they appear early during red cell development. Antibodies against the Rh antigens have caused severe and fatal transfusion reactions and hemolytic disease of the newborn. Rh antigens have been implicated in many diseases such as auto-immune hemolytic anemia, auto-Rh antibodies. Collect: One 4 mL green (sodium or lithium heparin) or serum separator tube. Also acceptable: lavender or pink (EDTA). Source: Serum, Cells and Rare Fluid Exchange, Rh

Fully-Specified Name

Component
E Ag
Property
PrThr
Time
Pt
System
RBC
Scale
Ord
Method

Additional Names

Short Name
E Ag RBC Ql
Display Name
E Ag Ql (RBC)

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
93951-2 Rh antigens and K Ag panel - Blood

Language Variants Get Info

zh-CNChinese (CHINA)
E 抗原:存在情况或阈值:时间点:红细胞:序数型:
nl-NLDutch (NETHERLANDS)
E Ag:aanwezigheid:moment:erytrocyten:ordinaal:
et-EEEstonian (ESTONIA)
E antigeen:PrThr:Pt:RBC:Ord:
fr-BEFrench (BELGIUM)
E Ag:PrThr:Temps ponctuel:GR:Ordinal:
fr-CAFrench (CANADA)
E , Ag:Présence-Seuil:Temps ponctuel:GR:Ordinal:
fr-FRFrench (FRANCE)
RH3 (E) antigène:Présence/Seuil:Ponctuel:Érythrocytes:Qualitatif:
de-DEGerman (GERMANY)
E Ag:AKnz:Pkt:RBC:Ord:
it-ITItalian (ITALY)
E , Ag:PrThr:Pt:RBC:Ord:
ko-KRKorean (KOREA, REPUBLIC OF)
E 항원:임의농도:검사시점:적혈구:순위척도:
pt-BRPortuguese (BRAZIL)
E Ag:ACnc:Pt:Eritroc:Ord:
ru-RURussian (RUSSIAN FEDERATION)
E Аг:PrThr:ТчкВрм:Эритроциты:Пор:
es-ARSpanish (ARGENTINA)
antígeno E:concentración arbitraria:punto en el tiempo:eritrocitos:ordinal:
es-ESSpanish (SPAIN)
E Antígeno:PrThr:Punto temporal:Glóbulos rojos:Ord:
tr-TRTurkish (TURKEY)
E Ag:MevcEşik:Zmlı:Eritrosit:Srl:

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=1021-5