LOINC
Version 2.72

1096-7K Ag [Presence] on Red Blood CellsActive

Part Description

LP14926-7   K
Kell is highly polymorphic. It has two major codominant alleles, k and K, which result from a SNP (698C→T), and the corresponding k and K antigens differ by a single amino acid change (T193M). Mostly IgG antibodies, so IgM is uncommon. Anti-K does not bind complement. If hemolysis does occur, it is extravascular in nature. Anti-K can cause a severe hemolytic transfusion reaction and severe fetal anemia. In the RBC membrane, the Kell glycoprotein is covalently linked to the XK protein, a multipass membrane protein thought to have a role in transport. In the absence of XK, a condition called McLeod syndrome, Kell antigens are only weakly expressed and the RBCs are abnormal with spiky projections (acanthocytosis). Systemic findings include muscular dystrophy, cardiomyopathy, psychiatric disturbances, and neurological defects, such as loss of reflexes and movement disorders. The frequency of K antigens is 2% in Blacks, 9% in Caucasians, up to 25% in Arabs populations. Beck L, Blood groups and red cell antigens. NCBI Bookself [Internet Book], 2005. Source: National Library of Medicine, K

Fully-Specified Name

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

Additional Names

Short Name
K Ag RBC Ql
Display Name
K Ag Ql (RBC)
Consumer Name Alpha
K 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
93951-2 Rh antigens and K Ag panel - Blood

Language Variants Get Info

zh-CNChinese (China)
K 抗原:存在情况或阈值:时间点:红细胞:序数型:
nl-NLDutch (Netherlands)
K Ag:aanwezigheid:moment:erytrocyten:ordinaal:
et-EEEstonian (Estonia)
K antigeen:PrThr:Pt:RBC:Ord:
fr-BEFrench (Belgium)
K Ag:PrThr:Temps ponctuel:GR:Ordinal:
fr-CAFrench (Canada)
K , Ag:Présence-Seuil:Temps ponctuel:GR:Ordinal:
fr-FRFrench (France)
KEL1 (K) antigène:Présence/Seuil:Ponctuel:Érythrocytes:Qualitatif:
it-ITItalian (Italy)
K , Ag:PrThr:Pt:RBC:Ord:
ko-KRKorean (Korea, Republic of)
k 항원:임의농도:검사시점:적혈구:순위척도:
pt-BRPortuguese (Brazil)
K Ag:ACnc:Pt:Eritroc:Ord:
ru-RURussian (Russian Federation)
K Аг:PrThr:ТчкВрм:Эритроциты:Пор:
es-ARSpanish (Argentina)
[antígeno-] K [Ag]:concentración arbitraria:punto en el tiempo:eritrocitos:ordinal:
es-MXSpanish (Mexico)
K Ag:Presencia o umbral:Punto temporal:Eritrocitos:Ordinal:
es-ESSpanish (Spain)
K Antígeno:PrThr:Punto temporal:Glóbulos rojos:Ord:
tr-TRTurkish (Turkey)
K Ag:MevcEşik:Zmlı:Eritrosit:Srl:

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=1096-7