93934-8
K Ag [Presence] on Red Blood Cells --during infancy
Active
Term Description
During the first 4-6 months of life reverse grouping on infants may reflect maternal antibodies and it may take several months for newborns to develop their own antibodies against the A and B antigens not present on their own cells. Because of this, blood typing of infants often involves only forward grouping. In some jurisdictions, legislation dictates confirmation of blood grouping after a certain age (6 months in France).
Source: Regenstrief LOINC
Part Descriptions
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
LP412133-3 during infancy BldBk
During the first 4-6 months of life reverse grouping on infants may reflect maternal antibodies and it may take several months for newborns to develop their own antibodies against the A and B antigens not present on their own cells. Because of this, blood typing of infants often involves only forward grouping. In some jurisdictions, legislation dictates confirmation of blood grouping after a certain age (6 months in France).
Source: Regenstrief LOINC
Fully-Specified Name
- Component
- K Ag^during infancy
- Property
- PrThr
- Time
- Pt
- System
- RBC
- Scale
- Ord
- Method
Additional Names
- Short Name
- K Ag infant RBC Ql
- Display Name
- K Ag during infancy Ql (RBC)
- Consumer Name Alpha Get Info
- K antigen During Infancy, Red blood cells
Example Answer List: LL5464-4
Source: Regenstrief LOINCAnswer | Code | Score | Answer ID |
---|---|---|---|
Double population Representing a mixed population of 2 types |
LA30465-1 | ||
PositiveCopyright http://snomed.info/sct ID:10828004 Positive (qualifier value) | LA6576-8 | ||
NegativeCopyright http://snomed.info/sct ID:260385009 Negative (qualifier value) | LA6577-6 |
Basic Attributes
- Class
- BLDBK
- Type
- Laboratory
- First Released
- Version 2.67
- Last Updated
- Version 2.67
- Order vs. Observation
- Both
Member of these Panels
LOINC | Long Common Name |
---|---|
93939-7 | Rh antigens and K Ag during infancy panel - Blood |
Language Variants Get Info
Tag | Language | Translation |
---|---|---|
es-MX | Spanish (Mexico) | K Ag ^ durante la infancia: |
es-ES | Spanish (Spain) | K Antígeno^Durante la infancia: |
fr-FR | French (France) | KEL1 (K) antigène < 6 mois: |
it-IT | Italian (Italy) | K, Ag^durante l'infanzia: Synonyms: Banca del sangue Globuli rossi Presenza o Soglia Punto nel tempo (episodio) |
zh-CN | Chinese (China) | K 抗原^婴儿期期间: Synonyms: Ag K 型 K 抗原 RBC; |
LOINC Terminology Service (API) using HL7® FHIR® Get Info
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- CodeSystem lookup
- https:
//fhir.loinc.org/CodeSystem/$lookup?system=http: //loinc.org&code=93934-8
Third Party Copyright
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