LOINC
Version 2.72

88049-2P2 phenotype [Presence] on Red Blood CellsActive

Part Description

LP264210-8   P2 phenotype
P and P super little k (Pk) antigens are expressed on almost all red blood cells. The Pk antigen is the precursor to the globotype glycosphingolipids and consists of a terminal galactose that is added to α 1,4 galactosyltransferase 1. The P antigen is formed when β 1,3 N-acetylgalactosaminyltransferase I adds β->3 N-acetylgalactosamine to the terminal galactose of Pk. The P1 antigen belongs to the neolacto family of glycosphingolipids rather than the globo family to which P and Pk antigens belong. The P1 or P2 phenotype is expressed on over 99% of donor red cells. Both P1 and P2 synthesize P and Pk and vary only in the expression of the P1 antigen. P1 phenotype is (P1+) and P2 phenotype is (P1-). The two rare null phenotypes are the Pk and little p phenotypes. The Pk phenotype is missing the P antigen and the little p phenotype is missing both the P and the Pk antigens.[AABB Technical Manual, 18th edition, pp309-311] Source: Regenstrief LOINC

Fully-Specified Name

Component
P2 phenotype
Property
PrThr
Time
Pt
System
RBC
Scale
Ord
Method

Additional Names

Short Name
P2 phenotype RBC Ql
Display Name
P2 phenotype Ql (RBC)
Consumer Name Alpha
P2 phenotype, Red blood cells

Example Answer List LL744-4

Source: Regenstrief Institute

Answer Code Score Answer ID
Detected LA11882-0
Not detected LA11883-8

Basic Attributes

Class
BLDBK
Type
Laboratory
First Released
Version 2.63
Last Updated
Version 2.63
Order vs. Observation
Both

Language Variants Get Info

zh-CNChinese (China)
P2 表型:存在情况或阈值:时间点:红细胞:序数型:
fr-FRFrench (France)
P2 phénotype:Présence/Seuil:Ponctuel:Érythrocytes:Qualitatif:
de-DEGerman (Germany)
P2-Phänotyp:Nachweis oder Schwellenwert:Zeitpunkt:Erythrozyten:Ordinal:
it-ITItalian (Italy)
P2, fenotipo:PrThr:Pt:RBC:Ord:
es-MXSpanish (Mexico)
Fenotipo P2:Presencia o umbral:Punto temporal:Eritrocitos:Ordinal:
es-ESSpanish (Spain)
Fenotipo P2:PrThr:Punto temporal:Glóbulos rojos:Ord:

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=88049-2