LOINC
Version 2.67

74690-9Du Ag [Presence] in Cord red blood cellsActive

Part Descriptions

LP17980-1   D little u
D^u is the D antigen that is expressed only with indirect antihuman testing. Harmening D, Clahoun L, Polesky H. Modern Blood Banking and Transfusion Practices (2nd Ed.) Philadephia:FA Davis Company; 1998:110. Source: Regenstrief Institute

LP17980-1   D little u
In serologic testing, D positive blood is easily identified. Units which are D negative are often retested to rule out a weaker reaction. The weak D phenotype (D^u) is characterized by negative reaction with anti-D reagent at immediate spin (IS), negative reaction after 37C incubation, and positive reaction at anti-human globulin (AHG) phase. Weak D testing is done on all prenatal patients and candidates for Rh immune globulin. Testing may also be done on Rh negative donors to ensure they are truly D negative as well as Rh negative candidates for transfusion. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, Weak D phenotype

Fully-Specified Name

Component
D little u Ag
Property
PrThr
Time
Pt
System
RBCCo
Scale
Ord
Method

Additional Names

Short Name
Du Ag RBCCo Ql
Display Name
Du Ag Ql (Cord RBC)

Basic Attributes

Class
BLDBK
Type
Laboratory
First Released
Version 2.48
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
Observation

Example Answer List LL360-9

Source: Regenstrief Institute

Answer Code Score Answer ID
Positive Copyright http://snomed.info/sct ID:10828004 Positive (qualifier value) LA6576-8
Negative Copyright http://snomed.info/sct ID:260385009 Negative (qualifier value) LA6577-6

Language Variants Get Info

zh-CNChinese (CHINA)
Du 抗原:存在情况或阈值:时间点:脐带血红细胞:序数型:
nl-NLDutch (NETHERLANDS)
D kleine u Ag:aanwezigheid:moment:erytrocyten uit navelstrengbloed:ordinaal:
et-EEEstonian (ESTONIA)
Du antigeen:PrThr:Pt:RBCCo:Ord:
fr-BEFrench (BELGIUM)
D petit u Ag:PrThr:Temps ponctuel:GR de cordon:Ordinal:
fr-CAFrench (CANADA)
D petit u , Ag:Présence-Seuil:Temps ponctuel:GR de cordon:Ordinal:
fr-FRFrench (FRANCE)
RHw1 (Du) antigène:Présence/Seuil:Ponctuel:Érythrocytes de cordon:Qualitatif:
it-ITItalian (ITALY)
D u minuscola , Ag:PrThr:Pt:RBCCo:Ord:
pt-BRPortuguese (BRAZIL)
ru-RURussian (RUSSIAN FEDERATION)
D малое u Аг:PrThr:ТчкВрм:ЭритроцитыП:Пор:
es-ESSpanish (SPAIN)
Du Antígeno:PrThr:Punto temporal:Glóbulos rojos de sangre de cordón:Ord:
tr-TRTurkish (TURKEY)
D küçük u Ag:MevcEşik:Zmlı:EritKord:Srl:

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=74690-9