LOINC
Version 2.72

6642-3Influenza virus A Leningrad Ab [Units/volume] in Serum by Hemagglutination inhibitionActive

Part Description

LP6304-2   HAI
The hemagglutination-inhibition assay (HAI) can be used to identify subtypes of hemagglutinin producing viruses, such as Influenza. HAI can also be used to identify the subtype-specificity of antibodies against the virus. Normally, Influenza's hemagglutinin glycoprotein binds to receptors on the surface of red blood cells, causing them to agglutinate. If antibodies specific to the virus are present in the patient sample, they will bind to the virus, which prevents the virus from binding to the red blood cells and therefore prevents agglutination. To determine which subtype of virus is present, a viral isolate is tested against a series of antibodies with known subtype specificities. Whichever antibody inhibits red cell agglutination identifies the viral subtype. Similarly, antibody specificity is identified by testing the patient sample against known virus subtypes. [PMID:24899416] Source: Regenstrief LOINC

Fully-Specified Name

Component
Influenza virus A Leningrad Ab
Property
ACnc
Time
Pt
System
Ser
Scale
Qn
Method
HAI

Additional Names

Short Name
FLUAV Lenin Ab Ser HAI-aCnc
Display Name
FLUAV Lenin Ab HAI Qn (S)
Consumer Name Alpha
Influenza A Lenin antibody, Blood

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 1.0g
Last Updated
Version 2.69
Order vs. Observation
Both

Member of these Groups

LG32757-3 Influenza virus

Language Variants Get Info

zh-CNChinese (China)
流感病毒 A 型 Leningrad 亚型 抗体:任意型浓度:时间点:血清:定量型:红细胞凝集抑制试验法
nl-NLDutch (Netherlands)
Influenzavirus A Leningrad As:eenheid/volume:moment:serum:kwantitatief:hemagglutinatieremming
et-EEEstonian (Estonia)
A-gripi viirus Leningrad antikehad:Acnc:Pt:S:Qn:HAI
fr-BEFrench (Belgium)
Virus influenza A Leningrad Ac:Concentration arbitraire:Temps ponctuel:Sérum:Quantitatif:Inhibition de l'hémagglutination
fr-CAFrench (Canada)
Virus influenza A Leningrad , Ac:Concentration arbitraire:Temps ponctuel:Sérum:Quantitatif:Inhibition de l'hémagglutination
fr-FRFrench (France)
Influenza virus A Leningrad Ac:Arbitraire/Volume:Ponctuel:Sérum:Numérique:Hémagglutination indirecte
it-ITItalian (Italy)
Influenza virus A Leningrado Ab:ACnc:Pt:Siero:Qn:HAI
ko-KRKorean (Korea, Republic of)
A형 인플루엔자 바이러스 레닌그라드 항체:임의농도:검사시점:혈청:정량:적혈구응집 억제
pt-BRPortuguese (Brazil)
Influenza vírus A Leningrado Ac:ACnc:Pt:Soro:Qn:Inibição da hemaglutinação
es-ARSpanish (Argentina)
[anticuerpo anti - ] virus influenza A Leningrado [Ac]:concentración arbitraria:punto en el tiempo:suero:cuantitativo:inhibición de la hemoaglutinación
es-MXSpanish (Mexico)
Virus de la influenza A Leningrado Ab:Concentración arbitraria:Punto temporal:Suero:Cuantitativo:Inhibición de la hemaglutinación
es-ESSpanish (Spain)
Virus Influenza A Leningrad Anticuerpos:Concentración arbitraria:Punto temporal:Suero:Qn:Inhibición de la Hemaglutinación
tr-TRTurkish (Turkey)
İnfluenza virüsü A Leningrad Ab:SçKons:Zmlı:Ser:Kant:HAI

Example Units

Unit Source
[arb'U]/mL Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=6642-3