Version 2.73

39318-1Influenza virus A N8 neutralizing antibody [Presence] in Serum by Neutralization testActive

Part Descriptions

LP6416-4   Neut
In LOINC, the Method "Neut" represents the virus neutralization test (VNT), also called conventional VNT, which is a specific laboratory method that is used primarily for identifying whether neutralizing antibodies for the virus of interest are present in the patient sample. The VNT involves incubating patient serum with the virus of interest, and then inoculating onto cell culture. If neutralizing antibodies are present and the virus is neutralized, the cells will not be infected. If neutralizing antibodies are not present, the virus will infect the cells in the cell culture. [PMID:32170698] This method can also be used to identify specific virus serotypes or strains, by performing separate tests in which serum is incubated with each of the specific virus serotypes or strains of interest. [PMID:169804] Source: Regenstrief LOINC

LP207365-0   Ab.Neut
Neutralizing antibodies are antibodies that interfere with the interaction between the virus and its host cell receptor, therefore preventing infectivity. Neutralizing antibodies can be detected using a traditional VNT or other methods such as pseudovirus VNT and surrogate VNT. VNT and pseudovirus VNT use live virus (the actual virus or a recombinant virus that incorporates the viral antigen of interest, respectively) and cell culture to assess the virus-host interaction and whether neutralizing antibodies are present that block that interaction. Surrogate VNT (sVNT) does not use live virus but rather uses purified viral antigen and host cell receptor protein to mimic the same interaction. The sVNT method is currently (2021) represented in LOINC as IA, because it is an immunoassay-based method. Source: Regenstrief LOINC

Fully-Specified Name

Influenza virus A N8 Ab.Neut

Additional Names

Short Name
FLUAV N8 NAb Ser Ql Nt
Display Name
FLUAV N8 neut ab Neut test Ql (S)
Consumer Name Alpha
Influenza A N8 neutralizing antibody, Blood

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

Basic Attributes

First Released
Version 2.15
Last Updated
Version 2.72
Change Reason
Release 2.72: COMPONENT: Updated "Ab" to "Ab.Neut" since this test is detecting neutralizing antibodies.; Previous Releases: 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.; Updated Answer list type from NORMATIVE to EXAMPLE because the Answers in the list (Positive, Negative) are only examples of possible answers and not an exclusive list
Order vs. Observation

Member of these Groups

LG32757-3 Influenza virus

Language Variants Get Info

zh-CNChinese (China)
流感病毒 A 型神经氨酸酶 N8 型 抗体.中和:存在情况或阈值:时间点:血清:序数型:中和试验
nl-NLDutch (Netherlands)
Influenzavirus A N8 As.neutraliserend:aanwezigheid:moment:serum:ordinaal:neutralisatietest
fr-CAFrench (Canada)
N8 influenza type A Ac.neut:Présence-Seuil:Temps ponctuel:Sérum:Ordinal:Test de neutralisation
fr-FRFrench (France)
Influenza virus A N8 Ac:Présence/Seuil:Ponctuel:Sérum:Qualitatif:Neutralisation
it-ITItalian (Italy)
Influenza virus A N8 Ab.Neut:PrThr:Pt:Siero:Ord:Neut
ko-KRKorean (Korea, Republic of)
A형 인플루엔자 바이러스 뉴라민분해효소 N8 항체:임의농도:검사시점:혈청:순위척도:중화
pt-BRPortuguese (Brazil)
Influenza vírus A N8 Ac:ACnc:Pt:Soro:Ord:Teste de neutralização
es-MXSpanish (Mexico)
Virus de la influenza A N8 Ab:Presencia o umbral:Punto temporal:Suero:Ordinal:Prueba de neutralización
es-ESSpanish (Spain)
Neuraminidasa N8 del virus Influenza A Anticuerpos antineutrófilos:PrThr:Punto temporal:Suero:Ord:Prueba de neutralización

LOINC FHIR® API Example - CodeSystem Request Get Info