Version 2.72

80383-3Influenza virus B Ag [Presence] in Upper respiratory specimen by Rapid immunoassayActive

Term Description

This term was created for, but is not limited in use to, the Influenza B part of the bioMerieux bioNexia Influenza A+B test, which is intended for the qualitative detection and differentiation of Influenza type A and type B antigens in human nasopharyngeal samples. The results of the bioNexia assay should be read ten minutes after the sample is applied to the sample well.
Source: Regenstrief LOINC

Part Description

LP14240-3   Influenza virus B
Influenza virus from the family Orthomyxoviridae are enveloped negative-strand RNA viruses with segmented genomes containing seven to eight gene segments. Of the five genera in the family, only influenza A virus (IAV), influenza B and C viruses are medically relevant to humans. Influenza A and B viruses have a similar structure whereby these viruses each contain eight discrete single-stranded RNA gene segments, each encoding at least one protein. While having a close phylogenetic relationship, influenza virus types A and B manifest very differently. While IAV infects birds, humans and other mammals, influenza B only infects humans and seals. Although both viruses cause human respiratory infection seasonally in temperate climate regions and more continually in the tropics, influenza B is normally less prevalent and causes less severe disease than IAV viruses. Research is ongoing to determine the evolutionary and epidemiological factors that shape the genetic diversity of influenza B virus. [PMID:25812763] [CDC:flu/about/viruses/types] Source: Regenstrief LOINC

Fully-Specified Name

Influenza virus B Ag

Additional Names

Short Name
FLUBV Ag Upper resp Ql IA.rapid
Display Name
FLUBV Ag IA.rapid Ql (Upper resp)
Consumer Name Alpha
Influenza B (Flu B) antigen, Upper respiratory

Example Answer List LL744-4

Source: Regenstrief Institute

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

Basic Attributes

First Released
Version 2.54
Last Updated
Version 2.70
Change Reason
Release 2.70: SYSTEM: Updated from "Nph" to make the LOINC term consistent with the original intent to represent a manufacturer's test covering NPH washes and nose swabs, as well as to make it consistent across panel usage.; Previous Releases: Corrected System from "Nasopharynx", which is used for LOINC clinical terms, to "Nph", which is the form used for LOINC lab terms.; 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.; The EIA method, which was always intended to cover more than just enzyme-linked immunoassay and whose display name for the long common name has always been Immunoassay, was renamed IA in order to eliminate ambiguity about whether the method has a broader meaning than just enzyme-linked immunoassay. Likewise, EIA.rapid was renamed IA.rapid. These changes were approved by the Laboratory LOINC Committee in June 2016.
Order vs. Observation

Member of these Panels

LOINC Long Common Name
80381-7 Influenza virus A and B Ag panel - Upper respiratory specimen by Rapid immunoassay
97099-6 Influenza virus A and B and SARS-CoV-2 (COVID-19) Ag panel - Upper respiratory specimen by Rapid immunoassay
95942-9 Influenza virus A and B and SARS-CoV+SARS-CoV-2 (COVID-19) Ag panel - Upper respiratory specimen by Rapid immunoassay

Member of these Groups

LG32757-3 Influenza virus
LG34023-8 Influenza virus B Ag|PrThr|Sys:ANYResp

Language Variants Get Info

zh-CNChinese (China)
流感病毒 B 型 抗原:存在情况或阈值:时间点:呼吸道.上:序数型:免疫测定法.快速
nl-NLDutch (Netherlands)
Influenzavirus B Ag:aanwezigheid:moment:bovenste luchtwegen:ordinaal:immunoassay.sneltest
fr-FRFrench (France)
Influenza virus B Ag:Présence/Seuil:Ponctuel:Nasopharynx:Qualitatif:Immunoanalyse rapide
de-DEGerman (Germany)
Influenzavirus B Ag:Nachweis oder Schwellenwert:Zeitpunkt:Respirationstrakt.oberer:Ordinal:Immunoassay.schnell
it-ITItalian (Italy)
Influenza B, virus , Ag:PrThr:Pt:Sistema respiratorio.superiore:Ord:IA.rapido
es-MXSpanish (Mexico)
Virus de la influenza B Ag:Presencia o umbral:Punto temporal:Nasofaringe:Ordinal:Inmunoensayo rápido
es-ESSpanish (Spain)
Virus Influenza B Antígeno:PrThr:Punto temporal:Muestra respiratoria de vías altas:Ord:IA.rapid

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