LOINC
Version 2.67

49534-1Influenza virus B Ag [Presence] in Isolate by ImmunofluorescenceActive

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

Component
Influenza virus B Ag
Property
PrThr
Time
Pt
System
Isolate
Scale
Ord
Method
IF

Additional Names

Short Name
FLUBV Ag Islt Ql IF
Display Name
FLUBV Ag IF Ql (Isol)

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 2.22
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
Both

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

Member of these Groups

LG32757-3 Influenza virus

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:分离株:序数型:免疫荧光法
nl-NLDutch (NETHERLANDS)
Influenzavirus B Ag:aanwezigheid:moment:isolaat:ordinaal:immunofluorescentie
et-EEEstonian (ESTONIA)
B-gripi viirus antigeen:PrThr:Pt:Is:Ord:IF
fr-BEFrench (BELGIUM)
Virus de l'influenza B Ag:PrThr:Temps ponctuel:Isolat:Ordinal:Immunofluorescence
fr-CAFrench (CANADA)
Virus de l'influenza B , Ag:Présence-Seuil:Temps ponctuel:Isolat:Ordinal:Immunofluorescence
fr-FRFrench (FRANCE)
Influenza virus B Ag:Présence/Seuil:Ponctuel:Isolat:Qualitatif:Immunofluorescence
it-ITItalian (ITALY)
Influenza B, virus , Ag:PrThr:Pt:Isolato:Ord:IF
pt-BRPortuguese (BRAZIL)
Influenza vírus B Ag:ACnc:Pt:Isolado:Ord:Imunofluorescência
ru-RURussian (RUSSIAN FEDERATION)
Грипп вирус В Аг:PrThr:ТчкВрм:Изолят:Пор:ИФ
es-ESSpanish (SPAIN)
Virus Influenza B Antígeno:PrThr:Punto temporal:Aislado:Ord:Inmunofluorescencia (IF)
tr-TRTurkish (TURKEY)
İnfluenza virüsü B Ag:MevcEşik:Zmlı:İzolat:Srl:IF

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=49534-1