LOINC
Version 2.71

48509-4Influenza virus A and B RNA [Identifier] in Specimen by NAA with probe detectionActive

Part Description

LP36662-2   Influenza virus A & 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. Aquatic birds harboring avian IAV are the likely natural reservoir for all known IAV subtypes and are probably the original source of all human pandemic IAV strains. IAV maintained in wild birds have been associated with stable host switch events to novel hosts including most often to domestic poultry but also to horses, swine, toothed whales and humans, among other species. Although influenza virus B has been isolated from seals, type B is isolated almost always from humans. Influenza C virus has been isolated from pigs and dogs. While influenza B and C virus also cause illness in humans, host switch events and high mutation rates among IAV types causes respiratory infections in humans ranging from asymptomatic to fatal and are the cause of the influenza pandemics in the 20th and 21st centuries. Pandemics are attributed to "novel" viruses which possess a viral hemagglutinin (HA) to which humans do not have immunity. [PMID:25812763] [CDC:flu/about/viruses/types] Source: Regenstrief LOINC

Fully-Specified Name

Component
Influenza virus A & B RNA
Property
Prid
Time
Pt
System
XXX
Scale
Nom
Method
Probe.amp.tar

Additional Names

Short Name
FLUAV + FLUBV RNA Spec NAA+probe
Display Name
FLUAV and FLUBV RNA NAA+probe Nom (Specimen)
Consumer Name Alpha
Influenza A and B, Specimen

Example Answer List LL958-0

Source: Association of Public Health Laboratories

Answer Code Score Answer ID
Not detected/negative LA13549-3
Influenza A virus Copyright http://snomed.info/sct ID:407479009 Influenza A virus (organism) LA11919-0
Influenza B virus Copyright http://snomed.info/sct ID:407480007 Influenza B virus (organism) LA13543-6
Inconclusive Copyright http://snomed.info/sct ID:419984006 Inconclusive (qualifier value) LA9663-1
Influenza A virus not detected, Influenza B virus inconclusive LA13544-4
Influenza B virus not detected, Influenza A virus inconclusive LA13545-1
Specimen unsatisfactory for evaluation Copyright http://snomed.info/sct ID:125154007 Specimen unsatisfactory for evaluation (finding) LA13548-5
Test not performed Copyright http://snomed.info/sct ID:262008008 Not performed (qualifier value) LA13546-9

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 2.21
Last Updated
Version 2.69
Change Reason
Corrected Component from "Influenza virus A+B" to "Influenza virus A & B" because this term is Nominal, not Ordinal, and represents assays that can identify and differentiate between A and B.
Order vs. Observation
Both
Common Orders Rank
201

Member of these Groups

LG32757-3 Influenza virus

Language Variants Get Info

zh-CNChinese (China)
流感病毒 A 型与 B 型 RNA:存在与否或特征标识:时间点:XXX:名义型:探针法.基因扩增.靶向
nl-NLDutch (Netherlands)
Influenzavirus A & B RNA:identificator:moment:XXX:nominaal:moleculaire techniek (PCR)
fr-BEFrench (Belgium)
Virus de l'influenza A & B ARN:Présence ou identité:Temps ponctuel:XXX:Nominal:Sonde avec amplification de la cible
fr-CAFrench (Canada)
Virus de l'influenza A & B , ARN:Présence ou identité:Temps ponctuel:XXX:Nominal:Sonde avec amplification de la cible
fr-FRFrench (France)
Influenza virus A et B ARN:Identification:Ponctuel:Milieux divers:Résultat nominal:PCR amplification de cible
it-ITItalian (Italy)
Influenza A & B, virus RNA:Prid:Pt:XXX:Nom:Sonda.amp.tar
pt-BRPortuguese (Brazil)
Influenza vírus A+B RNA:Ident:Pt:XXX:Nom:Sonda com limite de detecção da amplificação de alvo
ru-RURussian (Russian Federation)
Грипп вирус A & B РНК:ПрИд:ТчкВрм:XXX:Ном:Проба.усил.миш
es-ESSpanish (Spain)
Virus de la gripe A y B RNA:Presencia o identidad:Punto temporal:XXX:Nom:Sonda con amplificación dirigida
tr-TRTurkish (Turkey)
İnfluenza virüsü A ve B RNA:MevcKimlik:Zmlı:XXX:Snf:Prob.amf.hdf

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=48509-4