Version 2.73

74039-9Influenza virus A H3 RNA [Cycle Threshold #] in Specimen by NAA with probe detectionActive

Term Description

The quantitative cross/cycle threshold (Ct) value may be reported for real-time PCR-based assays. The value is defined by the number of PCR cycles required for the fluorescent signal of a given product (targeted RNA) to cross the threshold (i.e. exceed background level). In general, the lower the Ct value, the greater the amount of targeted nucleic acid and vice versa. The interpretation (e.g. positive, negative, indeterminate) is determined based on a cut-off value. The submitter's lab reports the interpretation in OBX.8 segment and the specimen type in SPM.4 field of HL7 messaging.
Source: Regenstrief LOINC

Part Description

LP35176-4   Influenza virus A H3
The influenza virus A (FLUVA) genome is composed of eight gene segments (PB2, PB1, PA, HA, NP, NA, M, NS1) that code for 11 proteins. Two of the genes, hemagglutinin (HA) and neuraminidase (NA), determine the structure of the two primary surface proteins of influenza viruses. The HA and NA gene sequences are used to determine the Influenza virus subtype. Currently there are 16 subtypes of HA and 9 subtypes of NA known, but only H 1, 2 and 3, and N 1 and 2 are commonly found in humans.[PMID:17458769] The M gene segment, which encodes two matrix proteins (M1 and M2), may also be used as a target in PCR-based assays for detection of FLUVA in various specimens. Source: Regenstrief LOINC

Fully-Specified Name

Influenza virus A H3 RNA

Additional Names

Short Name
FLUAV H3 RNA Ct Spec Qn NAA+probe
Display Name
FLUAV H3 RNA NAA+probe (Specimen) [ThreshNum]
Consumer Name Alpha
Influenza A H3, Specimen

Basic Attributes

First Released
Version 2.46
Last Updated
Version 2.69
Order vs. Observation

Member of these Panels

LOINC Long Common Name
97733-0 Influenza virus types A and B and subtypes RNA panel - Specimen by NAA with probe detection

Member of these Groups

LG32757-3 Influenza virus

Language Variants Get Info

zh-CNChinese (China)
流感病毒 A 型血凝素 H3 型 RNA:阈值循环圈数:时间点:XXX:定量型:探针法.基因扩增.靶向
nl-NLDutch (Netherlands)
Influenzavirus A H3 RNA:drempelwaarde nummer:moment:XXX:kwantitatief:moleculaire techniek (PCR)
fr-FRFrench (France)
Influenza virus A H3 ARN:Cycle seuil:Ponctuel:Milieux divers:Numérique:PCR amplification de cible
de-DEGerman (Germany)
Influenza-Virus A H3 RNA:Ct-Wert:Zeitpunkt:XXX:Quantitativ:Zielfragmentamplifikation mit Sondendetektion
it-ITItalian (Italy)
Influenza A H3, virus RNA:Thresnum:Pt:XXX:Qn:Sonda.amp.tar
pt-BRPortuguese (Brazil)
Influenza vírus A H3 RNA::Pt:XXX:Qn:Sonda com limite de detecção da amplificação de alvo
es-MXSpanish (Mexico)
ARN del virus de la influenza A H3:ThreshNum:Punto temporal:XXX:Cuantitativo:Amplificación de ácidos nucleicos con detección de sonda
es-ESSpanish (Spain)
Hemaglutinina H3 del virus Influenza A RNA:ThreshNnum:Punto temporal:XXX:Qn:Sonda con amplificación dirigida
tr-TRTurkish (Turkey)
İnfluenza virüsü A H3 RNA:EşikDeğ:Zmlı:XXX:Kant:Prob.amf.hdf

Example Units

Unit Source
{Ct_value} Example UCUM Units

LOINC FHIR® API Example - CodeSystem Request Get Info