LOINC
Version 2.73

74040-7Influenza virus A N2 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

Fully-Specified Name

Component
Influenza virus A N2 RNA
Property
ThreshNum
Time
Pt
System
XXX
Scale
Qn
Method
Probe.amp.tar

Additional Names

Short Name
FLUAV N2 RNA Ct Spec Qn NAA+probe
Display Name
FLUAV N2 RNA NAA+probe (Specimen) [ThreshNum]
Consumer Name Alpha
Influenza A N2, Specimen

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 2.46
Last Updated
Version 2.69
Change Reason
Changed property from 'ThresNum' to clarify the property name.
Order vs. Observation
Both

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 型神经氨酸酶 N2 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 N2 RNA:drempelwaarde nummer:moment:XXX:kwantitatief:moleculaire techniek (PCR)
fr-FRFrench (France)
Influenza virus A N2 ARN:Cycle seuil:Ponctuel:Milieux divers:Numérique:PCR amplification de cible
de-DEGerman (Germany)
Influenza-Virus A N2 RNA:Ct-Wert:Zeitpunkt:XXX:Quantitativ:Zielfragmentamplifikation mit Sondendetektion
it-ITItalian (Italy)
Influenza virus A N2 RNA:Thresnum:Pt:XXX:Qn:Sonda.amp.tar
pt-BRPortuguese (Brazil)
Influenza vírus A N2 RNA::Pt:XXX:Qn:Sonda com limite de detecção da amplificação de alvo
es-MXSpanish (Mexico)
ARN del virus de la influenza A N2:ThreshNum:Punto temporal:XXX:Cuantitativo:Amplificación de ácidos nucleicos con detección de sonda
es-ESSpanish (Spain)
Neuraminidasa N2 del virus Influenza A RNA:ThreshNnum:Punto temporal:XXX:Qn:Sonda con amplificación dirigida
tr-TRTurkish (Turkey)
İnfluenza virüsü A N2 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

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=74040-7