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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.

LOINC Names Get Info

Fully-Specified Name
Influenza virus A N2 RNA:ThreshNum:Pt:XXX:Qn:Probe.amp.tar
Long Common Name
Influenza virus A N2 RNA [Cycle Threshold #] in Specimen by NAA with probe detection
Short Name
FLUAV N2 RNA Ct Spec Qn NAA+probe
Display Name
FLUAV N2 RNA NAA+probe (Specimen) [ThreshNum]
Consumer Name Alpha Get Info
Influenza A N2, Specimen

Part Model Get Info

  • Component
    Influenza virus A N2 RNA
    LP173654-7
    • Analyte
      Influenza virus A N2 RNA
      LP173654-7
      • Component Numerator
        Influenza virus A N2 RNA
        LP173654-7
        • Component Numerator Core
          Influenza virus A N2
          LP35184-8
        • Component Numerator Core Suffix
          RNA
          LP32423-3
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    ThreshNum
    LP188772-0
  • Time
    Pt
    LP6960-1
  • System
    XXX
    LP7735-6
    • System Core
      XXX
      LP7735-6
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    Probe.amp.tar
    LP6464-4

Basic Attributes

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

Member of these Panels

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

Member of these Groups Get Info

LOINC GroupGroup Name
LG32757-3Influenza virus

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Virus chřipky A N2 RNA:Prahová hodnota:Časový bod:XXX:Kvantitativní:Amplifikace nukleových kyselin s detekcí sondou
de-DEGerman (Germany)Influenza-Virus A N2 RNA:Ct-Wert:Zeitpunkt:XXX:Quantitativ:Zielfragmentamplifikation mit Sondendetektion
el-GRGreek (Greece)Ιός γρίπης A N2 RNA:ThreshNum:Pt:XXX:Qn:Ανιχνευτής.ενίσχυση.στόχου
Synonyms: A MICRO Pt Qn RNA ThreshNum XXX Ανιχνευτής Ανιχνευτής.ενίσχυση Ανιχνευτής.ενίσχυση.στόχου Ιός Ιός γρίπης Ιός γρίπης A Ιός γρίπης A N2
es-ESSpanish (Spain)Neuraminidasa N2 del virus Influenza A RNA:ThreshNnum:Punto temporal:XXX:Qn:Sonda con amplificación dirigida
Synonyms: Cuantitativo
es-MXSpanish (Mexico)ARN del virus de la influenza A N2:ThreshNum:Punto temporal:XXX:Cuantitativo:Amplificación de ácidos nucleicos con detección de sonda
fr-FRFrench (France)Influenza virus A N2 ARN:Cycle seuil:Ponctuel:Milieux divers:Numérique:PCR amplification de cible
it-ITItalian (Italy)Influenza virus A N2 RNA:Thresnum:Pt:XXX:Qn:Sonda.amp.tar
Synonyms: Limite di soglia Microbiologia Punto nel tempo (episodio) Sonda con amplificazione Sonda con amplificazione del target Sonda di DNA Virus dell''influenza Virus dell''influenza A Virus dell''infuenza A N2
nl-NLDutch (Netherlands)Influenzavirus A N2 RNA:drempelwaarde nummer:moment:XXX:kwantitatief:probe-detectie
Synonyms: probe.amp.tar
pl-PLPolish (Poland)Influenza wirus A N2 RNA:wartość progowa:punkt w czasie:XXX:ilościowy:sonda.amplifikacja.cel
Synonyms: amplifikacja kwasu nukleinowego z detekcją za pomocą sondy amplifikacja z detekcją za pomocą sondy Białko N2 wirusa grypy typu A RNA neuroaminidazy 2 wirusa grypy typu A Wirus grypy typ A
tr-TRTurkish (Turkey)İnfluenza virüsü A N2 RNA:EşikDeğ:Zmlı:XXX:Kant:Prob.amf.hdf
Synonyms: Eşik Değer
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
Synonyms: A 型 A 型流感;A 型流感病毒;FLUA;FLUAV;家禽鼠疫;流感 A;流感 A 型;流感甲型;流感病毒甲型;甲型流感;甲型流感病毒;瘟疫;禽流感;禽流行性感冒;禽疫;鸡瘟 A 型流感病毒神经氨酸酶 N2 型;FLUA NA N2;FLUA NA N2 型;FLUA 神经氨酸酶 N2 型;FLUAV NA N2;FLUAV NA N2 型;FLUAV 神经氨酸酶 N2 型;流感病毒甲型神经氨酸酶 N2 型;甲型流感病毒神经氨酸酶 N2 型 FLUV;Influ;列性感冒病毒;流行性感冒病毒 不明的;其他;将在相应消息内其他部分之中加以详细说明;未作详细说明的;未作说明的;未做说明的标本;未加规定的;未加说明的标本;杂项 传染毒;传染毒素;滤过性病原体;病毒类;过滤性病原体 借助扩增的探针方法;借助扩增的探针法;探针法.扩增 借助靶向扩增的探针方法;借助靶向扩增的探针法;探针法.扩增.靶向 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 微生物学;微生物学试验;微生物学试验（培养、DNA、抗原及抗体） 扩增型 扩增性 时刻;随机;随意;瞬间 核糖核酸;Ribonucleic acid 界值数;界限数;阀值数;临界值数;阈值循环数;阈值数;达到阈值时的循环圈数;荧光信号到达设定阈值时所经历的循环数;Ct 值;Cycle threshold;循环阈值 经过扩增的 脱氧核糖核酸探针

Example Units

UnitSource
{Ct_value}Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

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