74038-1Influenza virus A H1 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
LP35168-1 Influenza virus A H1
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
- Component
- Influenza virus A H1 RNA
- Property
- ThreshNum
- Time
- Pt
- System
- XXX
- Scale
- Qn
- Method
- Probe.amp.tar
Additional Names
- Short Name
- FLUAV H1 RNA Ct Spec Qn NAA+probe
- Display Name
- FLUAV H1 RNA NAA+probe (Specimen) [ThreshNum]
- Consumer Name Alpha
- Influenza A H1, 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 型血凝素 H1 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 H1 RNA:
drempelwaarde nummer: moment: XXX: kwantitatief: moleculaire techniek (PCR) - fr-FRFrench (France)
- Influenza virus A H1 ARN:
Cycle seuil: Ponctuel: Milieux divers: Numérique: PCR amplification de cible - it-ITItalian (Italy)
- Influenza A H1, virus RNA:
Thresnum: Pt: XXX: Qn: Sonda.amp.tar - pt-BRPortuguese (Brazil)
- Influenza vírus A H1 RNA:
: Pt: XXX: Qn: Sonda com limite de detecção da amplificação de alvo - es-MXSpanish (Mexico)
- ARN del virus de la influenza A H1:
ThreshNum: Punto temporal: XXX: Cuantitativo: Amplificación de ácidos nucleicos con detección de sonda - es-ESSpanish (Spain)
- Hemaglutinina H1 del virus Influenza A RNA:
ThreshNnum: Punto temporal: XXX: Qn: Sonda con amplificación dirigida - tr-TRTurkish (Turkey)
- İnfluenza virüsü A H1 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=74038-1
LOINC Copyright
Copyright © 2022 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright