Version 2.77

Part Description

LP14239-5   Influenza virus A
Influenza viruses, 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 are medically relevant to humans. 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. The influenza virus life cycle begins with the binding of viral HA to host cell receptors. Endocytosis and HA-mediated fusion of the viral and cellular membranes occurs. Viral ribonucleoprotein complexes are released into the cytoplasm, travel to the nucleus, then are replicated and transcribed by the viral polymerase complex. The new viruses are formed and bud when the newly formed ribonucleicprotein complexes and structural proteins reach the plasma membrane. Further research is needed to better understand how IAVs switch hosts and the viral genetic changes that underlie human adaptation. IAV causes respiratory infections in humans ranging from asymptomatic to fatal. Pandemics are attributed to "novel" viruses which possess a viral hemagglutinin (HA) to which humans do not have immunity. PMID: 20542248 ] PMID: 25812763
Influenza viruses A and B are single-stranded RNA enveloped viruses belonging to the Orthomyxoviridae family. The symptoms of infection of Influenza A and B include fever, cough, sore throat, rhinorrhea, nasal congestion, headache, myalgia and malaise. Some patients may experience gastrointestinal symptoms including watery diarrhea, vomiting and abdominal pain. The influenza viruses spread rapidly in enclosed spaces with a documented rate of infection of 70% following a common source of exposure. Infection occurs in the respiratory epithelium in both the upper and lower respiratory tract, and the virus can be found in many specimen types, including nasal aspirates, nasal or nasopharyngeal swabs, throat swabs, sputum and tracheal aspirates. When infection rates reach epidemic proportions, hospitalization of children and elderly patients rises as does the mortality rates of elderly patients.(Manual of Clinical Microbiology, 11th edition, James H. Jorgensen; Karen C. Carroll; Guido Funke; Michael A Pfaller; Marie Louise Landry; Sandra S. Richter; David W. Warnock) Source: Regenstrief LOINC

Fully-Specified Name

Component
Influenza virus A RNA
Property
PrThr
Time
Pt
System
BAL
Scale
Ord
Method
Probe.amp.tar

Additional Names

Short Name
FLUAV RNA BAL Ql NAA+probe
Display Name
FLUAV RNA NAA+probe Ql (BAL)
Consumer Name Alpha Get Info
Influenza A (Flu A), Bronchoalveolar lavage specimen

Example Answer List: LL360-9

Source: Regenstrief Institute
Answer Code Score Answer ID
PositiveCopyright http://snomed.info/sct ID:10828004 Positive (qualifier value) LA6576-8
NegativeCopyright http://snomed.info/sct ID:260385009 Negative (qualifier value) LA6577-6

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 2.50
Last Updated
Version 2.63
Change Reason
The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.
Order vs. Observation
Both

Member of these Groups Get Info

LOINC Group Group Name
LG32757-3 Influenza virus
LG34064-2 Influenza virus A RNA|PrThr|Sys:ANYResp

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) Influenza-Virus A RNA:Nachweis oder Schwellenwert:Zeitpunkt:Bronchoalveoläre Lavage:Ordinal:Zielfragmentamplifikation mit Sondendetektion
es-ES Spanish (Spain) Virus Influenza A RNA:PrThr:Punto temporal:Lavado broncoalveolar:Ord:Sonda con amplificación dirigida
es-MX Spanish (Mexico) ARN del virus de la influenza A:Presencia o umbral:Punto temporal:Lavado broncoalveolar:Ordinal:Amplificación de ácidos nucleicos con detección de sonda
fr-CA French (Canada) Virus de l'influenza A , ARN:Présence-Seuil:Temps ponctuel:Lavage broncho-alvéolaire:Ordinal:Sonde avec amplification de la cible
fr-FR French (France) Influenza virus A ARN:Présence/Seuil:Ponctuel:Liquide bronchoalvéolaire:Qualitatif:PCR amplification de cible
fr-BE French (Belgium) Virus de l'influenza A ARN:PrThr:Temps ponctuel:Lavage broncho-alvéolaire:Ordinal:Sonde avec amplification de la cible
Synonyms: FLU A virus FLU virus
it-IT Italian (Italy) Influenza A, virus RNA:PrThr:Pt:BAL:Ord:Sonda.amp.tar
Synonyms: Lavaggio Bronco Alveolare Microbiologia Presenza o Soglia Punto nel tempo (episodio) Sonda con amplificazione Sonda con amplificazione del target Sonda di DNA Virus dell''influenza Virus dell''influenza A
nl-NL Dutch (Netherlands) Influenzavirus A RNA:aanwezigheid:moment:bronchoalveolaire wassing:ordinaal:probe-detectie
Synonyms: probe.amp.tar
ru-RU Russian (Russian Federation) Грипп вирус А РНК:PrThr:ТчкВрм:БАЛ:Пор:Проба.усил.миш
Synonyms: Бронхоальвеолярный лаваж ДНК проба;ДНК зонд Порядковый Проба с мишени усилением Точка во времени;Момент
tr-TR Turkish (Turkey) İnfluenza virüsü A RNA:MevcEşik:Zmlı:BAL:Srl:Prob.amf.hdf
Synonyms: Bronkoalveoler lavaj Mevcut
zh-CN Chinese (China) 流感病毒 A 型 RNA:存在情况或阈值:时间点:支气管肺泡灌洗液:序数型: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 RNA FLUA RNA FLUAV RNA FLUV;Influ;列性感冒病毒;流行性感冒病毒 传染毒;传染毒素;滤过性病原体;病毒类;过滤性病原体 依次型;分类顺序型;定性的;序数型(或称等级型);性质上的;有序型;有序性分类应答;有序性分类结果;秩次型;等级型;筛查;顺序型 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 存在情况;存在;存在与否;是否存在;阈值;界值;界限;阀值;临界值;存在情况(存在、存在与否、是否存在)或阈值(界值、界限、阀值、临界值) 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 支气管肺泡洗液 时刻;随机;随意;瞬间 核糖核酸;Ribonucleic acid 流感病毒甲型 RNA 甲型流感病毒 RNA 经过扩增的 脱氧核糖核酸探针

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=76077-7