Version 2.78

Part Description

LP28423-9   West Nile virus
The West Nile Virus (WNV) is an arbovirus that was first identified in the West Nile District of Uganda in 1937. In the fall of 1999, the National Veterinary Services Laboratory (NVLS) isolated WNV in a dead crow in New York City.(http://www.who.int/mediacentre/factsheets/fs354/en/) Over the following ten years, WNV spread throughout the United States, Canada, Mexico and the Carribbean. WNV is usually transmitted through the bite of the Culex mosquito, but can also be spread in blood transfusions, organ transplants, breast milk, intrauterine exposure and laboratory-acquired infections. Birds are the preferred host of WNV, and the American robin is an important amplifier host since it develops enough virus in its serum to infect feeding mosquitoes. Though most infections with WNV are subclinical for humans, between 2005 and 2009 there were 12,975 people infected with WNV, of which 35% had severe cases of neuroinvasive disease and 496 people died. For individuals who are 70 years of age or older, infection with WNV has a 15-29% fatality rate. For infants and immunocompromised patients infected with WNV, the fatality rate is even higher. Diagnosis of WNV is based on clinical symptoms and antibody titers. The IgM antibody-capture enzyme-linked immunosorbent assay (MAC-ELISA) is the key method used to diagnosis WNV in clinical settings. Antibody titers to WNV NS5 are detectable long-term in vivo and can be used to distinguish past infection with WNV from current infection. RNA is usually undetectable in serum after 13.2 days, but on rare occasions, has been found in serum beyond 40 days. Treatment of infection with WNV is mostly supportive. There are no FDA-approved drugs or vaccines available. PMID: 12089283 PMID: 23034323 Source: Regenstrief LOINC

Fully-Specified Name

Component
West Nile virus Ag
Property
PrThr
Time
Pt
System
XXX
Scale
Ord
Method
IF

Additional Names

Short Name
WNV Ag Spec Ql IF
Display Name
West Nile virus Ag IF Ql (Specimen)
Consumer Name Alpha Get Info
West Nile virus antigen, 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 2.16
Last Updated
Version 2.69
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.; Updated Answer list type from NORMATIVE to EXAMPLE because the Answers in the list (Positive, Negative) are only examples of possible answers and not an exclusive list
Order vs. Observation
Both

Member of these Groups Get Info

LOINC Group Group Name
LG32768-0 West Nile virus

Language Variants Get Info

Tag Language Translation
de-DE German (Germany) West-Nil-Virus Ag:Nachweis oder Schwellenwert:Zeitpunkt:XXX:Ordinal:Immunfluoreszenztest
es-ES Spanish (Spain) Virus Nilo Occidental Antígeno:PrThr:Punto temporal:XXX:Ord:Inmunofluorescencia (IF)
es-MX Spanish (Mexico) Virus del Nilo Occidental Ag:Presencia o umbral:Punto temporal:XXX:Ordinal:Inmunofluorescencia (IF)
fr-CA French (Canada) Virus du Nil occidental, Ag:Présence-Seuil:Temps ponctuel:XXX:Ordinal:Immunofluorescence
fr-FR French (France) West Nile virusl Ag:Présence/Seuil:Ponctuel:Milieux divers:Qualitatif:Immunofluorescence
fr-BE French (Belgium) Virus du Nil occidental Ag:PrThr:Temps ponctuel:XXX:Ordinal:Immunofluorescence
Synonyms: Antigène
it-IT Italian (Italy) Nilo occidentale, virus, Ag:PrThr:Pt:XXX:Ord:IF
Synonyms: Immunofluorescenza (IF) Microbiologia Presenza o Soglia Punto nel tempo (episodio) Virus del Nilo occidentale
ko-KR Korean (Korea, Republic Of) 웨스트 나일 바이러스 항원:임의농도:검사시점:XXX:순위척도:면역형광
nl-NL Dutch (Netherlands) West-Nijlvirus Ag:aanwezigheid:moment:XXX:ordinaal:immunofluorescentie
Synonyms: antigeen IF
pl-PL Polish (Poland) Wirus gorączki zachodniego Nilu Ag:granica wykrywalności:punkt w czasie:XXX:półilościowy:immunofluorescencja
Synonyms: Antygenu wirusa gorączki zachodniego Nilu
pt-BR Portuguese (Brazil) Vírus do Nilo Ocidental Ag:ACnc:Pt:XXX:Ord:Imunofluorescência
Synonyms: ; WNV; Arbitrary concentration; Point in time; Random; Misc; Miscellaneous; Unspecified; Other; Ql; Ordinal; QL; Qualitative; Qual; Screen; ACIF; FA; Fluorescent antibody; Immune fluorescence; Fluoresent; Immunoflour; Immunofluor; Immunofluorescence; IFA; Time Resolved Fluorescence; Anticomplement Immunofluorescence; TRF; Antigen; Antigens; Microbiology; DFA
ru-RU Russian (Russian Federation) Западный Нил вирус Аг:PrThr:ТчкВрм:XXX:Пор:ИФ
Synonyms: Иммунофлюоресценция (ИФ) Порядковый Точка во времени;Момент
tr-TR Turkish (Turkey) Batı Nil virüsü Ag:MevcEşik:Zmlı:XXX:Srl:IF
Synonyms: Antijen İmmünflorerans Mevcut
zh-CN Chinese (China) 西尼罗河病毒 抗原:存在情况或阈值:时间点:XXX:序数型:免疫荧光法
Synonyms: Ag Ag IF DFA IFA法;IF法;抗补体免疫荧光法;时间分辨荧光法;荧光原位杂交技术;荧光原位杂交法;荧光抗体 WNV Ag WNV 抗原 WNV;西尼罗河热;西尼罗河热病毒 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 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 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) 抗原免疫荧光检测 抗原免疫荧光测定 时刻;随机;随意;瞬间 直接免疫荧光分析 直接免疫荧光检测 直接免疫荧光测定 西尼罗河热病毒 Ag 西尼罗河热病毒抗原 西尼罗河病毒 Ag

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

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=41643-8