LOINC
Version 2.72

89594-6Legionella pneumophila Ag [Presence] in Lower respiratory specimen by ImmunofluorescenceActive

Term Description

Immunofluorescence testing of lower respiratory specimens for Legionella pneumophila antigen has over 99% specificity, but only 25-70% of patients with culture-positive disease test positive for the antigen. Therefore, IF cannot be used to rule out Legionella infection, but a positive result is nearly always diagnostic. [http://www.who.int/water_sanitation_health/emerging/legionella.pdf]
Source: Regenstrief LOINC

Part Description

LP16720-2   Legionella pneumophila
Legionella pneumophila, a gram-negative bacillus, most commonly causes acute pneumonia (legionellosis). Transmission to humans is usually through aerosols of infected water sources such as fountains, misting systems, and drinking water. Severity of infections due to L. pneumophila range from mild (walking pneumonia) to fatal (multilobar pneumonia). Antimicrobial therapy usually includes erythromycin, with the addition of rifampin in severe cases. Initial response to therapy is usually rapid, but full recovery can take weeks to months. [PMID:21413250] Source: Regenstrief LOINC

Fully-Specified Name

Component
Legionella pneumophila Ag
Property
PrThr
Time
Pt
System
Respiratory.lower
Scale
Ord
Method
IF

Additional Names

Short Name
L pneumo Ag Lower resp Ql IF
Display Name
L. pneumophila Ag IF Ql (Lower resp)
Consumer Name Alpha
Legionella pneumophila antigen, Lower respiratory

Example Answer List LL744-4

Source: Regenstrief Institute

Answer Code Score Answer ID
Detected LA11882-0
Not detected LA11883-8

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 2.64
Last Updated
Version 2.64
Order vs. Observation
Both

Member of these Groups

LG41638-4 Legionella
LG34024-6 Legionella pneumophila Ag|PrThr|Sys:ANYResp

Language Variants Get Info

zh-CNChinese (China)
嗜肺军团菌 抗原:存在情况或阈值:时间点:呼吸道.下:序数型:免疫荧光法
nl-NLDutch (Netherlands)
Legionella pneumophila Ag:aanwezigheid:moment:onderste luchtwegen:ordinaal:immunofluorescentie
fr-CAFrench (Canada)
Legionella pneumophila , Ag:Présence-Seuil:Temps ponctuel:Système respiratoire.inférieur:Ordinal:Immunofluorescence
fr-FRFrench (France)
Legionella pneumophila Ag:Présence/Seuil:Ponctuel:Voies respiratoires inférieures:Qualitatif:Immunofluorescence
it-ITItalian (Italy)
Legionella pneumophila , Ag:PrThr:Pt:Sistema respiratorio.inferiore:Ord:IF
es-MXSpanish (Mexico)
Legionella pneumophila Ag:Presencia o umbral:Punto temporal:Muestra de vías respiratorias inferiores:Ordinal:Inmunofluorescencia (IF)
es-ESSpanish (Spain)
Legionella pneumophila Antígeno:PrThr:Punto temporal:Tracto respiratorio inferior:Ord:Inmunofluorescencia (IF)
tr-TRTurkish (Turkey)
Legionella pneumophila Ag:MevcEşik:Zmlı:Respiratuvar.alt:Srl:IF

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=89594-6