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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

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,

LOINC Names Get Info

Fully-Specified Name
Legionella pneumophila Ag:PrThr:Pt:Respiratory system specimen.lower:Ord:IF
Long Common Name
Legionella pneumophila Ag [Presence] in Lower respiratory specimen by Immunofluorescence
Short Name
L pneumo Ag Lower resp Ql IF
Display Name
L. pneumophila Ag IF Ql (Lower resp)
Consumer Name Alpha Get Info
Legionella pneumophila antigen, Lower respiratory

Part Model Get Info

  • Component
    Legionella pneumophila Ag
    LP38824-6
    • Analyte
      Legionella pneumophila Ag
      LP38824-6
      • Component Numerator
        Legionella pneumophila Ag
        LP38824-6
        • Component Numerator Core
          Legionella pneumophila
          LP16720-2
        • Component Numerator Core Suffix
          Ag
          LP20666-1
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    PrThr
    LP217195-9
  • Time
    Pt
    LP6960-1
  • System
    Respiratory system specimen.lower
    LP438102-8
    • System Core
      Respiratory system specimen.lower
      LP438102-8
    • Super System
      NULL
       
  • Scale
    Ord
    LP7751-3
  • Method
    IF
    LP6323-2

Example Answer List: LL744-4

Source: Regenstrief Institute
AnswerCodeScoreAnswer ID
DetectedLA11882-0
Not detectedLA11883-8

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 2.64
Last Updated
Version 2.77 (MAJ)
Change Reason
Release 2.77: SYSTEM: Updated to standardize the representation of "Respiratory system specimen" in the System subhierarchy across LOINC;
Order vs. Observation
Both

Member of these Groups Get Info

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

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Legionella pneumophila Ag:Přítomnost nebo práh:Časový bod:Vzorek dolních cest dýchacích:Ordinální:Imunofluoresecence (IF)
el-GRGreek (Greece)Legionella pneumophila (Λεγιονέλλα) Αντιγόνο:PrThr:Pt:Δείγμα αναπνευστικού συστήματος.κατώτερο:Ord:Ανοσοφθορισμός
Synonyms: Legionella pneumophila (Λεγιονέλλα) MICRO Ord PrThr Pt Αναπνευστικό Αναπνευστικό σύστημα Ανοσοφθορισμός Αντιγόνο Δείγμα Δείγμα αναπνευστικού συστήματος Δείγμα αναπνευστικού συστήματος.κατώτερο
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:Muestra de vías respiratorias inferiores:Ord:Inmunofluorescencia (IF)
Synonyms: Muestra del tracto respiratorio Muestra respiratoria Tracto respiratorio
fr-FRFrench (France)Legionella pneumophila Ag:Présence/Seuil:Ponctuel:Échantillon du système respiratoire inférieur:Qualitatif:Immunofluorescence
it-ITItalian (Italy)Legionella pneumophila, Ag:PrThr:Pt:Campione da Sistema Respiratorio.inferiore:Ord:IF
Synonyms: Campione da Apparato Respiratorio Campione da apparato respiratorio inferiore Immunofluorescenza (IF) Microbiologia Presenza o Soglia Punto nel tempo (episodio)
nl-NLDutch (Netherlands)Legionella pneumophila Ag:aanwezigheid:moment:onderste luchtwegen:ordinaal:immunofluorescentie
Synonyms: antigeen IF onderste ademhalingsstelsel; systema respiratorium inferior systema respiratorium; ademhalingsstelsel
pl-PLPolish (Poland)Legionella pneumophila Ag:granica wykrywalności:punkt w czasie:próbka z układu oddechowego.dolna część:uporządkowany:immunofluorescencja
Synonyms: Antygen Legionella pneumophila próbka z dolnych dróg układu oddechowego
zh-CNChinese (China)嗜肺军团菌 抗原:存在情况或阈值:时间点:呼吸系统标本.下: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 下 下的 下部 低级 低级的 供检查用的材料;待检物;待试验物;样品;样本;试料;试样 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 军团 军团菌属 受检物 呼吸系统（呼吸道）标本.下;下呼吸系统标本;下呼吸道标本 呼吸道标本（样品、样本）;呼吸系统标本（样品、样本） 嗜肺军团菌 Ag 嗜肺性 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 样品 样本 直接免疫荧光分析 直接免疫荧光检测 直接免疫荧光测定 试样 较低 较低的

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

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