LOINC
Version 2.73

6452-7Leptospira interrogans Ag [Presence] in Specimen by ImmunofluorescenceActive

Part Descriptions

LP17129-5   Leptospira interrogans
A genus of question mark-shaped bacteria spirochetes which is found in fresh water that is contaminated by animal urine. It causes LEPTOSPIROSIS. Source: National Library of Medicine, MeSH 2006

LP17129-5   Leptospira interrogans
Leptospira is a flexible, spiral-shaped, Gram-negative spirochete with internal flagella. Leptospira interrogans has many serovars based on cell surface antigens. Most leptospirosis infections initially present with an acute onset of fever, headache and muscle pain, which symptoms last about a week. The three organ systems most frequently involved with more significant illness are the central nervous system, kidneys, and liver, and jaundice occurs with severe infections. With the appearance of antileptospiral antibodies, the acute phase of the disease subsides and leptospires can no longer be isolated from the blood. The disease is usually biphasic, with the acute phase followed by an immune phase, which occurs after an asymptomatic period of several days. The immune phase is associated with fever and central nervous system involvement, specifically meningitis. Leptospires appear in the urine during this phase and are shed for various periods depending on the host. Severe leptospirosis is associated with progressive impairment of hepatic and renal function, and renal failure is the most common cause of death.
Leptospirosis is a worldwide zoonosis with a variety of animal hosts. The primary reservoir is wild animals such as rodents, which can shed leptospires throughout their lifetimes. Domestic animals are also an important source of human infections. The disease is more widespread in tropical countries. Direct or indirect contact with urine containing virulent leptospires is the major means by which leptospirosis is transmitted.
Leptospira species, which include L. interrogans, L. autumnalis, L. borgpetersenii, and L. weili are further divided into more than 200 serotypes based on their antigenic composition. The more severe form of leptospirosis is frequently associated with the icterohaemorrhagiae serotype and is often referred to as Weil's disease. [NCBI Books:NBK8451] Source: Regenstrief LOINC, NCBI Books: NBK8451

Fully-Specified Name

Component
Leptospira interrogans Ag
Property
PrThr
Time
Pt
System
XXX
Scale
Ord
Method
IF

Additional Names

Short Name
L inter Ag Spec Ql IF
Display Name
L. interrogans Ag IF Ql (Specimen)
Consumer Name Alpha
Leptospira interrogans antigen, Specimen

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 1.0f
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.
Order vs. Observation
Both

Member of these Groups

LG41636-8 Leptospira

Language Variants Get Info

zh-CNChinese (China)
致病性钩端螺旋体 抗原:存在情况或阈值:时间点:XXX:序数型:免疫荧光法
nl-NLDutch (Netherlands)
Leptospira interrogans Ag:aanwezigheid:moment:XXX:ordinaal:immunofluorescentie
et-EEEstonian (Estonia)
Leptospira interrogans antigeen:PrThr:Pt:XXX:Ord:IF
fr-BEFrench (Belgium)
Leptospira interrogans Ag:PrThr:Temps ponctuel:XXX:Ordinal:Immunofluorescence
fr-CAFrench (Canada)
Leptospira interrogans , Ag:Présence-Seuil:Temps ponctuel:XXX:Ordinal:Immunofluorescence
fr-FRFrench (France)
Leptospira interrogans Ag:Présence/Seuil:Ponctuel:Milieux divers:Qualitatif:Immunofluorescence
it-ITItalian (Italy)
Leptospira interrogans , Ag:PrThr:Pt:XXX:Ord:IF
ko-KRKorean (Korea, Republic of)
렙토스피라 인테로간스 항원:임의농도:검사시점:XXX:순위척도:면역형광
pt-BRPortuguese (Brazil)
Leptospira interrogans Ag:ACnc:Pt:XXX:Ord:Imunofluorescência
ru-RURussian (Russian Federation)
Leptospira interrogans Аг:PrThr:ТчкВрм:XXX:Пор:ИФ
es-ARSpanish (Argentina)
[antígeno de] Leptospira interrogans [Ag]:concentración arbitraria:punto en el tiempo:XXX:ordinal:inmunofluorescencia
es-MXSpanish (Mexico)
Leptospira interrogans Ag:Presencia o umbral:Punto temporal:XXX:Ordinal:Inmunofluorescencia (IF)
es-ESSpanish (Spain)
Leptospira interrogans Antígeno:PrThr:Punto temporal:XXX:Ord:Inmunofluorescencia (IF)
tr-TRTurkish (Turkey)
Leptospira interrogans Ag:MevcEşik:Zmlı:XXX:Srl:IF

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=6452-7