LOINC
Version 2.67

74825-1Saint Louis encephalitis virus Ab [Presence] in Serum by Hemagglutination inhibitionActive

Part Descriptions

LP14232-0   Saint Louis encephalitis virus
St. Louis Encephalitis is a disease caused by the mosquito borne St. Louis Encephalitis virus. St. Louis encephalitis virus is related to Japanese encephalitis virus. This disease mainly affects the United States. Occasional cases have been reported from Canada and Mexico. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, St. Louis enphalitis virus

LP6304-2   HAI
The hemagglutination-inhibition assay (HAI) can be used to identify subtypes of hemagglutinin producing viruses, such as Influenza. HAI can also be used to identify the subtype-specificity of antibodies against the virus. Normally, Influenza's hemagglutinin glycoprotein binds to receptors on the surface of red blood cells, causing them to agglutinate. If antibodies specific to the virus are present in the patient sample, they will bind to the virus, which prevents the virus from binding to the red blood cells and therefore prevents agglutination. To determine which subtype of virus is present, a viral isolate is tested against a series of antibodies with known subtype specificities. Whichever antibody inhibits red cell agglutination identifies the viral subtype. Similarly, antibody specificity is identified by testing the patient sample against known virus subtypes. [PMID: 24899416] Source: Regenstrief LOINC

Fully-Specified Name

Component
Saint Louis encephalitis virus Ab
Property
PrThr
Time
Pt
System
Ser
Scale
Ord
Method
HAI

Additional Names

Short Name
SLEV Ab Ser Ql HAI
Display Name
SLEV Ab HAI Ql (S)

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 2.48
Last Updated
Version 2.56
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

Example Answer List LL360-9

Source: Regenstrief Institute

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

Member of these Groups

LG32753-2 Saint Louis encephalitis virus

Language Variants Get Info

zh-CNChinese (CHINA)
圣路易型脑炎病毒 抗体:存在情况或阈值:时间点:血清:序数型:红细胞凝集抑制试验法
nl-NLDutch (NETHERLANDS)
Saint Louis-encefalitisvirus As:aanwezigheid:moment:serum:ordinaal:hemagglutinatieremming
fr-BEFrench (BELGIUM)
Virus de l'encéphalite de Saint Louis Ac:PrThr:Temps ponctuel:Sérum:Ordinal:Inhibition de l'hémagglutination
fr-CAFrench (CANADA)
Virus de l'encéphalite de Saint Louis , Ac:Présence-Seuil:Temps ponctuel:Sérum:Ordinal:Inhibition de l'hémagglutination
fr-FRFrench (FRANCE)
Encéphalite de Saint-Louis virus Ac:Présence/Seuil:Ponctuel:Sérum:Qualitatif:Hémagglutination indirecte
it-ITItalian (ITALY)
Encefalite di Saint Louis, virus , Ab:PrThr:Pt:Siero:Ord:HAI
pt-BRPortuguese (BRAZIL)
Saint Louis encefalite vírus Ac:Limiar:Pt:Soro:Ord:Hemaglutinação indireta
es-ESSpanish (SPAIN)
Virus de la encefalitis de Saint Louis Anticuerpos:PrThr:Punto temporal:Suero:Ord:Inhibición de la Hemaglutinación
tr-TRTurkish (TURKEY)
Saint Louis ensefalitis virüsü Ab:MevcEşik:Zmlı:Ser:Srl:HAI

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=74825-1