Version 2.76

Term Description

This term is used to report the interpretation of serology testing for Hepatitis A virus, i.e., whether the combination of two or more specific antibody results (IgG, IgM, IgA or total) indicates recent or past exposure/infection.
Source: Regenstrief LOINC

Part Descriptions

LP16708-7   Hepatitis A virus
Hepatitis A virus (Hep A or HAV) is an RNA virus that causes an acute infectious disease of the liver and is usually spread by the fecal-oral route. It is transmitted by ingestion of contaminated food or water or through direct contact with an infectious person. In developing countries, and in regions with poor hygiene standards, the incidence of infection with this virus is high. HAV infection produces a self-limited disease that usually does not result in chronic infection or chronic liver disease. Overall occurrence acute liver failure from Hepatitis A is rare (approx. 0.5%). The risk for symptomatic infection is directly related to age, with >80% of adults having symptoms compatible with acute viral hepatitis and the majority of children having either asymptomatic or unrecognized infection. Antibody produced in response to HAV infection persists for life and confers protection against reinfection. The disease can be prevented by vaccination, and hepatitis A vaccine has been proven effective in controlling outbreaks worldwide.

Although HAV is excreted in the feces towards the end of the incubation period, specific diagnosis is made by the detection of HAV-specific IgM antibodies in the blood. IgM antibody is only present in the blood following an acute hepatitis A infection. It is detectable from one to two weeks after the initial infection and persists for up to 14 weeks. The presence of IgG antibody in the blood means that the acute stage of the illness is past and the person is immune to further infection. IgG antibody to HAV is also found in the blood following vaccination and tests for immunity to the virus are based on the detection of this antibody. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See for details. Source: Wikipedia, Hepatitis A virus (Wikipedia)

LP16708-7   Hepatitis A virus
Hepatitis A virus (HAV) is a small, non-enveloped single-stranded RNA virus that belongs to the Picornaviridae family, genus Hepatovirus. HAV has six genotypes (I to VI) in which genotypes I to III are human isolates and IV to VI are only simian isolates. Genotypes I to III are subdivided into groups A and B. Genotype I is the most frequently reported. PMID: 15914081 The clinical manifestations of HAV infection can vary significantly and range from asymptomatic infection, usually seen in young children, to fulminant hepatitis, which can result in death. HAV has a global distribution, and transmission primarily occurs by the fecal-oral route. The risk of HAV transmission through blood products is very low, but there have been some reports of transmission through plasma products, mainly coagulation factors. PMID: 12186933 PMID: 1318940 Source: Regenstrief LOINC

Fully-Specified Name

Hepatitis A virus Ab

Additional Names

Short Name
HAV Ab Ser-Imp
Display Name
HAV Ab (S) [Interp]
Consumer Name Alpha Get Info
Hepatitis A virus (HAV) antibody, Blood

Basic Attributes

First Released
Version 2.26
Last Updated
Version 2.73
Order vs. Observation
Common Test Rank Get Info

Member of these Panels

LOINC Long Common Name
53775-3 Hepatitis A virus Ab panel - Serum
95142-6 Hepatitis A virus IgM panel - Serum

Member of these Groups Get Info

LOINC Group Group Name
LG32762-3 Hepatitis A virus

Language Variants Get Info

Tag Language Translation
de-AT German (Austria) Synonyms: HAV-AK IgM u. total
de-DE German (Germany) Hepatitis-A-Virus Ak:Interpretation:Zeitpunkt:Serum:Nominal:
Synonyms: Hepatovirus A; HAV
el-GR Greek (Greece) Ιός Ηπατίτιδας Α Αντίσωμα:Εντύπωση/ερμηνεία μελέτης:Χρονική στιγμή:Ορός:Ονομαστική:
Synonyms: Ab HAV
es-ES Spanish (Spain) Virus de la Hepatitis A Anticuerpos:Impresión/interpretación del estudio:Punto temporal:Suero:Nom:
es-MX Spanish (Mexico) Virus de la hepatitis A Ab:Impresión / interpretación del estudio:Punto temporal:Suero:Nominal:
fr-FR French (France) Hépatite A virus Ac:Interprétation:Ponctuel:Sérum:Résultat nominal:
fr-CA French (Canada) Virus de l'hépatite A , Ac:Impression/interprétation d'étude:Temps ponctuel:Sérum:Nominal:
fr-BE French (Belgium) Virus de l'hépatite A Ac:Impression/interprétation d'étude:Temps ponctuel:Sérum:Nominal:
Synonyms: Anticorps HVA
it-IT Italian (Italy) Epatite A, virus Ab:Imp:Pt:Siero:Nom:
Synonyms: anticorpo Impressione/interpretazione di studio Microbiologia Punto nel tempo (episodio) Siero Virus dell''epatite A
nl-NL Dutch (Netherlands) Hepatitis A-virus As:interpretatie:moment:serum:nominaal:
Synonyms: antistof; antilichaam
pt-BR Portuguese (Brazil) Hepatite A vírus Ac.IgM e total:Imp:Pt:Soro:Nom:
Synonyms: Immune globulin M; Immunoglobulin M; HAV IgM+total; Hep A; Interpretation; Interp; Impression; Impressions; Point in time; Random; Serum; SR; Nominal; Antibodies; Autoantibody; Antibody; Autoantibodies; Antby; Acy; Anti; Tot; Totl; Hepatit; Hepatis; Microbiology
ru-RU Russian (Russian Federation) Гепатита А вирус Ат:Впчт:ТчкВрм:Сыв:Ном:
Synonyms: Антитело Впечатление/интерпретация исследования Номинальный;Именной Сыворотка Точка во времени;Момент
tr-TR Turkish (Turkey) Hepatit A virüsü Ab:İzlnm:Zmlı:Ser:Snf:
Synonyms: Ak
zh-CN Chinese (China) 甲型肝炎病毒 抗体:印象:时间点:血清:名义型:
Synonyms: A 型 Ab;自身抗体 HAV Ab HAV 抗体 HAV;Hep A;甲型肝炎;甲肝;甲肝病毒;肝炎病毒 A 型 Hep A Ab Hep A 抗体 传染性肝炎 传染毒;传染毒素;滤过性病原体;病毒类;过滤性病原体 分类型应答;分类型结果;名义性;名称型;名词型;名词性;标称性;没有自然次序的名义型或分类型应答 印象是一种诊断陈述,始终是对其他某种观察指标的解释或抽象(一系列检验项目结果、一幅图像或者整个某位病人),而且几乎总是由某位专业人员产生。;检查印象;检查印象/解释;检查的印象/解释;检查解释;解释;阐释 微生物学;微生物学试验;微生物学试验(培养、DNA、抗原及抗体) 时刻;随机;随意;瞬间 甲型肝炎病毒 Ab 甲肝病毒 Ab 甲肝病毒抗体 肝 肝炎病毒 A 型 Ab 肝炎病毒 A 型抗体

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