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Hepatitis A

Marie L. Borum, MD, EdD, MPH, MACP, FACG, AGAF and Vinay S. Rao, BA Reviewed 06/2020
 


BASICS

DESCRIPTION

Hepatitis A infections are caused by the hepatitis A virus (HAV), a member of the Hepatovirus genus. This virus is one of the world’s most common infections and primarily involves th...

DIAGNOSIS

HISTORY

  • Onset is often abrupt. Common initial symptoms include nausea, emesis and diarrhea, and headache.

  • Symptom severity increases with age.

  • Pediatric cases (<6 years) frequently asymptoma...

TREATMENT

GENERAL MEASURES

  • Maintain appropriate nutrition/hydration.

  • Avoid alcohol.

  • Universal precautions to prevent spread

  • Monitor coagulation defects, fluid, electrolytes, acid–base imbalance, hypoglyce...

ONGOING CARE

FOLLOW-UP RECOMMENDATIONS

Return to work/school 10 to 14 days after onset of symptoms with diligence to hygiene (patients remain infectious for up to 4 weeks from symptom onset). 

Patient Monitoring

REFERENCES

1
Centers for Disease Control and Prevention. Hepatitis A questions and answers for health professionals. https://www.cdc.gov/hepatitis/hav/havfaq.htm. Accessed September 24, 2019.
2
Irving GJ...

ADDITIONAL READING

  • Chaudhry SA, Koren G. Hepatitis A infection during pregnancy. Can Fam Physician.  2015;61(11):963–964.

  • Linder KA, Malani PN. Hepatitis A. JAMA.  2017;318(23):2393.

SEE ALSO

  • H...

CODES

ICD10

B15.9 Hepatitis A without hepatic coma 

ICD9

070.1 Viral hepatitis A without mention of hepatic coma 

SNOMED

  • 25102003 acute type A viral hepatitis (disorder)

  • 310875001 Hepatitis A - current infe...

CLINICAL PEARLS

  • HAV vaccine is indicated for all children, travelers (particularly to endemic areas), those at elevated risk of disease, and patients with liver impairment.

  • Check HAV IgG in all HIV-pos...

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