hepatitis Flashcards
How is hepatitis A transmitted?
fecal contamination in water and food
Tx hepatitis A?
self limited
eat small snacks, higher calorie oods, avoid irritating liver. no NSAIDS or etoh.
signs of hepatitis A?
nausea, fever, malaise, anorexia, abdominal pain, jaundice. clay colored stools, dark colored urine, joint pains
labs hepatitis A?
elevated 20 x normal
IgM
immunization for hepatitis A consists of what?
2 doses HAV vaccine 6-12 months apart
postexposure prophylaxis hep A?
IG ad HAV vaccine
40 IG
IG made from pooled blood and is useful within 2 weeks of exposure.
hepatitis B mode of transmission?
blood and body fluids, sexual activity and drugs.
hepatitis immunization?
recombinant - no live virus. CI if allergy to bakers yeast.
when give hep B booster?
hemodialysis if HB surface antigen
serological test for Hep A?
acute: anti-HAV IgM
acute hep A in hep B carrier:
anti- HAV IGgM, HBsAg, anti-HBc total
Chronic: none
serological test for Hep B?
Chronic: HBsAg and total anti-HBc
Acute: anti-HBC IgM and total anti-HBc, HBsAg
past infection: anti-HBc
serological test for Hep C?
none for acute.
chronic: screening assay EIA or CIA for anti HCV
what does HBsAg signal?
currently infected.
what does IgM anti-HBc signal?
acute infection
what does anti-HBs?
recovery from hep B or vaccination.