Hepatitis Flashcards
How are each of the hep’s spread?
Hep A = faecal oral - Overseas seafood Hep B = haem & vertical spread Hep C = haem & less vertical spread Hep D = haem (dependent on HBV co-infection) Hep E = faecal oral
What type of virus is Hep A?
RNA virus
What are the symptoms of a prodromal Hep A infection?
Flu like
Anorexia
DISTASTE FOR CIGARETTES
What is the second phase of Hep A?
Icteric phase
- HSM
- Jaundice
- Cholestasis
Investigations for Hep A?
LFTs
- ALT > AST but both raised
Immunoglobulins
- IgM raised
- Anti- HepA
Treatment of hep A?
Mostly supportive
- 85% recover fully
If fulminant hep
- IFN-a
- Liver transplant
What type of virus is Hep B?
DNA
What is the incubation time of Hep B?
1-6 months
What are the phases of Hep B infection?
Prodromal phase
Icteric phase
Immune complex formation
What are symptoms of prodromal phase?
Flu like symptoms
What are the symptoms of the icteric phase?
Jaundice
HSM
Cholestasis
What is the typical serological course of Hep B?
Initially
- HBeAg raised
- HBsAg rising
- IgM anti-HBc rising the falling
- Total anti-HBc rising
Later
- Detectable IgG anti-HBc
Which serological Hep B markers can be measured and what do each of them mean?
HBsAg
- current infection
HBcAg
- Active infection
IgM anti-HBc
- Current infection
IgG anti-HBc
- Past infection
Anti- HBs
- Immunisation
What are the symptoms of the immune complex phase in Hep B?
Urticaria
Polyarteritis nodosum
Glomerulonephritis
What serostatus of mother indicates a low risk of neonatal infection in Hep B?
HBsAg +ve
HBeAg -ve