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Kaplan Qbank USMLE



Author3 Posts
  #1

Select the most likely set of serologic test results related to hepatitis B viral infection. (please give your reasons)


A. HBsAg (-), Anti HBs (+), IgG anti HBc (+), IgM AntiHBc (-),
HBeAg (-), antiHBe (+), HBV DNA (-)

B. HBsAg (+), Anti HBs (+), IgG anti HBc (-), IgM AntiHBc (-),
HBeAg (-), antiHBe (+), HBV DNA (-)

C. HBsAg (-), Anti HBs (+), IgG anti HBc (-), IgM AntiHBc (-),
HBeAg (-), antiHBe (-), HBV DNA (-)

D. HBsAg (+), Anti HBs (-), IgG anti HBc (-), IgM AntiHBc (+),
HBeAg (+), antiHBe (-), HBV DNA (+)

E. HBsAg (+), Anti HBs (-), IgG anti HBc (+), IgM AntiHBc (-),
HBeAg (-), antiHBe (+), HBV DNA (+)



1. Chronic Hepatitis B (pre core mutant)
2. Immunity as a result of vaccination
3. Acute hepatitis B
4. Immunity as a result of previous infection
5. Chronic hepatitis B


Abar USMLE

  #2

A) HBsAg - (no persistent hep B infection) and the latest Anti body has rise Anti HBcIg so it would be resolve the Anti HBc > from previous infection
B)HBsAg + but how can Anti HBs rise (it will go up when the HBsAg fall!
C)HBsAg - > no persistent infection ,anti HBs + immune from vaccineD)
D) HBsAg + -persistent infection ,HBeAg high replicationIgM anti HBc +
So it's in acute hepatitis
E)HBsAg +,but the IgG already rise so it 's in chronic low replication state
Chronic Hepatitis B (pre core mutant) ?what does it mean?

  #3

a) immunity, previous infection, recovery?--immunity/ previous infection

b)viral envelope, immunity, recovery?-acute (looks like he recovered)

c)immunity--vaccine

d)viral envelope, distinct infectivity,--chronic

e)viral env., prev. infection, distinct infectivity---chronic precore mutant?-

*time check!

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