Hep B and C Flashcards
1
Q
What is the first marker to appear in acute Hep B infection
A
surface antigen (HBsAg)
which causes the production of anti-HBs
2
Q
What does anti-HBs imply
A
immunity
(either exposure or immunisation)
3
Q
Is HbeAg a marker of Hep B infection?
A
HbeAg results from breakdown of core antigen from infected liver cells as is, therefore, a marker of infectivity.
4
Q
If someone has been immunised against Hep B, what would their results show
A
anti-HBs positive, all others negative
5
Q
previous hepatitis B (> 6 months ago), not a carrier
A
anti-HBc positive
HBsAg negative
6
Q
previous hepatitis B, now a carrier
A
anti-HBc positive
HBsAg positive
