Block 4 - Viral hepatitis Flashcards
Hepatitis A-E
Feces is a source for which one?
A + E
Hepatitis A-E
Blood, bodily fluids are a source for which one?
B, C, and D
Hepatitis A-E
Which one presents with a chronic infection?
B, C, and D
Hepatitis A-E
Which one is preventable via immunization?
A, B and D
Hepatitis A-E
Which one is prevented by safe drinking water?
E
Hepatitis A-E
Which one is prevented by behavior modification or through blood donor screening?
C
What kind of virus is Hep. A?
RNA virus of Picornaviridae family
Self-limiting, usually acute
How do you treat Hep A?
You dont
Provide supportive care, most fully recover within 6 months
IM injection + Hep A
HAVRIX and VAQTA are almost the same
Age 1-18 dose = 0.5ml
Age ≥19 dose = 1ml
Schedule month 0 and 6-12 (18 for VAQTA)
TWINRIX, which covers Hep A and B, it has 3 doses at month 0,1,6
What kind of virus is Hep B?
DNA virus, partially double stranded
Highly virulent, 50-100x more infectious than HIV
What are the Hep B vaccines?
Engerix, Recombivax, and Heplisav-B
TWINRIX for Hep A + B
Engerix
Recombivax
Heplisav-B
Which one is for all ages?
Engerix
Engerix
Recombivax
Heplisav-B
Which one has 3 doses?
Engerix + Recombivax (months 0, 1, 6)
Engerix
Recombivax
Heplisav-B
Which one is approved for ages ≥1 yo?
Recombivax
Engerix
Recombivax
Heplisav-B
Which one is approved for ages ≥18yo?
Heplisav-B
Engerix
Recombivax
Heplisav-B
Which one has 2 doses?
Heplisav-B (months 0, 1)
Anyone which active HBV is defined as…
HBV DNA >2000
ALT≥2x ULN or evidence of advanced fibrosis
What is the first line Tx for chronic HBV?
Pegylated IFN
Entecavir
Tenofovir DF
Tenofovir Ala..
Pegylated IFN
Entecavir
Tenofovir DF
Tenofovir Ala..
Which one is contraindicated if CrCl <15?
Tenofovir Ala.
Pegylated IFN
Entecavir
Tenofovir DF
Tenofovir Ala..
Which one inhibits HBV replication using 3 steps?
Entecavir
Primes polymerase, reverse transcriptase, and then DNA synthesis