Hepatitis B/C — Flashcards

Flashcard 21: Before beginning treatment for HCV - a clinical history, physical exam, and _____ are undergone

Answer: genotyping

Extra:    https://onlinemeded.org/spa/microbiology/antivirals/acquire?ref=anki 

Flashcard 22: _____ is a deltavirus that causes hepatitis

Answer: HDV

Extra:  https://onlinemeded.org/spa/gastroenterology/viral-hepatitis/acquire?ref=anki 

Flashcard 23: Which hepatitis virus lacks 3'-5' exonuclease activity? _____

Answer: HCV

Extra:   Watch associated Bootcamp video [https://app.bootcamp.com/med-school/gastroenterology/videos/hepatic-pathology?index=4] https://onlinemeded.org/spa/gastroenterology/viral-hepatitis/acquire?ref=anki 

Flashcard 24: Anti-HBc IgM is the sole marker during the _____

Answer: window period

Extra:  https://onlinemeded.org/spa/infectious-disease?ref=anki 

Flashcard 25: HBsAg indicates _____

Answer: active infection

Extra:  https://onlinemeded.org/spa/infectious-disease?ref=anki 

Flashcard 26: What serologic marker must be present for HDV infection?_____

Answer: HBsAg

Flashcard 27: Developed countries purify their _____ supply, eliminating HAV infection risk (fecal-oral transmission)

Answer: water

Flashcard 28: What type of vaccine is the HAV vaccine?_____

Answer: Inactivated/killed

Flashcard 29: What is the mechanism for antigenic variation of envelope proteins in HCV?_____

Answer: Lack of 3'-5' exonuclease -> lack of proofreading -> antigenic variation

Flashcard 30: Which hepatitis virus lacks 3'-5' exonuclease activity?_____

Answer: HCV