Hepatitis Flashcards by Ryan Bray | Brainscape

Q

Best test to detect active HAV?

A

IgM HAV Ab

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Q

Indicates prior infection/vaccination against HAV?

A

IgG HAV Ab–protective against reinfection

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Q

HBsAg?

A

Active infection (carrier)

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Q

Anti-HBsAg

A

Immunity to HBV

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Q

Which marker is never found in serum?

A

HBcAg

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Q

What is positive during the window period?

A

Anti-HBe and IgM Anti-HBc

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Q

Anti-HBc IgM?

A

Acute or recent disease

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Q

Anti-HBc IgG?

A

Prior exposure or chronic disease

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Q

Active viral replication and transmissibility?

A

HBeAg

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Q

Anti-HBe Ab?

A

Low transmissibility

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Q

What is positive during acute HBV infection?

A

HBsAg, HBeAg, IgM Anti-HBc

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Q

What indicates chronic HBV with high infectivity?

A

HBsAg, HBeAg, IgG Anti-HBc

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Q

What indicates chronic HBV with low infectivity?

A

HBsAg, Anti-HBe, IgG Anti-HBc

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Q

What indicates recovery?

A

Anti-HBs, Anti-HBe, IgG Anti-HBc

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Q

What indicates immunity?

A

Anti-HBs only

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