Viral hepatitis Flashcards

1
Q

clinical signs of hepatitis

A

Typically malaise, myalgias, arthralgias, fatigue, anorexia, N/V/D

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2
Q

this type of hep has no chronic form

A

hep A

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3
Q

jaundice is seen in this age group MC with hep A

A

> 14 70-80% have jaundice

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4
Q

how do you get hep A

A

fecal oral

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5
Q

how do most hep A outbreaks occur in the US?

A

community wide outbreaks

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6
Q

how to prevent hep A

A
  • hand washing
  • vaccine
  • immune globulin if exposed
  • IVF/supportive care
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7
Q

IgM vs

IgG

A

acute phase

past exposure

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8
Q

you are way more likely to get this disease than HIV from a needle stick

A

Hep B

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9
Q

Risk of Chronic Infection After Acute Exposure is highest in

A

newborns of HepBeAg+ mothers

Actively replicating virus in the body (HBeAg), if mother has this then newborns are very likely to get chronic hep B

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10
Q

this is used to monitor antiviral therapy for Hep B

A

HBV DNA

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11
Q

this is the main test for Hep B and earliest indicator of acute Hep B infection

A

HBsAg

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12
Q

Response to surface antigen, this means you cleared it or have immunity

A

HBsAb or anti-HBsAg

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13
Q

Hep B virus is replicating and very infectious

A

HBeAg

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14
Q

Hep D requires

A

Hep B, treat Hep B and D will go away

Negative RNA indicates recovery

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15
Q

progression to chronic hep B is shown when

A

HBsAg is present forever

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16
Q

extrahepatic manifestations of hep B

A
Polyarteritis Nodosa (bumps under skin)
glomerulonephritis
17
Q

how to tx Hep b

A

acute-no tx required

fulminant/chronic-antivirals

18
Q

as the pts ALT levels increase in response to chronic Hep B if HbEAg is +

A

more monitoring is required

19
Q
Lamivudine (Epivir)
Adefovir dipivoxil (Hepsera)
A

Nucleoside analog

less mutation shown

20
Q

interferon

A

bad side effects, pt feels crappy

21
Q

Entecavir (Baraclude)

A

guanosine analogue

very low mutation rate

22
Q

Tenofovir (Viread)

A

nucleotide analog approved for HIV and Hep B

23
Q

how do we define efficacy of tx

A
  • termination of Hep B virus replication
  • cessation of chronic liver injury
  • disease free state
24
Q

Most common blood-borne infection in U.S.

A

Hep C

  • Leading cause of cirrhosis/chronic hepatitis/Hepato- Cellular Carcinoma in U.S
  • commonly asymptomatic
25
Q

acute vs chronic progression of ALT

A

acute shows increased ALT
chronic fluctuates ALT
anti HCV seen in both means you were exposed but still can have the disease

26
Q

extrahepatic manifestations of Hep B

A
  • essential mixed cyroglobulinemia (Abnormal proteins which precipitate/dissolve depending on Tempº)
  • small vessel vasculitis
  • Porphyria cutanea tarda
27
Q

direct acting antivirals for Hep C

A

Ledipasvir-sofosbuvir (Harvoni)

28
Q

length of Hep C tx

A

12- 24 weeks (non-cirrhotics +/- RX-naïve)
Up to 48 weeks (cirrhotics +/- RX failure)
HCV/HIV coinfection: typically longer course of DAA