hepatitis Flashcards

(59 cards)

1
Q

what is a cause of chronic liver disease

A

chronic hepatitis

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2
Q

what do hepatocytes show

A

degenerative changes (swelling, vacuolation)

necrosis
shrink

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3
Q

what inflammatory cells are present

A
  • lymphocytes
  • plasma cells
  • lymphoid follicles
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4
Q

what are the causes of acute hepatitis

A

A

E

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5
Q

what virus is hep A

A

RNA

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6
Q

how does hep A spread

A

faecal-oral

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7
Q

is there a vaccine for hep A

A

vaccine

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8
Q

what virus is hep B

A

DNA

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9
Q

is hep B spread by blood

A

yes

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10
Q

is hep B spread by salvia

A

yes

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11
Q

when is hepatitis A usually seen

A

autumn

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12
Q

who does hep A affect

A

children and young adults

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13
Q

where does hep A arise from

A

ingestion of contaminated food or water

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14
Q

what kind of virus is it

A

picornavirus

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15
Q

where does hep A replicate

A

liver

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16
Q

where is hep A excreted

A

bile and then faeces

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17
Q

symptoms of hep A

A
  • nausea
  • anorexia
  • jaundice

then

  • dark urine
  • pale stools
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18
Q

why do you get dark urine and pale stools

A

intrahepatic cholestasis

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19
Q

what is liver like in hep A

A

enlarged

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20
Q

what test for hepatitis A

A

anti-HAV IgM = acute

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21
Q

treatment for hepatitis A

A

vaccine

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22
Q

hep B transmission

A
  • vertical = mother to child in womb
  • horizontal = abrasions usually children
    = IV drug use
    = male to male sex
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23
Q

what does hep B look like

A
  • inner core

- outer envelope (HBsAG).

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24
Q

what is Hep B core formed from

A

HBcAG

- contains double stranded DNA

25
what is HBeAG
protein formed via specific self cleavage secreted separately by the cell
26
what happens to hep B once it enters the cell
it loses its coat
27
what can HBV cause
hepatocellular carcinoma
28
symptoms of HBV
- rash - polyarthritis - fever
29
initial test for HBV
HBsAg is looked for
30
what is looked for in acute HBV
anti-abc IgM
31
is there a vaccine for HBV
yes
32
what can HBsAg do to cytoplasm
give ground glass appearance
33
what is oral antiviral therapy for HBV
entecavir tenofovir lamivudine
34
what is HDV enclosed in
shell of HBsAg
35
what is HDV always present with
hep B
36
how is HDV diagnosed
serum IgM anti-HDV
37
what usually develops with HDV
cirrhosis
38
what is chronic HDV confirmed by
finding HDV in the. liver or HDV RNA in serum by PCR
39
treatment for patients with active liver disease
pegylated interferon-alfa-2a for 12 months
40
how is HCV transmitted
blood to blood e.g. IV drug user
41
what is HCV
single stranded RNA
42
what do some patient with HCV get
mild influenza | - jaundice
43
testing for HCV
anti-HCV test
44
HEV is usually in
contaminated water
45
is HEV zoonotic
yes
46
what is used for HEV diagnosis
ELISA for IgG and IgM
47
how to prevent and control HEV
good sanitation | hygiene
48
what is most common hepatitis
C
49
is there a vaccine for hepatitis C
no
50
how is hepatitis B found
only with HepB
51
where is hepatitis E common
in tropics
52
what is HBsAg
hep B surface antigen
53
what does HBsAg mean for the patient
they are currently infected with Hep B
54
what is Anti-HBs
hep B surface antibody
55
what does presence of Anti-HBs indicate
recovery and immunity = means successfully vaccinated
56
what is Anti-HBc
hep B core antibody
57
when does Anti-HBc appear
onset of acute Hep B and stays for life - indicates previous or ongoing infection
58
is hep A acute or chronic
acute
59
is there a vaccine for Hep B
yes