Hepatitis Flashcards

1
Q

How is Hep A transmitted

A

Faecal-oral

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2
Q

What is the incubation of Hep A

A

28 days

Most infective a week before symptoms appear till a few days after

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3
Q

What are the symptoms of Hep A

A
Mild 
Fever
Malaise
Anorexia
N+V
Abdominal pain
Jaundice
Dark urine / pale stools
HSM
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4
Q

Who is at risk of Hep A

A
MSM 
PWID
Sewage workers
Haemophiliacs 
Travel
Chronic liver disease
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5
Q

How do you diagnose Hep A

A

IgM Anti-HAV
IgG reflects past exposure + immunity
Elevated liver enzymes

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6
Q

What is the Rx of Hep A

A

No specific treatment
Human Ig prophylaxis
Vaccine (active if high risk)

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7
Q

Complications of Hep A

A

No chronic damage

Prolonged fatigue / jaundice

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8
Q

How is Hep B transmitted

A

Vertical - babies

Horizontal - blood / sexual / body fluids

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9
Q

Who is high risk of Hep B and advised active immunisation?

A
PWID
MSM
Multiple partners
Immigration 
Haemodialysis / haemophiliac
Babies with risk mother
Close contacts
Health care personal 
Tattoos / piercings
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10
Q

Explain hepatitis B virus virology?

A

HbsAg = surface antigen
HBcAg = core antigen which secretes E antigen detected in blood
Viral DNA

E antigen and viral DNA = highly infectious

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11
Q

What is the incubation of Hep B

A

Weeks - 6 months

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12
Q

What are the symptoms of Hep B

A
Fever
Lethargy
Anorexia
N+V
Abdominal pain
Arthralgia 
Skin lesion 
Dark urine
Jaundice
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13
Q

What is the risk of chronic infection with Hep B?

A

Neonates = 90% chronic
In adults = 90% recovery

Fulminant Hepatic Necrosis <1%

  • DIC
  • Encephalpathy
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14
Q

What is chronic Hep B

A

Presence of HBsAg > 6 months

More likely if immunocompromised

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15
Q

Complications of chronic Hep B

A
Cirrhosis 
Hepatoma
Membranous GN
Polyarteritis Nodosa 
Cryroglobulinaemia 
Vasculitis rash
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16
Q

EPP restrictions with Hep B

A

Can’t perform if
HBeAg / HBsAg +ve
Viral DNA >1000
Hep C

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17
Q

How do you diagnose Hep B

A

Increased liver enzymes

Anti HbC IgM + IgG

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18
Q

How do you treat Hep B

A

Anti-viral if

  • cirrhosis
  • HBV >2000
  • increased ALT
  • significant inflammation

Hb IG
Pegylated interferon
Liver transplant

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19
Q

Prophylactic Rx of Hep B

A

Active immunisation (vaccine) given to babies
HBIG if no response to vaccine
HBIG and vaccine for PEP
Given if on chemo as risk of reactivation and family and sexual contacts

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20
Q

How is Hep C transmitted

A

Blood borne

Very low risk of sexual

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21
Q

RF for hep C transmission

A

PWID
HAemophiliac
Blood products / transfusion / dialysis
Tattoo / piercing

22
Q

Symptoms of Hep C

A
Mild 
Malaise
Anorexia
Fatique 
Jaundice
23
Q

Risk of chronic infection with hep C

A

Develops in most

24
Q

Complications of Chronic

A

Cirrhosis
Hepatoma
Can be asymptomatic for years

25
What accelerates Hep C
Alcohol
26
How do you diagnose Hep C
Increased liver enzymes No IgM IgG not detected for months HVC antigen detection
27
How do you treat Hep C
Pegylated interferon RIbavarin No PEP or vaccine
28
Response to Rx
Depends on age / gender / liver disease and amount of virus Non responder Viral breakthrough = respond initially Relapser = virus returns when Rx stopped Sustained viral response = undetectable virus
29
How is Hep D transmitted
Parenteral - PWID Little vertical / sexual Need HBV
30
Who is at risk of Hep D
PWID
31
How do you diagnose Hep D
IgM and IgG
32
Rx of Hep D
Pegylated interferon Liver transplant prevent Hep B
33
What are the chronic complications of hep D
Chronic Hep B | Cirrhosis
34
What are the symptoms of Hep D
More severe Hep B symptoms
35
How is Hep E transmitted
Faecal-oral
36
What is the incubation for Hep E
40 days
37
What are the symptoms of Hep E
``` Resembles HVA High mortality in pregnant women Increased transaminase Arthritis Anaemia Neurological ```
38
What are the complications of Hep E
Persistent infection in immunocompromised | Liver failure if chronic liver disease
39
How do you diagnose Hep E
IgG and IgM | No specific test so under diagnosed
40
How do you treat Hep E
Mostly self-limiting No licensed treatment Vaccine in China
41
What infections are associated with Hepatitis
``` Rubella CMV / EBV HSV Enterovirus VZV Yellow fever Leptospirosis Q fever Psittacosis ```
42
Transmission of Hep B
``` Blood borne Needles Sexual Vertical Horizontal ```
43
What should a pregnant lady with Hep B have given to her baby?
Hep B specific antigen | Ig 1, 2, 3 and 12
44
What is Hep B e a measure of?
Infectivity
45
Is hepatitis a notifiable disease?
Yes
46
Which hepatitis cannot be vaccinated against?
Hep C
47
Complication of Hep C
Liver cirrhosis | HCC
48
Which hepatitis may cause chronic disease?
Hep B
49
What hepatitis infections cause HCC?
B | C
50
What vaccine should be offered to patients with chronic hepatitis?
Pneumococcal
51
How to monitor Hep C infection
Viral load