Hepatitis Flashcards
(27 cards)
Why hepatitis type is caused by a DNA virus
Hepatitis B
Transmission of each hepatitis
A - faeco - oral B - sexual, vertical, parenteral C - parenteral (IVDU) D - parenteral, sexual E - faeco oral
Which hepatitis can be passed from mother to baby
Hepatitis B
Which hepatitis is chronic
Hepatitis C
Risk factor of hepatitis A
Travelling to Asia or Africa
Clinical feature of hepatitis
Symptoms RUQ pain Pruritis Nausea and vomiting Anorexia Joint pain
Signs:
RUQ tenderness
Jaundice
Flu symptoms
Investigations
Abdominal examination
Obs
Bloods - LFTs, U+Es, FBC, CRP, prothrombin time, serology
Serology
Surface antigen - active infection
Surface antibody - immunity - past infection or vaccinated
Core IgM - acute infection
Core IgG - past infection
e antigen - infectious - active replication
Vaccinated serology
Surface antigen - negative
Surface antibody - positive
IgM - negative
IgG - negative
Chronic infection serology
Surface antigen - positive
Surface antibody - negative
IgM - negative
IgG - positive
Immune last infection serology
Surface antigen - negative
Surface antibody - positive
IgM - negative
IgG - positive
Acute infection serology
Surface antigen - positive
Surface antibody - negative
IgM - positive
IgG - positive
Definition of chronic hepatitis
Hepatitis lasting for 6 months or longer
Management of hepatitis
A - supportive care
B - antivirals - pegylated IFN- a (no cure)
C - antivirals +/- ribaviran
Hepatitis E risk factors
Farm animals
Immunocompromised
Complication of hepatitis
Chronic liver disease - cirrhosis
Hepatocellular carcinoma
Most common worldwide and in Europe
Worldwide - B
Europe - C
Which hepatitis has vaccine
Hep B
Hereditary haemochromatosis
Inherited disorder resulting from abnormal
iron metabolism
Hereditary haemochromatosis complications
Myocardial:
- Dilated cardiomyopathy
- Arrhythmias
Endocrine:
Pancreas: DM
Pituitary: hypogonadism → amenorrhoea, infertility
Parathyroid:
- hypocalcaemia and osteoporosis
- Arthritis- 2nd and 3rd MCP joints, knees and shoulders
Liver
Chronic liver disease → cirrhosis → HCC
Hepatomegaly
Skin:
Slate grey discolouration
HHC Mx
Iron removal
- Venesection
General:
- Monitor DM
- Low Fe diet
Screening:
Se ferritin and genotype
Screen 1st degree relatives
Transplant in cirrhosis
α1-Antitrypsin Deficiency
α1AT inhibits neutrophil elastase therefore deficiency causes increased elastase
α1AT is synthesised in the liver
- Causes COPD in younger pts
Ix of α1-Antitrypsin Deficiency
Blood: ↓ se α1AT levels Liver biopsy: CXR: emphysematous changes Spirometry: obstructive defect Prenatal Dx: possible by CVS
Wilson’s Disease
Mutation of Cu transporting ATPase
Impaired hepatocyte incorporation of Cu into
caeruloplasmin and excretion into bile.
Cu accumulation in liver and, later, other organs