Biliary/Liver Flashcards
Pre-hepatic causes of jaundice (2)
Haemolytic anaemia
Gilberts
Post-hepatic causes of jaundice (2)
Gallstones
Obstructing cancer: head of pancreas, CBD
Hepatic causes of jaundice (5)
Viral hepatitis Alcoholic hepatitis NAFLD AIH Genetic hepatitis
Features of post hepatic jaundice
Pale stools
Dark urine
Features of haemolytic anaemia (4)
HA: low Hb, raised bilirubin, low haptoglobins, raised lactate
Normal urine – unconjugated bilirubin is insoluble in water
Causes of chronic liver disease (5)
Viral hepatitis Alcoholic hepatitis NAFLD AIH Genetic hepatitis
Which hepatic virus’ are chronic
BCD but C is more likely to become chronic
What is the typical population of AIH
Look for fat young women who are cushingoid post tx
Congenital causes of chronic liver disease and what is their inheritance pattern (3)
A1AT, Wilsons, hereditary haemochromatosis
All are autosomal recessive
AI causes of liver disease
AIH, PSC, PBC
Hepatitis A:
Transmission route
Infection length
Symptoms (6)
Oro-anal sex; faeco-oral spread Acute (around 8 weeks) asymptomatic (usually) but can have: Nausea Vomiting (+ Diarrhoea) Fever Jaundice Abdominal pain (particularly RUQ)
Hepatitis B:
Transmission route
Infection length
Symptoms
Blood, Semen, Vertically
Most adults clear it
Hepatitis C:
Transmission route
Only through blood (e.g. drugs or tattoos)
Which hepatic virus can cause HCC
HCV/HBV
Which hepatic virus can only connect with another
D can only co-infect with B
Which hepatic virus is a particular problem for pregnant women
HEV
Which group of patients are particularly at risk of HEV
Pregnant women and immunocompromised
Length of infection of HBV and HCV and difference in adults and children
B adults mostly clear, children stay as carriers
C adults mostly stay as carriers and children clear
Incubation period of HAV
2 weeks
Incubation period of HBV
4-12 weeks
Incubation period of HCV
2 weeks - 6 months
Incubation period of HDV
4-12 weeks
Incubation period of HEV
5-6 weeks
All viral hepatitis’ can cause acute hepatitis with transaminitis in 1000s except…..
Hepatitis B which is mostly cleared by adults
What is the triad for viral hepatitis
(Fever) + Jaundice + Raised AST/ALT (in the 1000’s)
Where is HAV endemic to
Africa/Asia
Where is HBV endemic to
Africa
Where is HCV endemic to
Eastern Mediterranean
Where is HDV endemic to
Africa
Where is HEV endemic to
Poor water supply (India, most third world areas…)
Which is chronic and which is acute IgG and IgM
IgM MAN that’s acute!
IgG Chronic
What does HbsAg mean
HBV is here/around NOW
Negative if been cleared/past vaccine
Positive in acute/chronic infection
What does HbeAg
mean
Infective
What does Anti-HbS
mean
Immune Past clearance (ie got it in past, cleared it, ‘natural immunity’
What does Anti-Hbc
mean
Caught in the past
Positive if natural immunity and cleared
Mx of HAV
A: supportive care
Mx of HBV
B: supportive care for acute, antivirals +peg⍺-interferon for chronic.
Mx of HCV
C: supportive care for acute, direct acting antivirals for chronic.
Elbasvir/glecaprevir
Ritonvair + ribavirin
Which hepatic viruses can have serious complications and what are they
HBV HCV
HCC and cirrhosis
What are causes of transaminitis in the 1000’s (3)
Paracetamol overdose
Acute viral hepatitis (not B)
‘Ischaemic hit’
What does a raised GGT and ALP suggest
Cholestatic/obstructive picture, biliary damage GGT (EtOH)
What does a raised AST:ALT in a 2:1 ratio suggest
alcoholic hepatitis
What does low urea suggest
severe liver disease, (synthesised in liver), malnutrition, pregnancy
What does low albumin suggest
poor synthetic function of liver
What does a raised urea over 10 suggest (2)
UGIB (or large protein meal)
Dehydration/AKI (urea excreted renally)
What LFT pattern suggests:
paracetamol OD
Transaminitis in the 1000s
What LFT pattern suggests:
ischaemic hit
Transaminitis in the 1000s
What LFT pattern suggests:
viral hepatitis
Transaminitis in the 1000s
What LFT pattern suggests:
Cholestatic/obstructive picture
Raised GGT and ALP
What LFT pattern suggests: biliary damage (EtOH)
Raised GGT and ALP
What LFT pattern suggests:
alcoholic hepatitis
AST:ALT 2:1