Monday 26 October 2015

Tricky Gastroenterology Objective Type Questions And Answers

61- A 60-year-old woman with known alcoholic liver cirrhosis presents with vague abdominal pains, malaise and nausea. She has been abstinent since she was diagnosed eight months ago. On examination she had moderate ascites and mild, generalised abdominal tenderness.
Investigations
Haemoglobin 11.2 g/dL (11.5 - 16.5)
WCC 15 x 10 9/L (4 - 11)
prothrombin time 21 s (<15s)
serum albumin 28 g/L (37 - 49)
serum total bilirubin 56 micromol/L (1 - 22)
ascitic fluid protein 26 g/L
ascitic fluid amylase normal
ascitic fluid white cell count 500 x 109/L
What is the most likely reason for her current problem?
1) hepatic vein thrombosis
2) pancreatic pseudocyst rupture
3) portal vein thrombosis
4) primary liver cancer
5) spontaneous bacterial peritonitis
Answers-5

62- A 68-year-old man has been very ill for months following the onset of chronic liver disease with hepatitis C infection. He experiences a sudden loss of consciousness and then exhibits paraplegia on the right. A cerebral angiogram reveals lack of perfusion in the left middle cerebral artery distribution. The most likely cardiac lesion to be associated with this finding is?
1) Acute rheumatic fever
2) Left atrial myxoma
3) Libman-Sacks endocarditis
4) Non-bacterial thrombotic endocarditis
5) Paradoxical thromboembolus
Answers-4

63- Which of the following concerning the conjugation of bilirubin is correct?
1) is catalysed by a glucuronyl transferase
2) occurs in the Kupfer cells of the liver
3) is increased by valproate
4) is inhibited by rifampicin
5) is impaired in Dubin-Johnson syndrome
Answers-1

64-A 42-year-old female with Ulcerative Colitis is found to have anti219 smooth muscle antibodies. Which is the next most appropriate test for this patient?
1) Abdominal Ultrasound
2) Colonoscopy
3) Full blood count
4) Liver biopsy
5) Liver function tests
Answers-5

65-Twenty one people are on a Nile boat cruise and present one week into their cruise with diarrhoea. What is the most likely causative organism?
1) Campylobacter
2) Cryptosporidium parvum
3) Entamoeba histolytica
4) Giardia lamblia
5) Shigella species
Answers-5

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