Abdominal Core Conditions Flashcards
Which of these patients are most likely to develop cholelithiasis?
A) 25 year old male of Chinese ethnicity
B) 55 year old white female (normal BMI)
C) 40 year old black male
D) 70 year old white female (BMI > 30)
Ans: D. F>M (2/3 times more likely), obesity increases risk, incidence peaks 70-79 YO
What is the most common type of gallstone?
A) cholesterol stones,
B) black pigment stones,
C) brown pigment stones,
D) red pigment stones
Ans: A. Occurs 90% of the time. Black pigment stones occur 2% of the time. Red pigment stones don’t exist.
Which of these is/are not factor(s) contributing to cholesterol stone deposition?
A) cholesterol supersaturation of bile (relative to solubising agents
B) crystallisation-promoting factors within bile
C) chronic haemolytic anaemia causing Hb to spill into blood (more haem > more unconjugated bilirubin)
D) gallbladder hypomobility
Ans: C. This is the cause of black pigment stones forming, not cholesterol stones
What are black pigment stones made of?
Calcium bilirubinate
A 55 y.o. female patient comes in with RUQ/epigastric pain lasting over 30 min after having cheese fondue for dinner. No N/V, no guarding or rigidity, Murphy’s sign is negative. What do you suspect she has?
A) Cholangitis
B) Cholecystitis
C) Biliary colic due to cholelithiasis
D) Appendicitis
C.
Which of these would you expect to see on the LFTs of a pt with cholecystitis?
A) raised ALP
B) normal serum bilirubin
C) low AST
D) low ALT
A.
ALP + bilirubin produced by cells lining the bile canaliculi
Which of these are not a typical symptom of biliary colic?
A) RUQ/epigastric pain
B) Pain comes on after consuming fatty foods
C) RUQ tenderness with guarding + rigidity
D) Pain radiates to right shoulder & subscapular region
C. This usually only occurs in cholecystitis.
Where is recurrent pyogenic cholangitis endemic to?
A) East Asia
B) South Asia
C) Southeast Asia
D) Middle East
C.
Which of the following are not a risk factor for developing acute cholangitis?
A) Cholelithiasis
B) Strictures
C) Female
D) Age > 50
C. Unlike cholelithiasis, cholangitis has an equal male:female ratio
What are the 3 most common causes of acute cholangitis in order?
1) Choledocholithiasis (i.e. stone in the common bile duct), 2) ERCP
3) tumour
What is Charcot’s triad and what is it indicative of?
RUQ pain, fever, jaundice, classical symptoms of ascending cholangitis although all 3 are only present in a minority of patients
What is Reynold’s pentad?
Charcot’s triad + mental status change + sepsis
What is ascending cholangitis important to distinguish from in pregnant women?
HELLP syndrome. Haemolysis, Elevated Liver enzymes, Low Platelet count.
Which of these are a 1st line investigation for suspected acute cholangitis?
A) transabdominal USS B) MRCP C) abdominal x-ray D) abdominal CT scan E) ERCP F) coagulation screen
A, E and F. You may see a prolonged PT time if obstruction has occurred over several days
Which of these treatments are suitable for a patient with diagnosed ascending cholangitis secondary to choledocholithasis who is severely ill
A) ERCP with stone removal
B) ERCP with stent insertion without stone removal
C) Cholecystectomy with CBD exploration
B. stone and stent removal should follow in a few days after the acute episode
Which of these is the most common cause of small bowel obstruction in adults?
A) appendicitis
B) hernia
C) malignancy
D) adhesions
D. It causes 80% of SBOs in adults this is followed by hernia then malignancy. In children, appendicitis is most common.
What percentage of patients who have undergone previous abdominal surgery is at risk of small bowel obstruction?
A) 20%
B) 40%
C) 60%
D) 80%
C. It is a major risk factor for developing SBO.