Nokea
These causes often cause secretory diarrhoea except:
- A. Lactose intolerance
- B. E. coli infection
- C. Congenital chloridorrhoea
- D. Blind loop syndrome
Correct Answer: A
Rationale: The correct answer is A because lactose intolerance causes osmotic diarrhoea, not secretory diarrhoea. The other options (b-e) are causes of secretory diarrhoea.
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Inability to do which of the following in a 20-month child is cause for concern?
- A. Speak in clear two to three word phrases
- B. Walk unaided
- C. Kick a ball
- D. Build a tower of 8 blocks
Correct Answer: B
Rationale: Inability to walk unaided by 20 months is a red flag for developmental delay. Other skills are more variable and less concerning if delayed.
In congenital hypertrophic pyloric stenosis:
- A. Conjugated hyperbilirubinaemia may be seen
- B. Hypokalaemia is due to vomiting
- C. Blood pH is high and urinary pH is low
- D. First-born males are commonly affected
Correct Answer: B
Rationale: Hypokalaemia in congenital hypertrophic pyloric stenosis is typically due to the loss of potassium through vomiting.
Clubbing is found in:
- A. Crohn's disease
- B. Bronchiectasis
- C. Rheumatic fever
- D. Infective endocarditis
Correct Answer: B
Rationale: Clubbing is commonly associated with chronic respiratory conditions such as bronchiectasis, due to chronic hypoxia and inflammation.
Which of the following is the proposed algorithm for the evaluation of causes of r′ in V1 and V2?
- A. Wernicke algorithm
- B. Vereckei algorithm
- C. Brugada algorithm
- D. Baranchuk algorithm
Correct Answer: B
Rationale: The Vereckei algorithm is commonly used for the evaluation of r′ in V1 and V2, helping to differentiate between causes of early repolarization.
Rare causes of bloody diarrhoea include:
- A. Campylobacter infection
- B. Peutz-Jegher's syndrome
- C. Enterotoxigenic E. coli
- D. Crohn's disease
Correct Answer: B
Rationale: Rare causes of bloody diarrhoea include conditions like Peutz-Jegher's syndrome which is a genetic disorder causing polyps in the gastrointestinal tract. Campylobacter Shigella and Enterotoxigenic E. coli are common causes of infectious diarrhoea while Crohn's disease is a chronic inflammatory condition.