paeds504

A 15-day old baby was brought to the emergency department with constipation for 4 days. On examination, the abdomen of the baby was found to be distended and tender all over. No bowel sounds were heard. A sigmoid colon biopsy was carried out, which showed absent ganglion cells. What is the diagnosis?

paeds497

Intracellular shifting of hydrogen ions can generate a metabolic alkalosis. In which of the following conditions is metabolic alkalosis caused by this mechanism ?

paeds499

A thin 16-year-old girl has bilateral parotid swelling with thickened calluses on the dorsum of her hand. What is the single most likely diagnosis?

paeds500

Conjugated bilirubin is converted and metabolised into urobilinogen before excretion. This metabolism takes place in which part of the body?

paeds501

In the treatment of infants with gastroenteritis, which of the following statements is the most accurate one?

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Which of the following does the inferior mesenteric artery supply?

paeds498

A baby is born to a mother who is known to have chronic hepatitis B. The mothers latest results are as follows:HBsAg: PositiveHBeAg: Positive.What is the most appropriate strategy for reducing the vertical transmission rate?

paeds496

Extracellular body fluid as compared with intracellular body fluid:

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Diffusion is the movement of molecules from a region of high concentration to a region of low concentration. Which of these changes will decrease the rate of diffusion of a substance?