ABSTRACT
Q1 Regarding intussusception, which of the following statements is true? A The most common age at presentation for children with idiopathic
intussusception is more than 2 years. B The most common age at presentation for children with secondary
intussusception is 3-6 months. C Adenovirus is a common aetiological factor in primary intussus-
ception. D The classic features of vomiting, abdominal pain, redcurrant
jelly stool and an abdominal mass on presentation, are seen in 30%–40% of children with intussusception.