A child with suspected intussusception presents with intermittent severe abdominal pain, drawing up knees to chest, and 'currant jelly' stools. The most appropriate initial diagnostic study is:
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CAir or water-soluble contrast enema (both diagnostic and therapeutic)
DUpper GI barium study
✓ Correct answer: C. Air or water-soluble contrast enema (both diagnostic and therapeutic)Intussusception (telescoping of bowel) is diagnosed and often treated with an air or hydrostatic (water-soluble contrast) enema under fluoroscopy. This is both diagnostic and therapeutic (reduces the intussusception in 75–90% of cases). 'Currant jelly' stool is a classic but late sign.
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