This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Pediatrics
Infant with cystic fibrosis (CF) are likely to develop 
Select and explain. 
A. Meconium ileus, B. Loose motions, C. Vomiting, D. Constpation
A: Meconium ileus
Answer: A: Meconium ileus 
Explanation: The common clinical presentations include meconium ileus in neonatal period,recurrent bronchiolitis in infancy and early childhod,recurrent respiratory tract infections ,chronic lung disease , bronchiectasis, steatorrhoea,with incresing age pancreatitis and azoospermia. Ref : Essential pediatrics,O.P.Ghai,7 th edition ,pg no:36