This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetic and genetic disorders, Subject name: Pediatrics
The neonatal feature of cystic fibrosis is 
Select and explain. 
A. Bronchitis, B. Bronchiolitis, C. Meconeum ileus, D. Bronchiectasis
C: Meconeum ileus
Answer: C: Meconeum ileus 
Explanation: Meconium is the first stool (bowel movement) that a newborn has. This stool is very thick and sticky. Meconium ileus is a bowel obstruction that occurs when the meconium in your child&;s intestine is even thicker and stickier than normal meconium, creating a blockage in a pa of the small intestine called the ileum. Most infants with meconium ileus have a disease called cystic fibrosis. Reference: GHAI Essential pediatrics, 8th edition