This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New born infants, Subject name: Pediatrics
[{'content': '2 days after bih, child developed respiratory distress and had scaphoid abdomen. Breath sounds were decreased on the left side. After bag and mask vantilation. ET tube was put and the maximal cardiac impulse shifted to the right side. What should be the next step in management ? \nSelect and explain. \nA. Confirm the position of endotracheal tube, B. Emergency surgery, C. Naso gastric tube inseion, D. Chest x-ray', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Since the cardiac impulse shifted to right side check with the position of the endotracheal tube. Reference: GHAI Essential pediatrics, 8th edition', 'role': 'assistant'}]