Final answer:
The best intervention by the nurse would be to recognize the father's behavior as his attempt to cope with the situation.
Step-by-step explanation:
In this situation, the best intervention by the nurse would be to recognize the father's behavior as his attempt to cope with the situation. It is understandable that the father would be upset and anxious about his child's condition, and it is important for the nurse to show empathy and understanding. By acknowledging the father's emotions, the nurse can help create a supportive and calm environment for the family.