Final answer:
The nurse should allow the wife and daughters to visit the ICU at the patient's request, as family support is important for a patient's well-being and recovery.
Step-by-step explanation:
The nurse should allow the wife and daughters to visit the ICU at the patient's request. Family support is important for a patient's well-being and recovery, especially in a stable condition. Allowing the wife and daughters to visit provides emotional support and can positively impact the patient's mood and psychological state. It is important to balance the patient's desire to see family members with the need to maintain a controlled environment in the intensive care unit.