Final answer:
The nurse should assess peripheral pulses once every 2 hours for a child in Bucks traction following a leg fracture.
Step-by-step explanation:
The correct action for the nurse to take is to assess peripheral pulses once every 2 hours (option C).
Assessing peripheral pulses every 2 hours is crucial for a child in Bucks traction following a leg fracture. This frequent monitoring helps to detect any signs of compromised circulation, such as decreased pulse rate or weak and thready pulses. By assessing the peripheral pulses regularly, the nurse can ensure that the child's blood flow to the leg is adequate and address any issues promptly.
Assessing peripheral pulses once every 2 hours ensures the nurse is closely monitoring the child's circulation and helps prevent complications associated with reduced blood flow to the leg.