Final answer:
In a fall-related emergency situation where the patient stops responding during a physical exam, the next step is to start CPR.
Step-by-step explanation:
In a situation where a patient involved in a fall stops responding during a physical exam, the next step would be to start CPR. This is because CPR can help maintain blood flow and oxygenation to the vital organs until medical help arrives. It is crucial to begin CPR as soon as possible to increase the chances of the patient's survival.