Answer:
Call 911.
Step-by-step explanation:
The individual in case of the any emergency can call 911. 911 is the universal emergency number for the individuals of the united states. The emergency can be assisted with the medical emergency or any police assistance in the near by location.
The individual suffers from the chest pain and the pains get worse. In this case he should call the emergency number 911. The near by ambulance will provide the medical assistance and proper medical checkup of the individual. In case of the emergency he can be admitted to the hospital as well.
Thus, the answer is call 911.