A Patient Stumbles Through the Door Just as the Office

A patient stumbles through the door just as the office opens, and the provider is not in.He says he experienced a sharp blow to the stomach, is holding his abdomen, and then pitches forward and falls on the floor in the waiting room.As you go to the patient, you see he is not responding but has a rapid and weak pulse and shallow breathing.What is the next thing you do?

A) Take his vital signs. 
B) Try to revive him to see what happened. 
C) Do a quick exam to see whether there are injuries. 
D) Have a staff member call EMS. 
E) Call the provider on her cell phone.