Basic Life Support (BLS) Course B Progress Indicator: Question 1 of 25 1.  You have just entered a cardiac rehabilitation center.  You see a middle-aged man on a treadmill stumble off the treadmill, collapse to his knees, and then slump to the floor.  You are the first person to reach the man, and no one has responded to your shouts for help.  What is the first thing you should do?  (need help?) Choices: Activate the emergency response system; wait at the front door to direct the emergency responders Check for responsiveness; if the victim is unresponsive, activate the emergency response system, then return to the victim to begin CPR Place the victim in the recovery position until the arrival of emergency responders with appropriate equipment Give 2 slow mouth-to-mouth breaths