* You are working as a paramedic and stop for lunch at a burrito café. As you step out of your truck, a patron at an outside table suddenly stands up forcefully, tipping over the table and scattering plates and utensils. His face is plethoric and he looks panicked, but is not making a sound. He is grasping his throat with both hands. As you grab your carry out bag and run toward him, a burly diner jumps up, announces “I know Industrial First Aid” and immediately performs the Heimlich maneuver three times without success. As you reach his side, the patron lapses into unconscious, and is limp in the burly rescuer’s arms. The rescuer lowers the apneic, unconscious, cyanotic patron to the ground. You quickly realize that your best first maneuver is: