Which of the following types of industrial furnaces and ovens operates at approximately atmospheric pressure where no flammable volatiles or combustible materials are being heated?

Poorly chewed food is the most common cause of airway obstruction

Indicate whether the statement is true or false

You are out with a group of friends in a local tavern. One of the patrons gets argumentative and will not calm down. By the time the police arrive, the patron has gotten combative and is breaking glass bottles. The police subdue the patron and have him restrained. As you watch all of this happening, which of the following situations would cause you to be concerned?

a. The police have restrained the patron in a prone position on the floor. b. The patron is supine on the floor, with officers holding one of his hands over his head and the other at his side. c. The patron is threatening to sue the officers for physically restraining him. d. The police say they will not release the patron until he has been seen in an emergency department. c