People with severe cases of ________ may find it difficult to hear, work, or even sleep

You arrive at the scene of a possible unconscious patient located in a lab setting. On the exterior of the room there is a NFPA diamond with a 4 in the blue portion of the diamond. This is an:

A. extreme health hazard B. extreme fire hazard C. extreme reactivity hazard D. extreme water reactivity

What is the movement of small volumes of air back and forth in the respiratory tract at high fre-quencies (12 to 25 Hz) called?

a. Tidal breathing b. Active cycle breathing c. Oscillation d. Huffing