If necessary to provide guidance to the approaching aircraft, use clock-based directional terms. Always consider the point of reference for the pilot (the nose of the aircraft) to be the:

Because hearing-impaired patients typically have more difficulty hearing high-frequency sounds, it is important for you to:

A. try basic sign language first. B. speak in a monotone voice. C. lower the pitch of your voice. D. increase the pitch of your voice.

During each cycle of normal resting ventilation, a volume of gas is moved into and out of the respiratory tract. This cyclical volume is called the:

a. inspiratory reserve volume (IRV). b. vital capacity (VC). c. residual volume (RV). d. tidal volume (VT).