Parasympathetic innervation of the heart causes:

A 34-year-old man has overdosed on an unknown drug and is unresponsive. His is breathing six times per minute and shallow. He has cyanosis around his lips and nail beds and he is cool to the touch. His breath sounds are diminished but clear. You should recognize which of the following conditions?

A) Hypoxia B) Tachypnea C) Apnea D) Dyspnea

In COPD, what maneuver is often used by patients to offset dynamic compression ?

a. pursed-lip breathing c. cough b. rapid breathing d. rapid shallow breathing