Becky is a nursing student who is completing her clinical rotation on a pulmonary unit. She is documenting her patient assessment. Which of the following best describes the movement of air in and out of the lungs?
A. Ventilation
B. Diffusion
C. Respiration
D. Perfusion
A
The lungs assist with ventilation, the movement of air in and out of the lungs, and diffusion, the movement of gases between air spaces and the bloodstream. Respiration is the exchange of oxy-gen and carbon dioxide during cellular metabolism. The heart supports perfusion, the movement of blood into and out of the lungs to the body's organs and tissues.
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