A Patient Has Severe Emphysema That Has Extensively Damaged the Alveoli

question 23

Multiple Choice

A patient has severe emphysema that has extensively damaged the alveoli and reduced the surface of the respiratory membrane.Despite receiving oxygen therapy,she still has a tremendous urge to take a breath,that is,she doesn't feel as if she is getting enough air.This is because

• A)the oxygen stimulates the respiratory rate to increase even more.
• B)oxygen increases the stimulation of the carotid and aortic bodies.
• C)oxygen stimulates the vasomotor center,which results in vasoconstriction of blood vessels.
• D)even though she is receiving enough oxygen,carbon dioxide and hydrogen ions are accumulating in her blood and stimulating the respiratory center.
• E)pH increased in her blood,and over stimulated her respiratory center.

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The internal, covert activities that occur in the mind, such as thinking, remembering, and reasoning.

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The systematic pursuit of knowledge involving the observation, identification, description, experimental investigation, and theoretical explanation of phenomena.

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The actions or reactions of an object or organism, usually in relation to the environment.

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