Pursed-lip breathing is prescribed for a patient who has obstructive pulmonary disease for which of the following reasons?
a. It encourages the patient to take slow, deep breaths instead of rapid, shallow breaths.
b. It delivers a volume of air under pressure.
c. It prevents collapse of the smaller airways.
d. It increases the amount of oxygen taken into the lungs.
C
Pursed-lip breathing maintains positive pressure in the lungs during the expiratory phase and prevents collapse of the smaller airways. Deep-breathing exercises encourage the patient to take slow deep breaths instead of rapid, shallow breaths. Intermittent positive-pressure breathing machines deliver a volume of air under pressure.
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1. 1/4 cups 2. 1/2 cups 3. 3/4 cups 4. 1 cup
Which group would be best served by clinical nursing research?
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