The nurse is teaching a client with emphysema how to do pursed-lip breathing. What is the expected outcome of using pursed-lip breathing?
1. Increased oxygenation.
2. Prolonged exhalation.
3. Absence of respiratory infection.
4. Relief from shortness of breath.
The primary reason for instructing the client with emphysema about how to pursed-lip breathe is to prolong exhalation. Prolonging exhalation helps to prevent bronchiolar collapse and the trapping of air. It does not directly prevent respiratory infection.
Because pursed-lip breathing affects the expiratory phase of the respiratory cycle, it does not affect oxygenation. It may decrease shortness of breath, but this is not the primary reason for the technique.
CN: Reduction of risk potential; CL: Apply
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