Which best describes the purpose of pursed-lip breathing in the COPD patient?


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- To reduce the overall work of breathing

- To strengthen the muscles of the rib cage

- To balance the effects of carbon dioxide and oxygen in the bloodstream

- To exercise the muscles of the diaphragm


Pursed-lip breathing is a technique that may be used with some COPD patients to help facilitate easier work of breathing and improve gas exchange. Pursed-lip breathing has also been shown to keep the airways open longer and slow down breathing rates. To perform pursed-lip breathing, the patient breathes in through his nose and then breathes out slowly through puckered lips.

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