Question 1
The nurse is teaching a client with a new diagnosis of COPD about pursed-lip breathing. What is the primary benefit of this technique?
- A. Increases oxygen intake.
- B. Reduces airway resistance.
- C. Slows the respiratory rate.
- D. Prevents hyperventilation.
Show answer and rationale
Correct answer: B — Reduces airway resistance.
The correct answer is B: Reduces airway resistance. Pursed-lip breathing helps to slow down the exhalation process, which in turn reduces the amount of air trapped in the lungs and decreases airway resistance. This technique promotes better oxygen exchange and helps the client breathe more efficiently. A: Increases oxygen intake - Pursed-lip breathing does not directly increase oxygen intake but rather improves the efficiency of oxygen exchange by reducing airway resistance. C: Slows the respiratory rate - While pursed-lip breathing may slow down the breathing pattern, the primary benefit is the reduction of airway resistance, not solely slowing the respiratory rate. D: Prevents hyperventilation - Pursed-lip breathing can help prevent hyperventilation by promoting more controlled breathing, but the primary benefit is the reduction of airway resistance for clients with COPD.