A Patient with Asthma Asks the Purpose of Learning How

question 18

Multiple Choice

A patient with asthma asks the purpose of learning how to use a peak expiratory flow rate (PEFR) device.What is the nurse's best response regarding PEFR?

• A) Dilates the bronchi to relieve dyspnea
• B) Measures expired air to evaluate ventilation
• C) Soothes inflamed bronchi, reducing spasm
• D) Liquefies sputum for easier expectoration

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