What information would a home care nurse provide to a client who is measuring peak expiratory flow rate at home?
A) "Although the test is uncomfortable, it is not painful."
B) "You will be asked to forcefully exhale into a mouthpiece."
C) "The test is used to determine how much air you inhale."
D) "You will do this each morning while still lying in bed."
Ans: B
Peak expiratory flow rate (PEFR) refers to the volume of air that can be forcibly exhaled. While sitting or standing, the client takes a deep breath and forcibly exhales through a mouthpiece. The client does this three times, and the highest number is recorded. Clients commonly measure PEFR at home to monitor airflow when they have conditions such as asthma.
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