As an asthma educator, you are teaching a patient newly diagnosed with asthma and her family about the use of a peak flow meter. What does a peak flow meter measure?
A) Highest airflow during a forced inspiration
B) Highest airflow during a forced expiration
C) Highest airflow during a normal inspiration
D) Highest airflow during a normal expiration
Ans: B
Feedback: Peak flow meters measure the highest airflow during a forced expiration. Therefore, options A, C, and D are incorrect.
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