Final answer:
To properly use a peak flow meter, the client should move the indicator to the top of the numbered scale before each reading, stand (not sit) while taking the readings, and repeat the procedure if coughing occurs.
Step-by-step explanation:
The nurse instructs the client diagnosed with asthma on the proper use of a peak flow meter. One of the key steps in using a peak flow meter correctly is to move the indicator to the top of the numbered scale before taking a measurement. This ensures that the device is zeroed and ready to accurately measure the peak expiratory flow rate (PEFR), which is a critical aspect of asthma management. While taking a reading, the person should be standing up to promote optimal lung function. If coughing occurs during the measurement, it is important to repeat the procedure to ensure accurate results. While daily monitoring is recommended, the specific frequency of readings should be determined by the patient's healthcare provider based on individual health needs.