What is the best method to determine if a patient understands instructions for MDI use?

The best method to determine if a patient understands instructions for the use of a metered-dose inhaler (MDI) is to ask the patient to do a return demonstration. This method is effective because it not only assesses the patient's understanding of the instructions but also provides an opportunity for the instructor to observe the patient's technique in real time. By performing a return demonstration, the patient actively engages in the learning process, which reinforces their understanding and retention of the information.

Through the demonstration, instructors can identify any mistakes or misunderstandings in technique or handling of the device that may not be caught through verbal assessments. This practical application ensures the patient can effectively use the MDI in their own care.

While other options, such as having the patient explain the directions or writing down the instructions, can provide some insight into understanding, they may not fully capture the functional use of the device. A return demonstration allows for immediate correction and feedback, thereby supporting better patient outcomes in medication delivery.