Clinical Research Directory

Inclusion criteria for the study: * Age ≥ 65 years old * Having at least basic literacy, * Receiving metered-dose inhaler therapy for at least 6 months, * Being hospitalized in the pulmonary ward, * Presenting to the pulmonary function test unit, * Presenting to the pulmonary outpatient clinic, * Signing the informed consent form for participation in the study, * Having internet access and a mobile device with Android/iOS operating system, * Being able to use a telephone, * Having no communication barriers, * Being able to use the inhaler without needing assistance, * Making an error in at least one of the usage steps according to the MDI usage skills chart. Exclusion criteria for the study: * Age \<65 * Illiteracy * Receiving metered-dose inhaler therapy for \<6 months * Outpatient treatment * Being hospitalized in the intensive care unit * Being hospitalized in wards other than the pulmonary ward (such as surgery, physical therapy) * Visiting outpatient clinics other than the pulmonary clinic (such as surgery, physical therapy) * Not signing the informed consent form for participation in the study * Not having internet access and a mobile device with Android/iOS operating system * Not having telephone skills * Having communication barriers * Requiring assistance while using the inhaler * Not making any errors in the usage steps according to the MDI usage skills chart * Wanting to withdraw from the study/withdrawing from participation during the research process * Not completing the questionnaire