Evaluation of the knowledge and correct use of meterd dose inhalers by health care professionals and medical students in Gauteng

Abstract

Background Uncontrolled asthma and chronic obstructive airway disease (COPD) is a frequent cause of emergency department visits and hospital admissions. Poor metered dose inhaler (MDI) technique is likely a major contributory cause. Objectives This study evaluated study participants' knowledge of MDI technique, and their compliance in checking and demonstrating MDI use, to patients on inhaled therapy. Methods A questionnaire was administered to doctors, nurses, and final year medical students at Helen Joseph Hospital and Chris Hani Baragwanath Academic Hospital in the Departments of Internal Medicine, Emergency Medicine and Pulmonology. Participants' use of a placebo MDI was also evaluated by a scoring system. Results The total sample of 195 participants comprised 130 (67%) females and 65 (33%) males. Of these, 133 (68%) were qualified medical staff, and 62 were final year medical students. Only 32 (16%) had adequate MDI technique. Over 50% of participants did not demonstrate MDI technique to patients, or check their patients' technique. Conclusion Health care professionals (HCPs) and final year medical students have poor knowledge of inhaler technique and are ill-prepared to teach patients. Also of concern is that the majority do not routinely demonstrate or observe patients’ inhaler technique.