A Comparison of Various Types of Patient Instruction in the Proper Administration of Metered Inhalers

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Abstract
The administration technique employed by 42 inpatients using metered inhalers was observed. Proper performance of the six steps recommended by the manufacturer provided the guidelines for correct administration. The degree of compliance with proper technique was defined as the number of steps correctly executed by the patient. The mean number of steps correctly performed was 2.9 out of the possible six (48.3 percent). Twenty-four patients were then randomized into one of three groups. Group 1 received the manufacturer's instruction sheet, Group 2 received counseling from a pharmacist, and Group 3 received both the manufacturer's instruction sheet and counseling from a pharmacist. There was a significant improvement in the postinstruction technique in Groups 2 and 3, while Group 1 failed to demonstrate any significant improvement. Comparisons were then made among the three groups. No significant difference was found between Group 2 and Group 3. However, both Groups 2 and 3 were found to be significantly different ( p < 0.05) from Group 1. This study shows that pharmacist counseling can significantly improve the degree of patient compliance in the administration of metered inhalers.