What demonstrates a client's understanding of using an intranasal inhaler?

The statement that indicates a client's understanding of using an intranasal inhaler is that they should hold one nostril closed while inserting the spray into the other nostril. This technique helps to enhance the delivery of the medication to the nasal mucosa. By occluding one nostril, the spray can be targeted more effectively into the open nostril, which can improve absorption and maximize the therapeutic effects of the medication.

This method is also strategic in minimizing the medication's loss through the throat or the back of the mouth, ensuring that a greater portion reaches the nasal passages where it is needed. Proper technique is crucial for maximizing the efficacy of intranasal medications, making this understanding essential for effective self-administration.

Understanding the correct use of an intranasal inhaler is vital due to the specific ways the treatment is designed to work, and the statement reflects a clear grasp of the proper technique which facilitates optimal drug delivery.