A patient has a prescription for a medication that is administered via an inhaler.To determine whether the patient requires a spacer for the inhaler,the nurse will determine the:

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Because use of a metered-dose inhaler (MDI)requires coordination during the breathing cycle,many patients spray only the back of their throats and fail to receive a full dose.The inhaler must be depressed to expel medication just as the patient inhales.This ensures that the medication reaches the lower airways.Poor coordination can be solved by the use of spacer devices (Aerochamber,InspirEase)or a breath-activated MDI,such as the Maxair Autoinhaler.
The use of a spacer is not dependent on the dosage of medication or the schedule of administration.Spacers are not required with the use of a DPI.

A Patient Has a Prescription for a Medication That Is