Which Principle(s)would Be When Teaching a Patient to Use a Steroid

Which principle(s) would be when teaching a patient to use a steroid inhaler? (Select all that apply.)

A) Frequent oral hygiene is necessary.
B) The inhaler should be used on a PRN basis only.
C) Rinse and spit after inhalation of the medication.
D) When taking a steroid drug as well as a bronchodilator,the bronchodilator should be administered first.
E) Hold the breath for 10 seconds during inhalation of the medication.