A Patient with Moderate and Persistent Asthma Has Obtained Control

A patient with moderate and persistent asthma has obtained control with a formoterol inhaler q.i.d.for bronchospasm for several years.In the past couple of weeks, however, he has been reporting more chest tightness and wheezing during the day.He also uses a steroid inhaler and oral sustained-release zileuton.The nurse recognizes that the initial medical response to this challenge will be:

A) Discontinuation of the formoterol.
B) Discontinuation of the inhaled steroid.
C) Increasing the dose of formoterol.
D) Increasing the dose of the inhaled steroid.