What Is the Ideal Breathing Pattern for IPPB Therapy

What is the ideal breathing pattern for IPPB therapy?

A) Instruct the patient to inhale, which will trigger the respirator. Tell the patient to inhale with the ventilator. At the end of the inspiratory phase, instruct the patient to pause briefly before exhaling, to allow for a more even deposition of the aerosol. Have the patient exhale passively.
B) Instruct the patient to inhale and exhale passively. This will eliminate any air trapping.
C) Instruct the patient to inhale, which will trigger the respirator. Tell the patient to inhale with the ventilator. Have the patient exhale actively to eliminate any air that may have been trapped during inhalation..
D) Instruct the patient to exhale completely, inhale actively with the ventilator. At the end of the inspiratory phase, instruct the patient have the patient exhale passively.