When Should the Therapist Administer Short-Acting Bronchodilators to Improve Penetration

When should the therapist administer short-acting bronchodilators to improve penetration of inhaled antibiotics?

A) Immediately after the antibiotic
B) No more than 4 hours after administration of the antibiotic
C) 15 minutes to 4 hours before each dose
D) At the same time as the administration of the antibiotic