When developing the plan of care for a child with cystic fibrosis (CF) who is scheduled to receive postural drainage, the nurse should anticipate performing postural drainage at which of the following...

When developing the plan of care for a child with cystic fibrosis (CF) who is scheduled to receive postural drainage, the nurse should anticipate performing postural drainage at which of the following times?

1. After meals.

2. Before meals.

3. After rest periods.

4. Before inhalation treatments.