A nursing student is developing a plan of care for a client with a chest tube that is attached to a Pleur-Evac drainage system. Which intervention in the care plan indicates the need for further teaching for the student?
1) Position the client in semi-Fowler's position.
2) Add water to the suction chamber as it evaporates.
3) Instruct the client to avoid coughing and deep breathing.
4) Tape the connection sites between the chest tube and the drainage system.