The Nurse Notes Thick, White Respiratory Secretions from a Client

The nurse notes thick, white respiratory secretions from a client who is receiving mechanical ventilation. Which of the following interventions will be most effective in resolving this problem?

A) Suction the client every hour.
B) Reposition the client every 2 hours.
C) Add additional water to the client's enteral feedings.
D) Instill 5 mL of sterile saline into the endotracheal tube (ET) before suctioning.