Which of the Following Are Goals of Mechanical Ventilation

Multiple Choice

Which of the following are goals of mechanical ventilation?
1) To provide support to the pulmonary system to maintain an adequate level of alveolar ventilation
2) To reduce the WOB until the cause of respiratory failure can be eliminated
3) To restore ABG levels to normal
4) To prevent or treat atelectasis with adequate end-inspiratory lung inflation

A) 1 and 2 only
B) 1 and 3 only
C) 1, 2, and 3 only
D) 1, 2, and 4 only