, 1. Mechanical ventilation is commonly indicated in all of the following conditions except
a. pneumothorax.
b. drug overdose.
c. status asthmaticus.
d. thoracic surgery.
**Correct Answer:** A
**Rationale:** A
2. During spontaneous breathing, air is drawn into the lungs by
a. collapsing alveoli.
b. low oxygen levels.
c. negative pressure.
d. positive pressure
**Correct Answer:** C
**Rationale:** C
3. For a patient on mechanical ventilation, total collapse of the alveoli can be prevented by
a. low tidal volumes.
b. PEEP.
c. an inspiratory/expiratory (I/E) ratio of 1:2.
d. low FIO2.
**Correct Answer:** B
**Rationale:** B
a. pneumothorax.
b. drug overdose.
c. status asthmaticus.
d. thoracic surgery.
**Correct Answer:** A
**Rationale:** A
2. During spontaneous breathing, air is drawn into the lungs by
a. collapsing alveoli.
b. low oxygen levels.
c. negative pressure.
d. positive pressure
**Correct Answer:** C
**Rationale:** C
3. For a patient on mechanical ventilation, total collapse of the alveoli can be prevented by
a. low tidal volumes.
b. PEEP.
c. an inspiratory/expiratory (I/E) ratio of 1:2.
d. low FIO2.
**Correct Answer:** B
**Rationale:** B
