Mechanical ventilation management Exam
question
and correct answers (verified answers 100%)
Q&A 2026/2027 INSTANT DOWNLOAD PDF
1. Which ventilator mode delivers a preset tidal volume with every mandatory
breath?
A. Pressure Support Ventilation (PSV)
B. Volume-Control Ventilation (VCV)
C. CPAP
D. BiPAP
Answer: B. Volume-Control Ventilation (VCV)
Rationale: VCV guarantees delivery of a preset tidal volume regardless of airway
pressure changes.
2. What is the primary goal of mechanical ventilation?
A. Eliminate all spontaneous breathing
B. Improve gas exchange and reduce work of breathing
C. Increase heart rate
D. Reduce blood pressure
Answer: B. Improve gas exchange and reduce work of breathing
Rationale: Mechanical ventilation supports oxygenation and ventilation while
decreasing respiratory muscle workload.
3. Which parameter is most important when assessing oxygenation?
,A. Respiratory rate
B. PaO₂
C. Heart rate
D. Urine output
Answer: B. PaO₂
Rationale: PaO₂ reflects the amount of oxygen dissolved in arterial blood and is a
key measure of oxygenation.
4. What does PEEP stand for?
A. Positive End-Expiratory Pressure
B. Peak End-Expiratory Pressure
C. Pulmonary Expiratory End Pressure
D. Positive End-Exercise Pressure
Answer: A. Positive End-Expiratory Pressure
Rationale: PEEP maintains alveolar recruitment and improves oxygenation by
preventing alveolar collapse.
5. A patient with severe ARDS should generally receive what tidal volume?
A. 10–12 mL/kg
B. 8–10 mL/kg
C. 6 mL/kg predicted body weight
D. 15 mL/kg
Answer: C. 6 mL/kg predicted body weight
Rationale: Low tidal volume ventilation reduces ventilator-induced lung injury in
ARDS.
6. What is the normal target plateau pressure in ventilated patients?
,A. Less than 30 cm H₂O
B. Less than 50 cm H₂O
C. Less than 60 cm H₂O
D. Less than 70 cm H₂O
Answer: A. Less than 30 cm H₂O
Rationale: Maintaining plateau pressure below 30 cm H₂O helps prevent lung
overdistension.
7. Which ventilator alarm indicates increased airway resistance?
A. High-pressure alarm
B. Low-volume alarm
C. Apnea alarm
D. Battery alarm
Answer: A. High-pressure alarm
Rationale: Increased airway resistance from secretions, bronchospasm, or tube
obstruction raises airway pressure.
8. Which condition commonly causes auto-PEEP?
A. Asthma
B. Hypothyroidism
C. Anemia
D. Hypertension
Answer: A. Asthma
Rationale: Air trapping due to obstructive lung disease can lead to intrinsic PEEP.
9. What is the most accurate method to confirm endotracheal tube placement?
, A. Chest rise
B. Breath sounds
C. End-tidal CO₂ monitoring
D. Pulse oximetry
Answer: C. End-tidal CO₂ monitoring
Rationale: Continuous capnography is the gold standard for confirming tracheal
placement.
10. Which ventilator mode allows spontaneous breaths with pressure
assistance?
A. Pressure Support Ventilation
B. Assist-Control only
C. SIMV without support
D. CPR mode
Answer: A. Pressure Support Ventilation
Rationale: PSV augments spontaneous breathing by providing a preset pressure
level.
11. Which blood gas value indicates respiratory acidosis?
A. pH 7.50, PaCO₂ 30 mmHg
B. pH 7.30, PaCO₂ 55 mmHg
C. pH 7.45, PaCO₂ 40 mmHg
D. pH 7.48, PaCO₂ 25 mmHg
Answer: B. pH 7.30, PaCO₂ 55 mmHg
Rationale: Elevated PaCO₂ with low pH indicates respiratory acidosis.
12. What is the usual first intervention for a ventilator high-pressure alarm?
question
and correct answers (verified answers 100%)
Q&A 2026/2027 INSTANT DOWNLOAD PDF
1. Which ventilator mode delivers a preset tidal volume with every mandatory
breath?
A. Pressure Support Ventilation (PSV)
B. Volume-Control Ventilation (VCV)
C. CPAP
D. BiPAP
Answer: B. Volume-Control Ventilation (VCV)
Rationale: VCV guarantees delivery of a preset tidal volume regardless of airway
pressure changes.
2. What is the primary goal of mechanical ventilation?
A. Eliminate all spontaneous breathing
B. Improve gas exchange and reduce work of breathing
C. Increase heart rate
D. Reduce blood pressure
Answer: B. Improve gas exchange and reduce work of breathing
Rationale: Mechanical ventilation supports oxygenation and ventilation while
decreasing respiratory muscle workload.
3. Which parameter is most important when assessing oxygenation?
,A. Respiratory rate
B. PaO₂
C. Heart rate
D. Urine output
Answer: B. PaO₂
Rationale: PaO₂ reflects the amount of oxygen dissolved in arterial blood and is a
key measure of oxygenation.
4. What does PEEP stand for?
A. Positive End-Expiratory Pressure
B. Peak End-Expiratory Pressure
C. Pulmonary Expiratory End Pressure
D. Positive End-Exercise Pressure
Answer: A. Positive End-Expiratory Pressure
Rationale: PEEP maintains alveolar recruitment and improves oxygenation by
preventing alveolar collapse.
5. A patient with severe ARDS should generally receive what tidal volume?
A. 10–12 mL/kg
B. 8–10 mL/kg
C. 6 mL/kg predicted body weight
D. 15 mL/kg
Answer: C. 6 mL/kg predicted body weight
Rationale: Low tidal volume ventilation reduces ventilator-induced lung injury in
ARDS.
6. What is the normal target plateau pressure in ventilated patients?
,A. Less than 30 cm H₂O
B. Less than 50 cm H₂O
C. Less than 60 cm H₂O
D. Less than 70 cm H₂O
Answer: A. Less than 30 cm H₂O
Rationale: Maintaining plateau pressure below 30 cm H₂O helps prevent lung
overdistension.
7. Which ventilator alarm indicates increased airway resistance?
A. High-pressure alarm
B. Low-volume alarm
C. Apnea alarm
D. Battery alarm
Answer: A. High-pressure alarm
Rationale: Increased airway resistance from secretions, bronchospasm, or tube
obstruction raises airway pressure.
8. Which condition commonly causes auto-PEEP?
A. Asthma
B. Hypothyroidism
C. Anemia
D. Hypertension
Answer: A. Asthma
Rationale: Air trapping due to obstructive lung disease can lead to intrinsic PEEP.
9. What is the most accurate method to confirm endotracheal tube placement?
, A. Chest rise
B. Breath sounds
C. End-tidal CO₂ monitoring
D. Pulse oximetry
Answer: C. End-tidal CO₂ monitoring
Rationale: Continuous capnography is the gold standard for confirming tracheal
placement.
10. Which ventilator mode allows spontaneous breaths with pressure
assistance?
A. Pressure Support Ventilation
B. Assist-Control only
C. SIMV without support
D. CPR mode
Answer: A. Pressure Support Ventilation
Rationale: PSV augments spontaneous breathing by providing a preset pressure
level.
11. Which blood gas value indicates respiratory acidosis?
A. pH 7.50, PaCO₂ 30 mmHg
B. pH 7.30, PaCO₂ 55 mmHg
C. pH 7.45, PaCO₂ 40 mmHg
D. pH 7.48, PaCO₂ 25 mmHg
Answer: B. pH 7.30, PaCO₂ 55 mmHg
Rationale: Elevated PaCO₂ with low pH indicates respiratory acidosis.
12. What is the usual first intervention for a ventilator high-pressure alarm?
