MECHANICAL VENTILATION AND
OXYGENATION STRATEGIES 2025 &
2026 COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS
What are ventilator settings such as f, VT, PSV, AP used for? - answerThey are used to
directly regulate a patient's ventilation and oxygenation.
What is the primary strategy to improve ventilation? - answerTo increase or decrease
one or more of the settings: f (frequency), VT (tidal volume), PSV (pressure support), or
AP (airway pressure).
What effect does alveolar hypoventilation have on respiratory status? - answerIt causes
respiratory acidosis and can lead to hypoxemia if supplemental oxygen is not provided.
What is the acceptable PaCO2 range for COPD patients? - answerThe acceptable
PaCO2 range is from 40 to 50 mm Hg due to chronic carbon dioxide retention.
What is the method to assess acceptable PaCO2 in COPD patients? - answerReview
the patient's PaCO2 obtained at the time of the most recent discharge from the hospital.
What is the most common method to reduce PaCO2 in a mechanically ventilated
patient? - answerIncrease the ventilator frequency.
What happens when the ventilator frequency is over 20/min? - answerThe incidence of
complications such as pneumothorax, air leak, atelectasis, and auto-PEEP is increased.
What is minute ventilation? - answerMinute ventilation = (ventilator Vt x ventilator f) +
(spontaneous Vt x spontaneous f).
Why is it undesirable to increase the ventilator tidal volume? - answerIncreasing tidal
volume can cause overdistention of the lungs and ventilator-induced lung injury.
What is the effect of pressure support ventilation on spontaneous tidal volume? -
answerIt increases spontaneous tidal volume, thereby increasing minute ventilation.
What is the role of PEEP in mechanical ventilation? - answerPEEP is used to prevent
alveolar collapse and improve oxygenation.
What is the treatment of choice for hypoxemia due to hypoventilation? - answerOxygen
therapy is the treatment of choice.
OXYGENATION STRATEGIES 2025 &
2026 COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS
What are ventilator settings such as f, VT, PSV, AP used for? - answerThey are used to
directly regulate a patient's ventilation and oxygenation.
What is the primary strategy to improve ventilation? - answerTo increase or decrease
one or more of the settings: f (frequency), VT (tidal volume), PSV (pressure support), or
AP (airway pressure).
What effect does alveolar hypoventilation have on respiratory status? - answerIt causes
respiratory acidosis and can lead to hypoxemia if supplemental oxygen is not provided.
What is the acceptable PaCO2 range for COPD patients? - answerThe acceptable
PaCO2 range is from 40 to 50 mm Hg due to chronic carbon dioxide retention.
What is the method to assess acceptable PaCO2 in COPD patients? - answerReview
the patient's PaCO2 obtained at the time of the most recent discharge from the hospital.
What is the most common method to reduce PaCO2 in a mechanically ventilated
patient? - answerIncrease the ventilator frequency.
What happens when the ventilator frequency is over 20/min? - answerThe incidence of
complications such as pneumothorax, air leak, atelectasis, and auto-PEEP is increased.
What is minute ventilation? - answerMinute ventilation = (ventilator Vt x ventilator f) +
(spontaneous Vt x spontaneous f).
Why is it undesirable to increase the ventilator tidal volume? - answerIncreasing tidal
volume can cause overdistention of the lungs and ventilator-induced lung injury.
What is the effect of pressure support ventilation on spontaneous tidal volume? -
answerIt increases spontaneous tidal volume, thereby increasing minute ventilation.
What is the role of PEEP in mechanical ventilation? - answerPEEP is used to prevent
alveolar collapse and improve oxygenation.
What is the treatment of choice for hypoxemia due to hypoventilation? - answerOxygen
therapy is the treatment of choice.
