Which of the following modes of ventilatory support would result in the highest mean airway pressure?
a. Volume-controlled intermittent mandatory ventilation
b. (Volume-controlled intermittent manda-tory ventilation) + pressure-supported ventilation
c. Pressure-controlled intermittent mandato-ry ventilation
d. Volume-controlled continuous mandatory ventilation
ANS: D
Because every breath is volume controlled, mean airway pressure tends to be greater compared with the mean airway pressure with synchronized intermittent mandatory ventilation and pres-sure-supported ventilation, and pulmonary arterial pressure and cardiac output may be lower.
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