A 62-year-old man on ICU is on controlled mechanical ventilation. The ventilator settings are VCV, TV 450 mL, RR 14, PEEP 8, FiO2 0.35. He is adequate...

Question

A 62-year-old man on ICU is on controlled mechanical ventilation. The ventilator settings are VCV, TV 450 mL, RR 14, PEEP 8, FiO2 0.35. He is adequately sedated with no spontaneous respiratory effort. The ventilator displays show: peak pressure 32 cmH2O, plateau pressure 22 cmH2O, and auto-PEEP (measured by end-expiratory hold) of 4 cmH2O. What is the true driving pressure?

Accepted Answer

22 - (8 + 4) = 10 cmH2O - the driving pressure should be calculated using total PEEP (set PEEP + auto-PEEP) to reflect the true end-expiratory alveolar pressure

Answer

32 - 8 = 24 cmH2O

Answer

22 - 8 = 14 cmH2O

Answer

32 - 22 = 10 cmH2O

Answer

Cannot be calculated

uk-fficm MCQ (SBA): Driving Pressure with Auto-PEEP