uk-fficm MCQ (SBA): ARDS

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HardRespiratory & VentilationARDSuk-fficm

A 56-year-old woman with ARDS has the following ventilator parameters: VCV, TV 360 mL, RR 28/min, PEEP 14 cmH2O, FiO2 0.7. Plateau pressure is 29 cmH2O. Minute ventilation is 10.1 L/min. ABG: pH 7.22, PaO2 8.5 kPa, PaCO2 8.2 kPa, HCO3 22 mmol/L. What is the dead space fraction (VD/VT) if PeCO2 (mixed expired CO2) is 2.8 kPa?

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uk-fficm MCQ: ARDS — Answer & Explanation | iatroX