A 47-year-old man with moderate ARDS is ventilated with VCV, TV 6 mL/kg IBW (390 mL), PEEP 12 cmH2O, FiO2 0.6, RR 26/min. Plateau pressure is 28 cmH2O...

Question

A 47-year-old man with moderate ARDS is ventilated with VCV, TV 6 mL/kg IBW (390 mL), PEEP 12 cmH2O, FiO2 0.6, RR 26/min. Plateau pressure is 28 cmH2O. His nurse reports that the flow-time waveform on the ventilator shows a sinusoidal, irregular pattern superimposed on the set inspiratory flow. What does this finding most likely indicate?

Accepted Answer

Patient-ventilator dyssynchrony with spontaneous breathing effort during mandatory breaths

Answer

Auto-PEEP

Answer

Circuit leak

Answer

Cardiac oscillations transmitted to the airway

Answer

Ventilator sensor malfunction

uk-fficm MCQ (SBA): Patient-Ventilator Dyssynchrony