A 50-year-old woman with severe ARDS has been on prone positioning for 16 hours daily for 4 days. Her PaO2/FiO2 ratio improves to 165 mmHg in the supi...

Question

A 50-year-old woman with severe ARDS has been on prone positioning for 16 hours daily for 4 days. Her PaO2/FiO2 ratio improves to 165 mmHg in the supine position for 6 consecutive hours. She remains on TV 6 mL/kg, PEEP 10, FiO2 0.45. Driving pressure is 12 cmH2O. What criteria suggest she can stop prone positioning?

Accepted Answer

PaO2/FiO2 >150 mmHg sustained in the supine position for at least 4 hours after a prone session, with stable or improving ventilatory parameters

Answer

Prone positioning must continue for a minimum of 14 days regardless of improvement

Answer

Only when FiO2 is reduced to 0.21

Answer

Only when PEEP is zero

Answer

Prone positioning can never be stopped until extubation

uk-fficm MCQ (SBA): ARDS - Prone Positioning