A 65-year-old man on ICU has a diagnosis of acute respiratory failure from obesity hypoventilation syndrome (OHS). ABG on admission: pH 7.28, PaO2 6.5...

Question

A 65-year-old man on ICU has a diagnosis of acute respiratory failure from obesity hypoventilation syndrome (OHS). ABG on admission: pH 7.28, PaO2 6.5 kPa, PaCO2 10.5 kPa, HCO3 36 mmol/L, BE +10. He is alert and cooperative. BMI is 52. What is the first-line ventilatory support?

Accepted Answer

Non-invasive ventilation (bilevel: IPAP/EPAP) with supplemental oxygen

Answer

Intubation and invasive mechanical ventilation

Answer

CPAP alone at 10 cmH2O

Answer

High-flow nasal oxygen at 60 L/min

Answer

Oxygen via face mask at 15 L/min

uk-fficm MCQ (SBA): Obesity Hypoventilation Syndrome

A 65-year-old man on ICU has a diagnosis of acute respiratory failure from obesity hypoventilation syndrome (OHS). ABG on admission: pH 7.28, PaO2 6.5 kPa, PaCO2 10.5 kPa, HCO3 36 mmol/L, BE +10. He is alert and cooperative. BMI is 52. What is the first-line ventilatory support?