Why is permissive hypercapnia sometimes allowed in acute respiratory failure due to ARDS?
Show answer and explanation
Correct answer: Lower tidal volumes raise CO₂, so moderate hypercapnia is accepted to protect the lungs
Lung-protective ventilation uses lower tidal volumes; to avoid high pressures, moderate hypercapnia (permissive) may be accepted to reduce ventilator‐induced lung injury.
Practice all 15 Respiratory Failure, ARDS and Ventilation questions
Keep practicing
More Respiratory Failure, ARDS and Ventilation questions
- According to ARDS guidelines, which tidal volume is most appropriate?
- To reduce lung injury in ARDS, plateau pressure should be limited to which value?
- What scenario does a PaO₂/FiO₂ ratio of 120 mmHg with bilateral infiltrates indicate?
- When is prone positioning recommended in the management of ARDS?
- What strategy is recommended for fluid management in ventilator‐associated respiratory failure due to ARDS?
- What should be considered as the primary cause when a ventilator displays high peak pressures and low tidal volumes delivered?