What is a contraindication for using CPAP?

The use of Continuous Positive Airway Pressure (CPAP) may be contraindicated in situations where patients are unable to cooperate or have severe hypoventilation. This is because CPAP relies on patient cooperation and effort to maintain effective ventilation. If a patient is unable to follow instructions or has significantly reduced respiratory effort, the positive pressure provided by CPAP may not be effective in improving ventilation or oxygenation.

Additionally, in the case of severe hypoventilation, the use of CPAP might not adequately address the underlying issue of inadequate ventilation, and the risk of further respiratory compromise could increase. Therefore, a lack of patient cooperation or severe hypoventilation clearly represents a scenario where CPAP would not be suitable, as it could potentially cause more harm than benefit in these situations.