From: Clinical review: Noninvasive ventilation in the clinical setting – experience from the past 10 years
Mask intolerance (discomfort or claustrophobia) |
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Inability to improve gas exchanges and dyspnea |
Hemodynamic instability or evidence of cardiac ischemia or ventricular dysarrhythmia |
Need for urgent endotracheal intubation (because of inadequate management of secretions and protection of the airways) |
Failure to improve mental status, within 30 min after the application of noninvasive ventilation, in agitated hypoxemic patients |