<unk>  cannot be used in the following situations or conditions: * A person is not breathing on their own * A person is uncooperative or anxious * A person cannot protect their own airway (i.e., has altered consciousness for reasons other than sleep, such as extreme illness, intoxication, coma, etc.) * A person is not stable due to respiratory arrest * A person has experienced facial trauma or facial burns * A person who has had previous facial, esophageal, or gastric surgery may find this a difficult or unsuitable treatment option
Continuous positive airway pressure
Positive airway pressure
Airway clearance therapy
Oxygen therapy
Hyperinflation therapy
Mechanical ventilation
Intermittent positive pressure breathing
Pulmonary hygiene