The alarm detects abnormally high inspiratory pressure and may activate in response to:
Kinks in the patient circuit or tracheostomy tube
Water in the ventilator circuit
Increased mucus or other secretions blocking the airway
Bronchospasm, or narrowing of the patient’s airway
Coughing, gagging or “fighting” the ventilator breath
Pneumonia or other changes in lung condition that affect airway resistance or lung compliance