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Negative airway pressure alarm

Negative airway pressure alarm
Manifestations
  • Airway pressure less than zero
  • Collapsed reservoir bag or bellows
Potential causes
  • Patient factors
    • Patient generated inspiratory pressure with empty reservoir bag or ventilator bellows
  • Equipment factors
    • Suction applied below airway
      • Gastric tube in trachea
      • Tracheal/bronchial suction (eg, fiberoptic)
    • Suction applied above airway
      • Malfunctioning scavenger system
Suggested responses
  • Immediately disconnect airway from breathing system
  • Fill breathing system with oxygen flush or high fresh gas flows
Graphic 113675 Version 1.0

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