Question

A nurse in the intensive care unit is responding to a low-pressure limit mechanical ventilator alarm. The nurse will assess for which conditions that can trigger a low-pressure alarm

Answer 1

The nurse will assess for inadequate tracheostomy tube cuff inflation while responding to a low-pressure limit mechanical ventilator alarm.

• An alarm for excessive airway pressure indicates an issue with compliance or resistance.
• To stop the alarm and make sure the patient receives the predetermined number of breaths from the ventilator, turn up the upper limit on the alarm parameter first.

An audible and/or visual alert will trigger if the pressure inside the breathing circuit falls below the Low Airway Pressure Alarm limit specified on the ventilator. Low pressure alerts can be caused by, among other things:

• The patient's connection to the ventilator circuit breaks.

• inadequate tracheostomy tube cuff inflation

• nasal cushions, prongs, or invasive non-masks that don't fit well

• Circuit and tube connections that are loose

• The ventilator cannot supply the patient with as much air as they need.

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