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Monitoring with the Vision. Alarms. Alarm Overview. Alarm: Warning Signal of an Event Event: A Noteworthy Happening An abnormal clinical occurrence Requiring clinical awareness or action. Alarm Overview. Events Are Related To: Technical performance of the ventilator system or
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Monitoring with the Vision Alarms
Alarm Overview • Alarm: Warning Signal of an Event • Event: A Noteworthy Happening • An abnormal clinical occurrence • Requiring clinical awareness or action
Alarm Overview • Events Are Related To: • Technical performance of the ventilator system or • Patient’s clinical condition
Alarm Overview Two Types of Alarms • System • Adjustable
Alarm Overview • Alarm Indications • Visual • Audible • Two Tones • Alarm Reset • Manual • Self-canceling • Nurse Call/Remote
System Alarms • Check Ventilator Performance • Preset and Not Adjustable • Continuous Tone
System Alarms • Ventilator Inoperative • Check Ventilator • Pressure Regulation • Proximal Pressure Line • O2 Flow • Exhalation Port • Disconnect
System Alarm Audible & Visual Ventilator Inoperative Why? • System Malfunction • AC Power Failure What Happens? • Ventilator Powers Down • Valves Open to Atmosphere • allows spontaneous breathing
System Alarm Audible & Visual Manual Reset Check Ventilator • Abnormal Operating Condition What Happens? • Ventilator Continues to Operate • Unit Requires Service • Visual Indicator Remains Until Condition Corrected
System Alarm Visual & Audible Manual Reset Check Ventilator Why? • Internal Battery Voltage is Low What Happens? • Internal Battery Cannot Sustain Audible Alarm • AC Power Will Trickle Charge Error Code 205
System Alarm Audible & Visual Self-canceling Pressure Regulation Why? • Proximal and Set Pressure Vary • +/- 5 cm H2O What Happens? • Ventilator Sends Available Flow to Achieve Set Pressure P Regulation
System Audible & Visual Self-canceling Proximal Line Disconnect Why? • Proximal Pressure < 1 cmH2O What Happens? • Ventilator Continues to Deliver Set Pressure ProxLine Disc
System Alarm Audible & Visual Manual Reset Oxygen Flow Why? • Insufficient Oxygen Flow What Happens? • FIO2 Cannot be Maintained Ventilator Continues to Deliver Set Pressure O2 Flow
System Alarm Audible & Visual Self-Canceling Exhalation Port Why? • Baseline Flow Decreases Below Intentional Leak Rate • 5L/min or 50% What Happens? • Ventilator Continues to Deliver Set Pressure Exh Port
Learn Function • Learns Base Flow • Upon system start-up • After mode changes • Activated manually • With circuit condition changes • Modify Alarms screen
System Alarm Audible & Visual Self-Canceling Disconnect Alarm Why? • Patient Disconnect • High flow rates for 4 seconds What Happens? Disconnect • Ventilator decreases flow to idle
Flow Limit Control What Is It ? • Recognizes Patient Disconnection • Decreases total flow to idle • Flow Returns to Normal • Spontaneous patient trigger
Benefits of System Alarms • Monitor Operating Specifications • Warn of Abnormal Operating Conditions • Visual Messages Facilitate Troubleshooting
Adjustable Alarms • Monitor Specific Patient Parameters • Clinician Adjustable • Multiple Tone
High Pressure Low Pressure Low Pressure Delay Apnea Low Rate High Rate Low Minute Ventilation Adjustable Alarms
Adjustable Alarm Audible & Visual Self-canceling High Pressure Why? • Proximal Pressure Exceeds Hi P Alarm Limit • What Happens? Inspiration is Terminated • Safety Feature Hi P
Adjustable Alarm Audible & Visual Self-canceling Low Pressure& Low Pressure Delay Why? • Proximal Pressure Below Lo P • Limit for Set Time Delay What Happens? • Ventilator Continues to Function Lo P
Setting Pressure Alarms • Hi P and Lo P • Bracket IPAP • Lo P Delay • According to patient condition
Adjustable Alarm Audible & Visual Self-canceling Apnea Why? • Absence of Spontaneous Trigger for Set Time Interval What Happens? • Timed Breaths are Delivered at Set Rate Apnea
Apnea (con’t) • Audible resets only when condition is corrected • Two spontaneous triggers • Safety feature • Apnea Can be Disabled
Adjustable Alarm Audible & Visual Self-canceling Low Rate Why? • Total Respiratory Rate is Below Lo Rate Limit Setting Lo Rate Alarm Limits • Set Below Total Respiratory Rate • And Above Set Rate
Adjustable Alarm Audible & Visual Self-canceling High Rate Why? • Total Respiratory Rate is Above Hi Rate Limit Setting Hi Rate Alarm Limits • Set Above Total Respiratory Rate
Adjustable Alarm Audible & Visual Self-canceling Low Minute Ventilation Why? • Minute Ventilation Falls Below Set Lo MinVent Limit Setting Lo MinVent alarm limits • Set ~ 20% < Total Minute Ventilation • Use MinVent estimation
Benefits of Adjustable Alarms • Monitor Patient Conditions • Warn of Critical Changes in the Patient • as determined by the clinician • Visual Messages Facilitate Troubleshooting