Ventilator Alarms and Response

Overview

Quick overview of V200 ventilator alarms, key screen elements, alarm priorities, common causes, and immediate nursing/respiratory actions.

Active mode indicator lit green; shows current ventilation mode.
Key documented settings: rate, tidal volume, FiO2 percentage, PEEP.
Example shown: Assist Control–Volume Control, rate 12, tidal volume set, FiO2 40%, PEEP 5.

High-priority alarms highlight in red; continuous flashing until resolved.
Low-priority/caution alarms highlight in yellow; flashing indicates ongoing issue.
Alarm silence button mutes sound but does not resolve the alarm condition.
Alarm reset clears latched indicators after issue is corrected.

High pressure alarm (red): most common due to coughing or secretions; also tubing kink or airway obstruction.
Low minute ventilation (yellow): patient not receiving intended delivery; often system leak or disconnection, cuff/tracheal leak.
Low inspiratory pressure (yellow): indicates inadequate delivery; commonly associated with leaks or disconnections.
Apnea alarm: occurs commonly in CPAP mode when patient stops breathing or disconnects.

First assess the patient: oxygen saturation, heart rate, respiratory rate, need for suctioning.
For high pressure: assess for coughing/secretions; suction patient; check for kinks or obstructions.
For low alarms: inspect for leaks, disconnections, cuff/trach leaks; reconnect and secure system.
If alarms persist and patient in distress: disconnect from ventilator and provide manual ventilation (Ambu) with 100% oxygen.
Before planned disconnections or turns: press alarm silence to prevent nuisance alarms, then proceed.

In CPAP, patient breathes spontaneously with set PEEP and FiO2.
If apnea detected or disconnection occurs, apnea alarm triggers.
Ventilator automatically switches to volume control and delivers breaths during apnea.
After apnea event, verify patient breathing and check for disconnections.

Alarm silence: temporarily mutes audible alarm; visual remains until problem fixed.
Alarm reset: used after resolving issue; clears visual alarm indicators.

Alarm/Feature	Indicator	Common Causes	Immediate Actions	Notes
High pressure	Red, flashing	Coughing, secretions, tubing kink, airway obstruction	Silence if needed, assess, suction, remove kinks/obstruction	High priority; persists until resolved
Low minute ventilation	Yellow, flashing	System leak, disconnection, cuff/trach leak	Check connections, fix leaks, reassess delivery	Caution alarm
Low inspiratory pressure	Yellow, flashing	Leak, disconnection	Inspect circuit, reconnect, secure cuff/trach	Indicates inadequate delivery
Apnea (CPAP mode)	Alarm triggers	Patient stops breathing, disconnection	Check breathing, reconnect if needed	Auto switch to volume control breaths
Alarm silence button	Mutes sound	—	Use before turning/disconnecting patient	Visual alarm persists
Alarm reset button	Clears visuals	—	Press after resolving issue	Removes latched indicators

Assist Control–Volume Control: Mode where ventilator delivers set tidal volume at set rate; assists patient breaths.
FiO2: Fraction of inspired oxygen; percentage of oxygen delivered.
PEEP: Positive end-expiratory pressure; maintains airway pressure at end exhalation.
CPAP: Continuous positive airway pressure; spontaneous breathing with set PEEP and FiO2.
Apnea: Absence of breathing for a defined period, triggering backup ventilation.

Document rate, tidal volume, FiO2, and PEEP as displayed on monitor.
For any alarm: silence if needed, assess patient first, then the ventilator and circuit.
Suction promptly for suspected secretions; correct kinks or obstructions.
Fix leaks/disconnections; verify cuff/trach integrity.
If distress persists: Ambu with 100% oxygen until help arrives.
After resolution: press alarm reset to clear indicators and continue monitoring.