Innovative Technologies

What is Audible Cue?

Improve manual ventilation and CPR with ETCO2 Audible CueAudible Cue logo

ETCO2 Audible Cue helps the caregiver manage ETCO2 during manual ventilation and CPR by delivering 5 different, easily recognizable sounds to indicate 5 ranges from high to low ETCO2. Audible Cue provides the caregiver with instant feedback about ETCO2 level changes without needing to look at the monitor.
5 different sounds of Audible Cue

The following figure shows the results of a study comparing manual ventilation with no capnometric monitoring and with capnometric monitoring with and without Audible Cue.1
The results of a Audible Cue study

1 Miyasaka K et al. Audible capnometric cues facilitate targeted control of end-tidal carbon dioxide during manual ventilation. Annual meeting of American Society of Anesthesiologists. 2013;A1185.

Audible cue delivers 5 different, easily recognizable sounds to indicate the ETCO2 range.
The audible cue makes sounds in 5 different patterns. TRY! Listen to the sound: Click

Primarily designed for ETCO2 range* [mmHg]

Audible Cue sound type <click to enlarge>

Audible Cue sound design

<click to enlarge>

Example of situation                             
Manual ventilation and ROSC confirmation 45≤
High sound High sound design ・Hypoventilation is caused by insufficient manual ventilation during transport
・ROSC is achieved*

35 - 44
Normal sound Normal sound design Ventilation is sufficient

20 - 34
(Low 1)
Low 1 sound Low 1 sound design Hyperventilation is caused by over aggressive manual ventilation during transport

CPR (chest compression) 10 - 19
(Low 2)
Low 2 sound Low 2 sound design High quality chest compressions are achieved

(Low 3)
Low 3 sound Low 3 sound design Quality of effectiveness of chest compression may need improvement

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