Innovative Technologies

What is Audible Cue?

Improve manual ventilation and CPR with ETCO2 Audible Cueaudiblecue_logo_l_1.png

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.


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

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 ETCO2 range.

The audible cue sounds by 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  
Manualventilation and ROSC confirmation 45≤
High.png High_A.png ・Hypoventilation is caused by insufficient manualventilation during transport
・ROSC is achived*
35 - 44
Normal.png Normal_A.png Ventilation is sufficient
20 - 34
(Low 1)
Low1.png Low1_A.png Hyperventilation is caused by over aggressive manual ventilation during transport
CPR (chest compression) 10 - 19
(Low 2)
Low2.png Low2_A.png High quality chest compressions are achieved
(Low 3)
Low3.png Low3_A.png Quality of effectiveness of chest compression may need improvement

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