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• The ventilation frequency (Freq.):
Visual signal
conditions
Cause Ventilation frequency value Solution
Low frequency
(continuous mode)
Adult No insufflation during 9s
Ventilate at an appropriate
frequency, as recommended in
the international guidelines
Child: 1-4y (ERC) and
AHA
No insufflation during 6s
Child: 5-11y (ERC) No insufflation during 6.5s
Low frequency
(30:2 mode)
Adult
No inspiration for 24
seconds
Low frequency
(15:2 mode)
Child: 1-4y (ERC) and
AHA
No insufflation during 14s
Child: 5-11y (ERC) No insufflation during 14.5s
High frequency
Adult > 15 bpm
Child: 1-4y (ERC) and
AHA
> 30 bpm
Child: 5-11y (ERC) > 25 bpm
Visual signal
conditions
Cause
Solution
Patient height Tidal volume value
Excessive volume
Small > 430 mL
Insufflate a volume of air within the
appropriate range as defined in the
international guidelines
Medium > 565 mL
Tall > 710 mL
1-2 years > 100 mL
2-3 years > 120 mL
3-4 years > 150 mL
5-6 years > 190 mL
7-9 years > 240 mL
10-11 years > 300 mL
Note
• In continuous ventilation mode the visual signal condition is calculated based on the trend value of
the volumes. If the trend value and the current value of the tidal volume are as described in the table
above, the tidal volume visual signal is triggered.
• In 30:2 and 15:2 CPR mode the visual signal condition is calculated based on the mean value of the
tidal volumes during two consecutive ventilation cycles.
Note
• In continuous ventilation mode the frequency is calculated based on the trend value of the ventilation
frequency. If the trend value and the current value of the frequency are as described in the table above,
the ventilation frequency visual signal is triggered.
• In 30:2 and 15:2 CPR mode the visual signal condition is calculated based on the actual value of the pause
time.
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