Cpr Rate Metronome; Cpr Compression Voice Prompts (Adult Patients Only) - ZOLL M2 Operator's Manual

CPR Rate
The CPR rate value displays the current chest compression rate (compressions per minute)
determined by the ZOLL M2 unit. When no chest compressions have been detected during the
past few seconds, the rate display shows "---".
CPR Compression Detection Indicator
This indicator provides a compression signal that flashes with each detected compression to
inform the user that his/her compressions are being detected.
Note:

CPR Rate Metronome

The ZOLL M2 includes a CPR metronome feature that can be used to encourage rescuers to
perform chest compressions at the recommended rates. The metronome beeps at the AHA/ERC
recommended rate to provide a compression rhythm for rescuers to follow.
In AED mode, the metronome beeps are issued at the configured rate when CPR electrodes are
in use and the ZOLL M2 unit is in a CPR period. The metronome can also be configured to
begin beeping after the first few chest compressions are detected and continue to beep until
chest compressions have stopped for more than a few seconds.
In Manual Defib mode, the metronome is silent when no chest compressions are being detected
by CPR-equipped hands-free therapy electrodes; the ZOLL M2 unit begins issuing metronome
beeps when compressions are detected and stops issuing beeps a few seconds after chest
compressions have stopped.

CPR Compression Voice Prompts (Adult Patients Only)

The ZOLL M2 unit issues voice prompts related to the depth of chest compressions as feedback
to rescuers performing CPR. Two voice prompts are available for this purpose:
• Push Harder
• Good Compressions
When chest compressions are detected but their depth is consistently less than the target depth
of 5 centimeters (2 inches), the device periodically issues the "Push Harder" voice prompt. If
the rescuer responds by increasing compression depth to more than the target depth on a
consistent basis, the unit issues a "Good Compressions" prompt.
CPR compression voice prompts are only available when the patient type is set to adult.
In AED mode, CPR voice prompts are always on during the time that clinical protocol instructs
the user to perform CPR. In Manual Defib mode, the only voice prompts are "Push Harder" and
"Good Compressions".
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This indicator may not flash in response to the first few compressions as it attempts to
distinguish chest compressions from other movements of the sensor.
ZOLL M2 Operator's Guide
CPR User Interface
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