Therapy
4-18 LIFEPAK 20 Defibrillator/Monitor Operating Instructions
The metronome provides “tocks” and ventilation prompts continuously until it is deactivated. To stop
the metronome, select
STOP METRONOME in the CPR Metronome menu. An event is recorded in the
CODE SUMMARY Event Log when CPR metronome is turned ON or OFF and when the Age-Airway
setting is changed. To adjust the volume of the metronome, press
OPTIONS, select ALARM VOLUME, and
change the
VOLUME.
Note: If all Age-Airway selections are set to the same C:V ratio (for example, Adult - No Airway,
Adult - Airway, Youth - No Airway, and Youth - Airway all set to 10:1), the CPR metronome always
provides “tocks” and ventilation prompts at the set ratio for both AED mode and Manual mode. In
this situation, the CPR Metronome menu does not appear when the
CPR METRONOME icon is
selected during use—selecting the
CPR METRONOME icon only activates and deactivates the
metronome at the fixed C:V ratio.
Synchronized Cardioversion Procedure
Note: The LIFEPAK 20 defibrillator/monitor can be configured to remain in synchronous mode or
to return to asynchronous mode after discharge. It is important that you know how your defibrillator
is configured. Refer to Manual Mode Setup Menu, page 8-4.
1 Press
ON.
2 Attach patient ECG cable and ECG electrodes as described previously on page 3-5.
3 Select lead II or the lead with greatest QRS complex amplitude (positive or negative).
Note: To monitor the ECG through therapy electrodes, place the electrodes in the anterior-
lateral position and select paddles lead.
4 Press
SYNC. Confirm the sync LED blinks with each detected QRS complex.
Note: Press
SYNC again to deactivate synchronous mode.
5 Observe the ECG rhythm. Confirm that a triangle sense marker appears near the middle of each
QRS complex. If the sense markers do not appear or are displayed in the wrong locations (for
example, on the T-wave), select another lead. (It is normal for the sense marker location to vary
slightly on each QRS complex.)
6 Prepare the patient’s skin for therapy electrode application as described in Step 3 of Defibrillation
Procedure, page 4-15.
7 Connect the therapy electrodes to the therapy cable, and confirm cable connection to the device.
8 Apply therapy electrodes to the patient in the anterior-lateral or anterior-posterior position. If using
standard paddles, apply conductive gel to the paddles and place paddles on the patient’s chest.
9 Press
ENERGY SELECT.
10 Press
CHARGE.
Note: If the
REMOVE TEST PLUG message appears, disconnect test plug and connect therapy
electrodes to QUIK-COMBO therapy cable and press
CHARGE.
11 Make certain all personnel, including operator, stand clear of the patient, bed, and any equipment
connected to the patient.
12 Confirm ECG rhythm. Confirm available energy.
WARNING!
Possible lethal arrhythmia.
Ventricular fibrillation may be induced with improper synchronization. DO NOT use the ECG from
another monitor (slaving) to synchronize the LIFEPAK 20 defibrillator/monitor discharge. Always
monitor the patient’s ECG directly through the ECG cable, therapy cable or use the remote
synchronization procedure. Confirm proper placement of the sense markers on the ECG.
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