Physio-Control LIFEPAK 15 - Manual (Page 139)

THERAPY
5
©2007-2013 Physio-Control, Inc. LIFEPAK 15 Monitor/Defibrillator Operating Instructions
5-25
performance. Patients often exhibit a muscular response (such as jumping or twitching) during an
energy transfer. The absence of such a response is not a reliable indicator of actual energy delivery
or device performance.
Using the CPR Metronome
When CPR is required during cardiac arrest, the CPR metronome provides audible prompts that
guide the user to deliver CPR with proper timing in accordance with the 2005 American Heart
Association and European Resuscitation Council CPR guidelines.
CPR Metronome Warnings
Note: The CPR metronome is a tool to be used as a timing aid during CPR. Assess the patient at
all times and provide CPR only when indicated. Provide CPR according to your training and
protocols.
How the CPR Metronome Works
The metronome provides audible “tocks” at a rate of 100/minute to guide the rescuer in
performing chest compressions. The metronome also provides audible ventilation prompts
(either a tone or verbal “ventilate”) to cue the rescuer when to provide ventilations. The
metronome prompts the rescuer to perform CPR at the selected compression to ventilation (C:V)
ratio.
Age-Airway Considerations
The default C:V ratio for the metronome (in both AED and Manual modes) is Adult - No Airway
(30:2) because most patients in cardiac arrest are adults who have an initially unsecured
airway. In Manual mode, the user can choose the most appropriate C:V ratio based on the
patient’s age and current airway status. The Age-Airway selection determines the C:V ratio of the
metronome sounds. The default C:V ratios are shown in Table 5-2.
WARNING
CPR DELIVERED WHEN NOT NEEDED
The metronome sounds do not indicate information regarding the patient’s condition.
Because patient status can change in a short time, the patient should be assessed at
all times. Do not perform CPR on a patient who is responsive or is breathing normally.