Appendix C
| Shock Advisory System
©2007-2015 Physio-Control, Inc.
LIFEPAK 15 Monitor/Defibrillator Operating Instructions
255
Table 46
LIFEPAK 15 Monitor/Defibrillator Performance by Rhythm Category
RHYTHM
CLASS
ECG
TEST
1
SAMPLE
SIZE
PERFORMANCE
GOAL
OBSERVED PERFORMANCE
Shockable:
Coarse VF
168
>90% sensitivity
LIFEPAK 15 monitor/defibrillator meets the
IEC 60601-2-4 requirements and
AHA
2
recommendations.
Shockable: VT
65
>75% sensitivity
LIFEPAK 15 monitor/defibrillator meets the
IEC 60601-2-4 requirements and AHA
recommendations.
Nonshockable:
NSR
144
>99% specificity
for NSR (AHA)
LIFEPAK 15 monitor/defibrillator meets the
AHA recommendations.
Nonshockable:
asystole
43
>95% specificity
LIFEPAK 15 monitor/defibrillator meets the
IEC 60601-2-4 requirements and AHA
recommendations.
Nonshockable:
all other rhythms
531
>95% specificity
LIFEPAK 15 monitor/defibrillator meets the
IEC 60601-2-4 requirements and AHA
recommendations.
Intermediate:
fine VF
29
Report only
>75% sensitivity
1
Each sample is run 10 times asynchronously.
2
Automatic External Defibrillators for Public Access Defibrillation: Recommendations for Specifying and Reporting
Arrhythmia Analysis Algorithm Performance, Incorporating New Waveforms, and Enhancing Safety. American Heart
Association (AHA) Task Force on Automatic External Defibrillation, Subcommittee on AED Safety and Efficacy.
Circulation
, 1997: Vol. 95: 1677-1682.
VF = ventricular fibrillation
VT = ventricular tachycardia
NSR = normal sinus rhythm
Operator Control of Shock Therapy
The Shock Advisory System causes the AED to charge automatically when it detects the
presence of a shockable rhythm. When a shock is advised, the operator presses the
SHOCK
button to deliver the energy to the patient.
Continuous Patient Surveillance System
The Continuous Patient Surveillance System (CPSS) automatically monitors the patient's ECG
rhythm for a potentially shockable rhythm while the electrodes are attached and the AED is
turned on. CPSS is not active during ECG analysis or when the AED is in a CPR cycle.
Motion Detection
The Shock Advisory System detects patient motion independent of ECG analysis. A motion
detector is designed into the LIFEPAK 15 monitor/defibrillator.
MOTION DETECTION
can be set
up to be
ON
or
OFF
. For more information, see the
LIFEPAK 15 Monitor/Defibrillator Setup
Options
provided with your device.
A number of activities can create motion, including CPR, rescuer movement, patient movement,
and some internal pacemakers. If variations in the transthoracic impedance signal exceed a
maximum limit, the Shock Advisory System determines that patient motion of some kind is
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