Physio-Control LIFEPAK 20e - Manual (Page 33)

2
B
asic Orien
tation
Basic Orientation
LIFEPAK 20e Defibrillator/Monitor Operating Instructions 2-11
©2006-2013 Physio-Control, Inc.
Figure 2-14
Area 7
The following paragraphs provide additional information about Area 7 .
Monitoring Area—Heart Rate
The LIFEPAK 20e defibrillator/monitor displays a heart rate between 20 and 300 beats per
minute (bpm). A heart rate symbol flashes with each beat. If the heart rate is below 20 bpm or
pacing is enabled, the screen displays dashes (– – –). Heart rates above 300 bpm do not yield
valid systole tones and the displayed heart rate will not be valid. The heart rate indicator is a tool
to be used in addition to patient assessment. Care should be taken to assess the patient at all
times and to not rely solely on the displayed heart rate.
QRS detection is essential for using the digital heart rate display, systole tone, synchronized
cardioversion, and noninvasive demand pacing. The QRS detector in the LIFEPAK 20e
defibrillator/monitor selectively detects QRS complexes. It discriminates against most noise,
muscle artifact, T-waves, and other spurious signals.
The QRS detect algorithm automatically adjusts itself to the amplitude of the QRS complexes.
Changing the gain of the ECG has no effect on QRS detection. For optimum QRS detection
performance, use the lead with the greatest QRS amplitude.
WARNING!
Failure to detect a change in ECG rhythm.
Heart rate meters may continue to count the internal pacing pulses during occurrences of
cardiac arrest or some arrhythmias. Do not rely entirely on heart rate meter alarms. Keep
pacemaker patients under close surveillance.
WAVEFORM
CHANNEL
AREA
Displays up to
two waveform
channels.
Refer to
page 2-12 .
MONITORING
PARAMETER
AREA
Displays patient
values and alarm
limits.
Time
Display
CPR
Metronome
Icon
Selected
Energy
Battery
Status
Indicator
Alarm
Icon
STATUS MESSAGE AREA