Chapter 4
| Monitoring
©2007-2015 Physio-Control, Inc.
LIFEPAK 15 Monitor/Defibrillator Operating Instructions
57
OBSERVATION
POSSIBLE CAUSE
CORRECTIVE ACTION
Monitor displays dashes
(---) instead of heart rate
Heart rate is < 20 bpm
•
Use ECG printout to calculate
heart rate.
Heart rate is > 300 bpm
•
Use ECG printout to calculate
heart rate.
Pacing function is active
•
No corrective action needed.
Poor ECG signal quality
Poor electrode-skin contact
•
Reposition cable or lead wires to
prevent electrodes from pulling
away from patient.
•
Secure trunk cable clasp to
patient’s clothing.
•
Prepare skin and apply new
electrodes.
Outdated, corroded, or dried-
out electrodes
•
Check Use By date on electrode
packages.
•
Use only unexpired silver/silver
chloride electrodes. Leave
electrodes in sealed pouch until
time of use.
Loose connection.
Damaged cable or
connector/lead wire
•
Check or reconnect cable
connections.
•
Inspect ECG and therapy cables.
Replace if damaged.
•
Check cable with simulator and
replace if malfunction observed.
Noise because of radio
frequency interference (RFI)
•
Check for equipment causing RFI
(such as a radio transmitter) and
relocate or turn off equipment
power.
Baseline wander
(low frequency/high
amplitude artifact)
Inadequate skin preparation
•
Prepare skin and apply new
electrodes.
Poor electrode-skin contact
•
Check electrodes for proper
adhesion.
Diagnostic frequency response
•
Print ECG in monitor frequency
response.
Fine baseline artifact (high
frequency/low amplitude)
Inadequate skin preparation
•
Prepare skin and apply new
electrodes.
Isometric muscle tension in
arms/legs
•
Confirm that limbs are resting on
a supportive surface.
•
Check electrodes for proper
adhesion.
Содержание LIFEPAK 15
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