Spacelabs Healthcare elance 5, Service Manual

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Troubleshooting
5-5
Artifact (Waveform Interference)
•
Dirty or corroded
connections.
•
Improper electrode
application
•
Dry electrode gel
•
Intermittently short circuit in
lead wires or cable
•
Electrical interference from
other medical devices in the
room.
•
Replace dirty or corroded
wires
•
Check the electrodes and re-
apply if necessary. Clean
the patient’s skin well to
remove skin oil and dead
skin cells. Skin oils and
dead skin cells inhibit ECG
electrical signal conduction.
•
Check the electrode gel. If
it is dry, do not use and
replace with new electrodes.
•
Replace intermittent or
broken lead wires or cable
•
Make sure all medical
devices associate with the
same patient are attached to a
common ground. Use a
ground wire adaptor if
necessary.
Weak ECG Signal
•
Improper electrode
application
•
Defective ECG lead wires
and/or cable.
•
Re-apply electrodes.
•
Replace any faulty lead wires
and cable.
Fuzzy Baseline (Electrical
Interference)
•
Electrical interference from
other medical devices
associated with the patient.
•
Make sure all medical
devices being used, such as
IV pump, ventilator,
electrical bed, are attached to
a common ground. Use a
ground wire adaptor if
necessary.
•
Check all three-pronged
plugs to ensure no prong is
loose.
•
Notify biomed department if
poor grounding has been
observed at wall socket or
power strip being used.