8-5
Lead Placement for Surgical Patients
The surgical site should be taken into consideration when placing electrodes on a surgical
patient. e.g. for open-chest surgery, the chest electrodes can be placed on the lateral chest or
back. To reduce artifacts and interference from electrosurgical units, you can place the limb
electrodes close to the shoulders and lower abdomen and the chest electrodes on the left side
of the mid-chest. Do not place the electrodes on the upper arm. Otherwise, the ECG
waveform will be very small.
WARNING
z When using electrosurgical units (ESU), patient leads should be placed in a
position that is equal distance from the Electrosurgery electrotome and the
grounding plate to avoid burns to the patient. Never entangle the ESU cable and
the ECG cable together.
z When using electrosurgical units (ESU), never place ECG electrodes near to the
grounding plate of the ESU, as this can cause a lot of interference on the ECG
signal.
8.3.4 Checking Paced Status
It is important to set the paced status correctly when you start monitoring ECG. The paced
symbol
is displayed in the ECG waveform area when the [Paced] status is set to [Ye s ].
The pace pulse markers “|” are shown on the ECG wave when the patient has a paced signal.
If [Paced] is set to [No] or the patient’s paced status is not selected, the symbol
will be
shown in the ECG waveform area.
To change the paced status, you can select either:
the patient information area, or
[Main Menu][Patient Setup][Patient Demographics], or,
the ECG parameter window or waveform area[Others >>],
and then, select [Paced] from the popup menu and toggle between [Yes ] and [No].
If you do not set the paced status, the patient monitor issues a prompt tone when pace pulse is
detected. At the same time, the paced symbol flashes and the message [Please confirm the
pace of patient] appears in the ECG waveform area. Then, please check and set the paced
status of the patient.
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