User's Manual

EEG
24-23
Patient Preparation
Patient Preparation
Electrodes must be properly placed on the patient to obtain the optimum signal.
Use small ECG silver/silver chloride electrodes, EEG cup electrodes (silver or
gold), or their equivalent. Electrodes are available from Spacelabs Medical.
Attach lead wires to the electrodes before applying them to the patient. If you
apply lead wires after applying the electrodes, you may displace some of the
conductive gel, resulting in signal degradation. Connect all electrodes needed for
EEG monitoring. You will need six electrodes (minimum) for four channel
operation, and five electrodes (minimum) for two channel monitoring. Missing
electrodes will result in loss of EEG waveforms.
Prepare the patient for electrode placement as follows:
• If possible, choose a site that avoids hair interference, and is as high on the
scalp as possible.
• Clean each site with a medically approved abrasive cleaner (such as
OmniPrep
™
or NuPrep
™
) using a cotton tip applicator in a circular motion to
mildly abrade the skin. (The abrasive cleaner should not be used on patients
with a history of skin allergies to cosmetics or lotions. As a substitute, use a
skin degreaser such as alcohol.)
• Use alcohol wipes to further clean each site and remove residual OmniPrep.
Then, using dry gauze, rub site briskly, avoiding excessive abrasion of the
skin surface.
• Ensure that gel is moist in each electrode.
• Attach lead wires to electrodes before applying to patient.
CAUTION:
• Only use patient cables specified by Spacelabs Medical.
Other cables may degrade performance and may damage
the UCW or PCMS monitor during defibrillation. Do not use
stainless steel electrodes.
WARNING:
• To ensure against any possibility of electric shock, do not
touch lead electrodes, or the monitor during defibrillation.
The conductive parts of electrodes or any other patient
connection should not contact other conductive parts,
including the neutral electrode and earth (ground).
• Keep the monitor and its power cord and cables away from
the electrosurgery unit and its associated cables and power
cord.
• If electrodes are used adjacent to the electrosurgical site,
considerable high frequency current may flow through
them, causing patient burns, especially if a defect is
present in the return pad of the electrosurgical unit. For this
reason, electrodes should be placed as far away from the
surgery site as possible.
To setup EEG or EMG
monitoring:
1 Attach lead wires to EEG or
EMG electrodes.
2 Apply electrodes
3 Attach electrode lead wires to
patient cable.
4 Insert module into module slot.
5 Attach EEG patient cable to
module.