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Monitor Interference:
Monitor interference can be an artifact of Electrosurgery. Steps to minimize interference
are as follows:
1. Insure that the ECG electrode is well attached to the patient through proper skin
preparation prior to electrode placement.
2. Insure the electrosurgical cables (active and return) do not cross the cables of
the affected equipment.
3. Plug the affected equipment into a separate power outlet.
4. Use the lowest possible power setting to achieve the desired effect.
5. Interference is usually greatest in the SPRAY COAG mode; it can be reduced by
using a lower voltage mode such as STANDARD COAG.
6. Check all connections to the generator, patient return electrode, and accessories.
7. Some manufacturers of ECG electrodes offer RF (radio frequency) choke filters
for use in the monitor leads. These filters reduce interference while the
generator is activated. RF filters minimize the potential for an electrosurgical
burn at the site of the monitor electrode.
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