Patient Preparation For Ecg Monitoring; Monitoring; Electrosurgery - Dräger Infinity M540 Instructions For Use Manual

ECG, arrhythmia, and ST segment

Patient preparation for ECG monitoring

The following tips provide optimal ECG monitoring
results but must never replace hospital-approved
practices or manufacturer's recommendations.
Follow hospital procedures for proper skin
preparation. Dräger recommends Ag/AgCl
disposable electrodes. Never use disposable
electrodes after their expiration date and make sure
that there is enough gel and that the gel has not
dried out.
P and T waves with amplitudes exceeding 0.2 mV
can be interpreted as QRS complexes. To allow
detection of low heart rate conditions under these
circumstances, place the lead with the highest R
wave in channel ECG1. If P and T waves continue
to be misinterpreted, reposition the electrodes or
use an SpO sensor to monitor the pulse rate.
2
To maintain a clear signal, change electrodes every
24 to 48 hours or more often when the following
occurs:
– ECG signal degradation
– Excessive patient perspiration
– Skin irritation
Consider the following when selecting electrode
sites:
– Surgery – keep electrodes as far from the
surgical site as possible, while maintaining a
clinically useful lead configuration. Place the
cable and lead wires as far from the ESU as
possible and perpendicular to the ESU cables.
– Burn Patients – use sterile electrodes. Clean
the equipment thoroughly and follow hospital
infection control procedures.
– Incorrect placement of electrodes affects the
signal quality.
204 Instructions for use – Infinity Acute Care System – Monitoring Applications VG6.n

Electrosurgery

Integrated ESU suppression improves the
performance of the monitor during electrosurgery,
reduces noise on ECG waveforms, and protects
the patient from burns.
To minimize interference from the
electrosurgical unit
 Select the heart rate parameter field.
or
1 Select Sensor parameters... from the main
menu bar.
2 Select the Settings 2 tab (if not already
selected).
3 Select ESU next to the Filter selection.
NOTE
12-lead monitoring is not available when the ESU
filter is enabled. Likewise, the ESU filter selection
is not available when you are using 12-lead

monitoring.

If the Filter selection is set to ESU at the Cockpit
and you switch to a 12-lead ECG at the M540,
the Filter setting automatically changes to
Monitor at the Cockpit.
NOTE
ESU mode provides better HR performance in the
presence of electrosurgical interference, but with
possible ECG R-wave amplitude reduction on
narrow complexes.