3. Select
Waveform Fields
and select the fields (up to three) for
ECG measurement.
Selecting a lead
With a 3-lead set you can monitor one lead at a time. With a
5-lead set you can monitor three different leads at a time.
Viewing a cascaded ECG
With both types of lead sets, you can display one lead in
cascaded form, in up to three waveform fields. This means the
signal continues on selected fields.
•
To select monitored leads, press the
ECG
key and select
ECG1 Lead
,
ECG2 Lead
, or
ECG3 Lead
.
Improving waveform readability
1. Ensure that several waveform fields have ECG measurement.
1. Press the
ECG
key.
2. Press the
ECG
key, select a lead, and choose
Casc.
2. Select
ECG Size
and increase the scale height.
WARNING
:
Ensure proper contact of the return electrode of the
electrosurgery unit to your patient to avoid possible burns at ECG
electrode or other probe sites.
NOTE: The module input circuits are protected against the
effects of electrosurgery and defibrillation. However, the ECG
waveform on the monitor screen may be disturbed during
electrosurgery.
Monitoring the ST segment
Changing the HR source
The monitor analyses changes in the ST segment when you are
monitoring ECG. The changes are analyzed from the active
leads.
If the ECG signal is affected by too much noise to produce a
reliable heart rate calculation, choose the rate to be calculated
from pressure (Art) or plethysmographic pulse waveform (Pleth).
The selection is shown above the numerical display of the heart
rate.
1. To enter the ST Analysis View, press the
ECG
key and select
ST Analysis
.
2. For optimal results, select
STfilt
to be the filter and one of the
following leads:
1. Press the
ECG
key.
•
with 5-lead set: II, V5
,
and aVF.
2. Select
ECG Setup
.
•
with 3-lead set: II.
3. Select
HR Source
.
You can also connect a 3-lead set to a 5-lead trunk cable. The
combination functions as a 3-lead set.
AUTO
selects the first available of ECG, Art, ABP, and Pleth.
Viewing several leads
NOTE: ST segment changes may be affected by myocardial
ischemia or other factors, such as drugs, metabolic disturbances,
or conduction disturbances.
With a 5-lead set you can monitor up to three different leads at a
time, each one in its own waveform field.
For details about detection performance and test results of
ST segment measurement testing, see "User’s Reference
Manual: ECG."
1. Press the ComWheel and select
Monitor Setup
.
2. Select
Screen Setup
.
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