Fukuda Denshi LX-7120, Operation Manual

Page: 34 / 74

4. ECG Monitoring
14
CAUTION
 There are some cases when pacemaker pulse cannot be detected
depending on the pacemaker type, pulse voltage, pulse width, electrode
lead type (unipolar, bipolar), electrode placement, or lead method which
causes the pacemaker pulse amplitude to decrease and disables
pacemaker pulse detection.

If signals similar to a pacemaker pulse are present, such as electric
blanket noise or excessive AC frequency noise, these may be
erroneously detected and displayed as a pacemaker pulse. In this case,
check the condition of the electrodes and ECG lead cable to resolve the
cause or turn off the pacemaker detection setting on the receiving
monitor.
 Time constant of this device is shorter than Fukuda Denshi monitors
(direct ECG connection). Therefore, there is a difference in the ST
measurement value between them. Pay attention to the difference
when monitoring a patient from a transmitter or a monitor.
 When an electrode is attached on the same location for a long time,
some patients may develop skin irritation. Check the patient’s skin
condition periodically and change the electrode position as required.
 The indication for continuous use of an electrode is about one day.

Replace the electrode if the skin contact gets loosen due to perspiring,
etc.
 Make sure to use new disposable electrodes. Otherwise, the waveform
quality may become poor and it may fail to perform correct monitoring.
 When “Check Electrode” message is displayed on the screen of the
receiving monitor or the LCD of this device, check the condition of the
electrodes and ECG lead cable to resolve the cause.
 When removing electrodes from the patient, remove them carefully and
slowly. Do not apply excessive force to remove them. Otherwise, it may
damage the skin.
 It may not perform a correct measurement due to the attached position
of the electrodes. Attach the electrodes on the patient referring to page
10 and 11 and make sure that the correct waveform is measured on the
LCD.