User's Manual

62 Operator’s Manual ZM-520PA/521PA/530PA/531PA

Use with a Pacemaker

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WARNING

The bioelectric impedance measurement sensor of a minute ventilation rate-adaptive

implantable pacemaker may be affected by transmitter which is connected to the

same patient. If this occurs, the pacemaker may pace at its maximum rate and the

transmitter may give incorrect data to the monitor. If this occurs, disconnect the

electrode leads from the patient or change the setting on the pacemaker by referring

to the pacemaker’s manual. For more details, contact your pacemaker representative

or Nihon Kohden representative.

WARNING

The transmitter detects the pacemaker pulse and rejects the pacemaker pulse from

the heart rate count. However, all of the pacemaker pulse might not be rejected. If the

pacemaker pulse is not rejected, the pacemaker pulse is detected as QRS and false

heart rate may be indicated. Keep pacemaker patients under close observation.

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WARNING

The pacemaker pulse can be overlooked or detected as QRS. You cannot conﬁrm the

pacemaker operation only from the detected pacemaker pulse.

NOTE

• If an electric blanket is used and incorrect heart rate is displayed on the monitor, turn off

the pacing spike detection on the monitor.

• Turn the pacing spike detection to ON on the receiving monitor when monitoring a

pacemaker patient. Pacing pulse is detected by the transmitter and transmitted to the

monitor. If the pacing spike detection is turned OFF, QRS and pacemaker spike might

not be distinguished and pacemaker failure might not be recognized.