ZOLL X Series, Operator'S Manual

Page: 29 / 344

Warnings
9650-001355-01 Rev. M X Series Operator’s Guide 1-17
ECG Monitoring
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Implanted pacemakers might cause the heart rate meter to count the pacemaker rate during
incidents of cardiac arrest or other arrhythmias. Dedicated pacemaker detection circuitry
may not detect all implanted pacemaker spikes. Check the patient's pulse; do not rely solely
on heart rate meters. Patient history and physical examination are important factors in
determining the presence of an implanted pacemaker. Pacemaker patients should be
carefully observed. See “Pacemaker Pulse Rejection:” on page A-15 of this manual for
disclosure of the pacemaker pulse rejection capability of this instrument.
•
Use only ECG electrodes that meet the AAMI standard for electrode performance
(AAMI EC-12). Use of electrodes not meeting this AAMI standard could cause the ECG
trace recovery after defibrillation to be significantly delayed.
•
Prior to attempting synchronized cardioversion, ensure the ECG signal quality is good and
that sync markers are displayed above each QRS complex.
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Do not place electrodes directly over an implanted pacemaker.
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The X Series unit detects ECG electrical signals only. It does not detect a pulse (effective
circulatory perfusion). Always verify pulse and heart rate by physical assessment of the
patient. Never assume that the display of a nonzero heart rate means that the patient has a
pulse.
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Excessive artifact can result due to improper skin preparation of the electrode sites. Follow
skin preparation instructions in Chapter 6: “Monitoring ECG.”
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Equipment such as electrocautery or diathermy equipment, RFID readers, electronic article
surveillance (EAS) systems, or metal detectors that emit strong radio frequency signals can
cause electrical interference and distort the ECG signal displayed by the monitor, thereby
preventing accurate rhythm analysis. Ensure adequate separation between such emitters, the
device, and the patient when performing rhythm analysis.
•
Shock Hazard: Use of accessories, other than those specified in the operating instructions,
may adversely affect patient leakage currents.
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Certain line-isolation monitors may cause interference on the ECG display and may inhibit
heart rate alarms.
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Monitoring ECG through the paddles may result in inaccurate heart rate display due to
artifact.