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10 Monitoring ECG, Arrhythmia, ST and QT
10.1 ECG Introduction
The electrocardiogram (ECG) measures the electrical activity of the heart and displays it on the monitor as
waveforms and numerics. ECG monitoring provides 3-, 5-, 6-, and 12-lead ECG monitoring, ST-segment analysis,
arrhythmia analysis, and QT/QTc measurements.
10.2 ECG Safety Information
• This equipment is not intended for direct cardiac application.
• Make sure the conductive parts of electrodes and associated connectors, including the neutral
electrode, do not contact any other conductive parts including earth.
• Use defibrillation-proof ECG cables during defibrillation.
• Do not touch the patient or metal devices connected to the patient during defibrillation.
• To reduce the hazard of burns during high-frequency surgical procedure, ensure that the monitor’s
cables and transducers never come into contact with the electrosurgery unit (ESU).
• To reduce the hazard of burns during use of high-frequency surgical unit (ESU), the ECG electrodes
should not be located between the surgical site and the ESU return electrode.
• Only use parts and accessories specified in this manual. Follow the instructions for use and adhere to
all warnings and cautions.
• Periodically inspect the electrode application site to ensure skin integrity. If the skin quality
changes, replace the electrodes or change the application site.
• Interference from ungrounded instrument near the patient and electrosurgery interference can
induce noise and artifact into the waveforms.
10.3 ECG Display
The following figures show the ECG waveform and numeric areas. Your display may be configured to look
slightly different.
(1) (2) (3) (4) (5) (6)
(7)
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