6 ECG, Arrhythmia, and ST Monitoring

Changing the Size of the ECG Wave

Setting the Paced Status (Pace Pulse Rejection)

♦In the Setup ECG menu, select Paced to toggle between Yes and No.

You can also change the paced status in the Patient Demographics window.

When Paced is set to Yes:

–Pace Pulse Rejection is switched on. This means that pacemaker pulses are not counted as extra QRS complexes.

–pace pulse marks are shown on the ECG wave as a small dash

–the paced symbol is displayed on the main screen.

When Paced is set to No, pacer spikes are not shown in the ECG wave. Be aware that switching pace pulse rejection off for paced patients may result in pace pulses being counted as regular QRS complexes, which could prevent an asystole alarm from being detected.

Paced

Non-Paced

Avoiding Pace Pulse Repolarization Tails

Some unipolar pacemakers display pace pulses with repolarization tails. These tails may be counted as QRSs in the event of cardiac arrest or other arrhythmias.

If you note a visible repolarization tail, choose a lead that decreases the size of the repolarization tail.

Repolarization tail (note width)

Changing the Size of the ECG Wave

If any of the displayed ECG waves is too small or clipped, you can change the size of one or all of the ECG waves on the screen.

Changing the adjustment factor only changes the visual appearance of the ECG wave on the screen. It does not affect the ECG signal analyzed by the monitor.

Comparing the wave size to the 1 mV calibration bar on the ECG wave segment can help you to get an idea of the true ECG signal strength. If you choose a fixed adjustment factor, the 1 mV calibration bar will be the same size for all the displayed ECG waves. If you choose AutoSize, the calibration bar may be a different size for each wave.

To Change the Size of an Individual ECG Wave

1Select the wave segment you want to change. This calls up the lead menu for this segment.

2In the lead menu, select Size Up to increase wave size or Size Down to decrease the size. Selecting AutoSize lets the monitor choose the optimal adjustment factor for all displayed ECG waves.

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Philips MP60/70/80/90, MP20/30, MP40/50 Changing the Size of the ECG Wave, Setting the Paced Status Pace Pulse Rejection
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MP60/70/80/90, MP40/50, MP20/30 specifications

Philips MP20/30, MP40/50, and MP60/70/80/90 are advanced patient monitoring systems designed to enhance clinical workflows and patient care in diverse healthcare settings. These devices combine cutting-edge technologies and user-friendly interfaces, making them essential tools for hospitals and healthcare providers.

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