Ecg; Heart Rate; Selecting The Waveform Display - ZOLL M2 Operator's Manual

Chapter 3 Monitoring Overview

ECG

An ECG waveform appears at the top of the display area. You can specify that the unit displays
the waveform of any available ECG source (such as PADS, ECG Leads I, II, III, aVR, aVL,
aVF, or V). You can configure the ZOLL M2 unit to display up to four ECG waveform traces.
In addition to being able to specify the ECG source for each waveform trace, you can adjust the
display scale of those traces to make them easier to view.
Printing ECG Waveforms
You can print waveforms that are displayed on the screen by pressing the Print button
The ZOLL M2 unit prints the displayed waveforms as configured in the Number of Traces
option. The Print Number of Traces option can be set to 1, 2, 3, or 4. Patient vital sign numerics
are printed above the waveforms. Real-time chart recordings are annotated every 10 seconds
with the current values of physiological parameters.
Note:
ECG waveforms are printed on a grid with major divisions every 5mm and minor divisions
every 1 mm. The ECG waveform is always printed if ECG is monitored.
The default chart speed for printing physiological waveforms is 25 mm/sec; 50 mm/sec print
speed is also available.

Heart Rate

A Heart Rate meter gives the patient's heart rate in Beats Per Minute (
derived from the monitor's top ECG trace.

Selecting the Waveform Display

In Monitor mode, you can display up to four waveform traces on the screen. The first waveform
trace always uses an ECG lead as its source (such as PADS or Leads I, II, or III). The power up
lead in each mode (Monitor, Pacer, Defib) is configurable; Lead II is the default lead for both
Monitor and Pacer modes. PADS is the default lead for Defib mode.
3-2
If there is a dashed line on the display instead of an ECG waveform, the ECG data is
not being acquired. Check the pads, paddles or ECG cable connection, and that the
pads, paddles, or monitoring electrodes are properly applied.
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