Printing the ECG Waveform
You can print the ECG wave onto the trace paper. If you are monitoring both DECG and MECG,
both waves will be printed. The start of the wave recording is annotated above the wave with
Maternal ECG, with
MECG and/or DECG are measured without any real-time recording, the
printed in the trace header.
The fetal/maternal monitor is not a diagnostic ECG device. In particular, the display of fetal/
maternal ECG is intended only for evaluating signal quality for fetal/maternal heart rate as derived
from the ECG waveform.
When in doubt, it can be used to identify sources of compromised signal quality, such as noise or
muscle artifacts. It can subsequently be used to verify the result of measures taken to resolve them
(e.g., checking ECG cable connections or adapting the fetal
The safety and effectiveness of the displayed fetal/maternal ECG waveform (i.e., P, QRS and T
segments) for evaluation of fetal/maternal cardiac status during labor have not been evaluated.
The ECG waveform is printed along the bottom of the heart rate grid, and the three different
possibilities look like this:
DECG waveform on its own
for Direct fetal ECG, and with
below the wave. When only
recorder speed is