20 Printing the ECG Waveform
162
DECG and MECG waveforms
When the recorder is on, there are two choices for printing the ECG wave:
• Separate: This recording mode gives you a six-second ECG strip on the fetal trace paper in fast
printout mode. As this is a real-time recording, the real-time fetal trace recording is temporarily
interrupted while the ECG strip prints. A new trace header is printed out to mark where the real-
time fetal trace resumes.
The following trace shows the MECG waveform:
•
Overlap: This recording mode gives you a delayed six-second snapshot of the maternal and/or
direct fetal ECG for documentation on the fetal strip, but without interrupting the fetal trace. It
takes 5 minutes to print this six-second snapshot at a recorder speed of 3 cm/min. It is
documented as if it was recorded at 25 mm/s.
1
DECG
2 MECG
3 Paper speed
1 Paper speed
2 Date
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