19 Monitoring Maternal Heart / Pulse Rate
156
beat MECG heart rate trace or an ultrasound heart rate trace calculation, having switched to the
maternal rate with no significant delay. Note that Maternal Pulse from Toco has an averaging of 4
seconds and an overall delay of between 6 and 8 seconds.
MHR from MECG Electrodes
You can measure MHR using the equipment combinations shown in the following illustrations.
Illustration 1 shows the complete connection chain from the foam electrodes applied to the patient to
the fetal monitor using the patient module.
A
Pre-gelled Foam Electrodes (40493A/B/C/D/E)
B
MECG Adapter Cable (M1363A)
C
Patient Module (M2738A)
Illustration 2 shows the equivalent chain using the Toco
+
transducer.
A
Pre-gelled Foam Electrodes (40493A/B/C/D/E)
B
MECG Adapter Cable (M1363A)
C
Toco+ Transducer (M2735A)
To simultaneously measure DECG and MHR, you use a Toco
+
transducer for DECG, and a patient
module for MECG (see also “Monitoring FHR Using DECG” on page 137).
1
Cross-Channel Verification
(CCV) has detected a
coincidence situation
2
Fetal heart rate trace from
Ultrasound
3
Maternal pulse trace from SpO
2
Summary of Contents for Avalon FM20
Page 2: ......
Page 8: ...8 ...
Page 56: ...3 Basic Operation 56 ...
Page 72: ...5 Alarms 72 ...
Page 82: ...6 Patient Alarms and INOPs 82 ...
Page 86: ...7 Admitting and Discharging 86 ...
Page 90: ...8 Non Stress Test Timer 90 ...
Page 120: ...11 Monitoring Twin FHRs 120 ...
Page 126: ...12 Monitoring Triple FHRs 126 ...
Page 136: ...15 Monitoring Uterine Activity Internally 136 ...
Page 142: ...16 Monitoring FHR Using DECG 142 Testing DECG Mode Refer to the monitor s Service Guide ...
Page 154: ...18 Monitoring SpO2 154 ...
Page 164: ...20 Printing the ECG Waveform 164 ...
Page 166: ...21 Paper Save Mode for Maternal Measurements 166 ...
Page 170: ...22 Recovering Data 170 ...
Page 174: ...23 Care and Cleaning 174 ...
Page 188: ...25 Accessories and Supplies 188 ...
Page 216: ...26 Specifications and Standards Compliance 216 ...
Page 221: ...Part Number 453564290161 Printed in Germany 08 11 453564290161 ...