14 Monitoring Uterine Activity Externally
130
External Toco Monitoring
Prepare for Toco monitoring using the list below. The standard procedures in use in your facility
determine the sequence of actions.
• Fasten the abdominal transducer belt around the patient.
• Connect the Toco transducer to a free socket on the monitor. The Toco baseline is automatically
reset. The Toco display shows 20. "Toco", indicating external uterine measurement, is printed on
the trace at intervals.
• Place the transducer on the patient's fundus to ensure the optimum recording of uterine activity.
• Reset the Toco baseline as necessary (see “Resetting the Toco Baseline” on page 130), but not
during a contraction.
The following example trace shows two contractions.
Resetting the Toco Baseline
Press the Toco Baseline SmartKey. This resets the Toco baseline to 20 on the display and trace.
Automatic Baseline Adjustment
If the Toco value is negative for more that five seconds, the Toco baseline is automatically reset to 0
units.
Toco Sensitivity
If the Toco sensitivity is too high, and the Toco trace exceeds the paper scale, you can reduce the Toco
sensitivity to 50%. The default setting is 100%.
To change the Toco sensitivity:
1 Enter the Setup Toco menu.
2 Select Gain to toggle between 100% and 50%.
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