F Series Fetal & Maternal Monitor User Manual Fetal Monitoring
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7.3.6 Directions for Using Fetal Spiral Electrode
1 With the patient in the dorsal lithotomy position, perform a vaginal examination and
clearly identify the fetal presenting part.
2 Remove the spiral electrode from the package; leave the electrode wires locked in the
handle notch.
3 Gently bend the guide tube to the desired angle.
4 Hold the drive handle, ensure the spiral electrode is retracted about one inch (2.5 cm)
from the distal end of the guide tube.
5 Place the guide tube firmly against the identified presenting part.
6 Maintain pressure against the fetal presenting part with guide and drive tubes. Rotate the
drive tube by rotating the drive handle clockwise until gentle resistance is encountered.
Resistance to further rotation and recoil of the drive handle indicates that the spiral
electrode is well attached to the fetus.
7 Release the electrode wires from the handle notch and straighten them. Slide the drive
and guide tubes off the electrode wires.
8 Insert the safety cap into DECG cable.
Figure 7-4 The well-attached fetal spiral electrode
7.3.7 DECG Monitoring Procedure
1 Perform a vaginal examination to identify the fetal presenting part.
2 Prepare the patient’s skin using the procedures described in section 7.3.3 Preparing
Patient's Skin Prior to Placing Electrodes.
3 Attach the fetal spiral electrode to the fetal presenting part using the procedures
described in section 7.3.6 Directions for Using Fetal Spiral Electrode.
4 Fix an attachment pad electrode to DECG cable.
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