CADENCE II Fetal Monitor User Manual
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Chapter 7 Monitoring
WARNING
:
1) The monitor is not intended for use in intensive care units (ICU), operating rooms or
for home use.
2) The monitor is not protected against defibrillation. Do not apply it during
electro-surgery or MRI; otherwise it might result in harming the patient or the
operator.
3) Always check if the alarm settings are appropriate for your patient before starting
monitoring.
7.1 Confirming Fetal Life
Fetal monitoring with ultrasound or DECG can not differentiate a fetal heart rate signal source
from a maternal heart rate source in all situations. These are some of the signal sources that might
be taken as FHR signal source by mistake:
- High maternal heart rate signal.
- Maternal aorta or other large vessels signals.
- Electrical impulse from the maternal heart transmitted through a recently deceased fetus.
- Movement of the deceased fetus during or following maternal movement.
So you need to confirm fetal life by other means before starting to use the fetal monitor, such as
using a fetoscope, stethoscope, Pinard stethoscope or obstetric ultrasonography.
7.2 Monitoring FHR with Ultrasound
The ultrasound monitoring is a method to obtain FHR through maternal abdominal wall. Place a
US transducer (US transducer) on maternal abdomen to transmit lower energy ultrasound wave to
fetal heart, and then receive the echo signal.
Ultrasound monitoring can be used for antepartum monitoring.
7.2.1 Parts Required
1) US transducer 2) Aquasonic coupling gel 3) Belt
7.2.2 Operation Procedure
1) Placing Transducer Belt
Place the transducer belts across the bed, ensuring that the belt will be around the abdomen