Monitoring Ambulant Fhr Using Ultrasound - Philips 50 T Series Instructions For Use Manual

Monitoring Ambulant FHR Using Ultrasound

Chapter 4 - Monitoring
It is not recommended to use the Fetal Movement Profile during
ambulant monitoring. Movement of the ultrasound transducer whilst the
patient is ambulating may be recorded as fetal movement.
Warning
Do not use brown transducers to monitor patients under water.
Ultrasound and Toco transducers that are colored blue are watertight
and comply with IEC 529 (IP68).
You can immerse the BLUE Ultrasound and Toco tranducers in
water ONLY when connected to the telemetry transmitter. NEVER
connect blue transducers directly to the fetal monitor when they are
immersed in water, or likely to come in contact with water.
NEVER immerse the telemetry transmitter in water or other liquids
such as cleaning solutions.
Warning
During ambulant FHR monitoring, the chance of losing the signal or
detecting the maternal heart rate is higher than during stationary
monitoring. We therefore recommend that you check the mother's
pulse periodically during monitoring and compare this to the FHR
signal. Beware of mistaking a "doubled" maternal heart rate for
FHR.
Performing ultrasound imaging or Doppler flow measurements in
conjunction with ultrasound fetal monitoring may cause false
readings of FHR (recording of the trace may deteriorate).
Also, the frequency of the patient's walk may be detected. This is
more likely when the patient is overweight or has a breech
presentation.
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