Revision B 120 Series Maternal/Fetal Monitor 15-3
2015590-001
Troubleshooting: Ultrasound Troubleshooting
Ultrasound Troubleshooting
Table 15-2. Ultrasound Troubleshooting
Problem Probable Cause Possible Solution
Ultrasound not functioning properly.
îš„ Transducer not properly connected to
monitor.
îš„ Transducer placement.
îš„ Too little gel applied to transducer.
îš„ Defective transducer.
îš„ Active fetus or mother. Fetal arrhythmia
or hiccups. Extreme maternal obesity.
îš„ No signal.
îš„ Service required.
îš„ Ensure that transducer is securely
attached to monitor.
îš„ Wait before moving transducer; FHR
often returns. Reposition transducer.
îš„ Apply more gel.
îš„ Replace transducer.
îš„ Use alternate technique.
îš„ Auscultate FHR.
îš„ Call Biomedical Engineering
Department.
Static noise on ultrasound.
îš„ Active fetus.
îš„ Environmental noise.
îš„ Maternal movement.
îš„ Defective transducer.
îš„ Reposition transducer.
îš„ Keep sheets and gown off transducer.
Do not hold transducer with hand.
îš„ Use alternate monitoring mode.
îš„ Replace transducer.
Rate on FHR area of display and FHR
trend on strip chart paper do not correlate.
Monitor is set for 30 BPM/cm vertical scale
and 20 BPM/cm vertical scale strip chart
recorder paper is being used (or vice
versa).
Call Biomedical Engineering Department.
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