10 Monitoring FHR and FMP Using Ultrasound
109
Maternal-Switching (Maternal Insertion)
Baseline Rate 170 - Tachycardia
Baseline Variability Moderate
Accelerations Unable to determine
Decelerations Absent
Contractions Absent
Artifact Maternal insertion, noise
Comment The fetus has an elevated baseline rate of about
170 bpm with minimal to moderate variability.
The ability to assess fetal status is limited because
about half of the tracing displays the maternal
heart rate.
Remediation The application of a maternal transducer (ECG
or pulse oximeter) will likely resolve any possible
confusion with the tracing. Repositioning the
transducer may produce a more reliable tracing.
Consideration must also be given to applying a
fetal scalp electrode.
Noisy/Erratic Signal and Dropout
Baseline Rate 140
Baseline Variability Moderate
Accelerations Present
Decelerations Absent
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