GE Corometrics 250cx Series, Operator'S Manual

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5-10 250cx Series Maternal/Fetal Monitor Revision C
2036946-001
Fetal Heart Rate Monitoring: Single Fetal Heart Rate Monitoring
Summary
The alarm algorithms are intended to assist the perinatal staff in assessing the status
of a patient at bedside by recognizing vital signs data that falls outside the user-
defined normal range. The monitor does not replace observation and evaluation of
the mother and fetus at regular intervals by a qualified care provider, who will make
diagnoses and decide on treatments or interventions. A provider should determine
the status of the patient by visual assessment of the fetal monitor tracing at the
bedside and evaluation of fetal and maternal vital signs and progress in labor. The
absence of an alarm does not indicate fetal or maternal well-being.
Frequent assessment of the fetal monitor tracing is necessary to ensure recognition
of unusual, undefined, or suspicious patterns that may or may not generate a
threshold alarm.
Single Fetal Heart Rate Monitoring
The Corometrics 250cx Series monitor offers three options to monitor a single fetal
heart rate (FHR):
‹
US (external)
‹ US2 (external)
‹
FECG (internal)
Please refer to the “FHR Display and Trend Summary” Table for FHR display and
trend summary.
Dual Fetal Heart Rate Monitoring
The Corometrics 250cx Series monitor is capable of monitoring two fetal heart rates.
The discussion in this section is limited to methods of monitoring dual fetal heart
rates; however, it is important to note that MECG monitoring can continue during
the monitoring of twins—even when one twin is monitored using FECG. Please
refer to the “FHR Display and Trend Summary” Table for FHR display and trend
summary.
There are three available options to monitor dual fetal heart rate (FHR).
„ US/US2 (dual external)
„
FECG/US (internal/external)
„ FECG/US2 (internal/external)
The 250cx Series monitor offers two advanced features to aid in monitoring twins:
„
heartbeat coincidence
„ fetal heart rate offset