Comparison with contraction stress test (CST)
Comparison with contraction stress test (CST) ( 5 Questions)
A nurse is comparing the advantages and disadvantages of external and internal fetal heart rate (FHR) monitoring.
Which of the following statements is true about external FHR monitoring?
External monitoring is less accurate and consistent than internal monitoring, especially when there is movement or interference.
External monitoring can be done without ruptured membranes or cervical dilation, while internal monitoring requires both.
It can be used for both antepartum and intrapartum fetal assessment. External fetal heart rate monitoring uses a device to listen to or record the baby’s heartbeat through the mother’s abdomen. It does not require ruptured membranes or cervical dilation for application, unlike internal monitoring. It also does not provide a more accurate and continuous FHR tracing than internal monitoring, nor can it measure the intensity of uterine contractions.
External monitoring can only measure the frequency and duration of uterine contractions, not the intensity. Internal monitoring can measure the intensity of uterine contractions with a fluid-filled catheter.
It can be used for both antepartum and intrapartum fetal assessment. External fetal heart rate monitoring uses a device to listen to or record the baby’s heartbeat through the mother’s abdomen. It does not require ruptured membranes or cervical dilation for application, unlike internal monitoring. It also does not provide a more accurate and continuous FHR tracing than internal monitoring, nor can it measure the intensity of uterine contractions.
Choice A is wrong because external monitoring is less accurate and consistent than internal monitoring, especially when there is movement or interference.
Choice B is wrong because external monitoring can be done without ruptured membranes or cervical dilation, while internal monitoring requires both.
Choice D is wrong because external monitoring can only measure the frequency and duration of uterine contractions, not the intensity. Internal monitoring can measure the intensity of uterine contractions with a fluid-filled catheter.