What is an advantage of external electronic fetal monitoring?
a. The ultrasound transducer can accurately measure short-term variability and beat-to-beat changes in the fetal heart rate.
b. The tocotransducer can measure and record the frequency, regularity, intensity, and approximate duration of uterine contractions (UCs).
c. The tocotransducer is especially valuable for measuring uterine activity during the first stage of labor.
d. Once correctly applied by the nurse, the transducer need not be repositioned even when the woman changes positions.
ANS: C
The tocotransducer is especially valuable for measuring uterine activity during the first stage of labor, particularly when the membranes are intact. Short-term changes cannot be measured with this technology. The tocotransducer cannot measure and record the intensity of UCs. The transducer must be repositioned when the woman or fetus changes position.
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