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[0] What is an advantage of external electronic fetal monitoring? [1] The ultrasound transducer can accurately measure short-term variability and beat-to-beat changes in the fetal heart rate. [2] The tocotransducer can measure and record the frequency, regularity, intensity, and approximate duration of uterine contractions (UCs). [3] >>The tocotransducer is especially valuable for measuring uterine activity during the first stage of labor. [4] 
Once correctly applied by the nurse, the transducer need not be repositioned even when the woman changes positions.
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