Final answer:
The Non-stress test (NST) measures the response of fetal heart rate to fetal movement. It checks for acceleration of the heart rate when the fetus is active, which is a sign of healthy development.
Step-by-step explanation:
The measure that assesses the response of fetal heart rate (FHR) to fetal movement is the Non-stress test (NST). The Non-stress test is a common prenatal test used to monitor a fetus's heart rate and evaluate its well-being. It involves observing the heart rate as the fetus moves, looking for increases in the heart rate or accelerations that are normally expected when the fetus is active. The other options listed, such as the Biophysical profile (BPP), Contraction stress test (CST), and Fetal movement count (FMC), are also prenatal tests, but they have different purposes. A Biophysical profile (BPP) includes the NST but also assesses other fetal characteristics, such as muscle tone and amniotic fluid volume. The Contraction stress test (CST) evaluates the fetal heart rate response to contractions, and the Fetal movement count (FMC) is a simple check that the pregnant person can do to count the number of times the fetus moves over a certain period.