Question

In a normal/reactive NST, FHR increases _________bpm over 15s after fetal movement.

a) 5-10
b) 10-15
c) 15-20
d) 20-25

Answer 1

In a normal/reactive NST, the FHR is expected to increase by 15-20 bpm over 15 seconds following fetal movement, making the correct answer (c) 15-20 bpm.

Step-by-step explanation:

In a normal/reactive Non-Stress Test (NST), the Fetal Heart Rate (FHR) increases by 15-20 bpm over 15 seconds after fetal movement. The correct option in this case is (c) 15-20 bpm. The NST assesses fetal well-being by measuring the FHR in response to fetal movement. A normal or reactive NST is indicative of a healthy fetus, with good oxygenation and autonomic function. When the fetus moves, it is expected that the fetal heart rate will accelerate by at least 15-20 bpm from the baseline, and this acceleration should last for at least 15 seconds.