Final answer:
Brief, temporary increases in FHR of at least 15 bpm more than the baseline HR and lasting at least 15 seconds are known as Accelerations.
Step-by-step explanation:
Brief, temporary increases in FHR of at least 15 bpm more than the baseline HR and lasting at least 15 seconds are known as Accelerations. Accelerations are a normal and positive sign in fetal monitoring, indicating a healthy baby. They can often occur in response to fetal movement or stimulation and are a reassuring sign of fetal well-being.