Which term describes visually apparent abrupt increases in Fetal Heart Rate (FHR) above the baseline?

Accelerations refer to visually apparent abrupt increases in Fetal Heart Rate (FHR) above the baseline. These are defined as an increase in FHR of at least 15 beats per minute that lasts for at least 15 seconds but less than 2 minutes. Accelerations indicate a healthy response of the fetal heart to stimuli, such as fetal movement, and can be a reassuring sign of fetal well-being.

The other terms do not describe this phenomenon accurately. Decelerations refer to decreases in FHR, which signal potential distress and often indicate that the fetus may be experiencing some adverse conditions. Variations relate to the normal fluctuations in FHR that occur over time, which are not abrupt changes. Bradycardia specifically refers to a slower than normal heart rate (typically defined as less than 110 beats per minute) and can indicate fetal distress or other complications.

By understanding that accelerations represent a positive and healthy response of the fetus, healthcare providers can better assess fetal well-being during monitoring.