Which of the following indicates moderate fetal heart rate variability?

Moderate fetal heart rate variability is characterized by fluctuations in the fetal heart rate that range between 6 to 25 beats per minute (BPM). This range indicates a healthy level of autonomic nervous system function in the fetus, reflecting the ability to respond to physiological changes with appropriate heart rate adjustments.

Variability is an important indicator of fetal well-being during labor and can help identify potential risks; moderate variability suggests that the fetus is likely receiving adequate oxygenation and is less likely to be under stress. This makes it a reassuring finding during fetal monitoring.

In contrast, options that fall below or exceed the 6-25 BPM range indicate different states of fetal heart rate variability. A range of 0-5 BPM is considered minimal variability, which might suggest fetal distress or central nervous system issues, while higher ranges of variability (26-50 BPM or 51-100 BPM) can indicate excessive variability, which may also warrant further investigation depending on the clinical context. Thus, understanding the range that defines moderate variability is crucial for assessing fetal health and making clinical decisions during labor and delivery.