What is the normal range for fetal heart rate (FHR)?

The normal range for fetal heart rate (FHR) is between 110 and 160 beats per minute (BPM). This range is established based on extensive research and observational studies of fetal physiology. A fetal heart rate within this range is considered reassuring and indicates good fetal well-being.

Fetuses are capable of autonomously regulating their heart rates, and the 110 to 160 BPM range reflects a balance that supports sufficient oxygenation and nutrient delivery during development. Factors such as fetal activity, maternal position, and even gestational age can influence the FHR temporarily, but a consistent rate within this specified range is regarded as a sign of healthy fetal function.

FHR below 110 BPM is considered bradycardia, which could indicate potential fetal distress or underlying issues requiring assessment. Conversely, a heart rate significantly above 160 BPM is termed tachycardia, which may also signal complications or require further observation and intervention. Understanding the normal FHR range is crucial for healthcare professionals monitoring fetal health throughout pregnancy and labor.