What is a normal range for fetal heart rate variability?

Fetal heart rate variability is a crucial parameter in assessing fetal well-being. The normal range recognized for fetal heart rate variability is typically between 6 to 25 beats per minute. This range indicates a healthy autonomic nervous system response and provides evidence that the fetus is adequately oxygenated.

Variability reflects the interaction between the parasympathetic and sympathetic nervous systems, and a normal range signifies that the fetus is well-hydrated and has an appropriate response to stimuli. When variability falls outside of this normal range, it can be a cause for concern as it may indicate fetal stress or distress, which necessitates further evaluation and monitoring.

The other ranges provided do not align with established clinical guidelines, as they reflect either minimal variability, which is interpreted as non-reassuring, or excessive variability, which may also indicate complications. Understanding these ranges helps healthcare providers make informed decisions regarding ongoing fetal assessments and interventions.