In a biophysical profile, what does a normal score of 2 for reactive fetal heart rate (FHR) indicate?

A normal score of 2 for reactive fetal heart rate (FHR) in a biophysical profile indicates a reactive non-stress test (NST). This reflects that the fetus is likely in good health, demonstrating appropriate reactivity in its heart rate in response to movements. Specifically, a reactive NST is defined by the presence of two or more accelerations in the fetal heart rate within a 20-minute period, typically indicating well-oxygenated and active fetal status.

In the context of fetal monitoring, a reactive NST suggests that the sympathetic nervous system is functioning well and that there are no immediate concerns regarding fetal distress. This is a reassuring sign and is a key piece of information obtained within the biophysical profile, which aims to assess fetal wellbeing.

The other options are not accurate representations of what a score of 2 signifies for reactive FHR. For instance, a non-reactive NST would indicate a score that suggests possible fetal distress rather than normal health status. Similarly, classifications such as high-risk classification and normal amniotic fluid levels pertain to different assessments within the biophysical profile that do not directly convey the implications of a reactive fetal heart rate score.