How many body or limb movements must occur to receive a score of 2 for the movement parameter in a BPP?

In a biophysical profile (BPP), the movement parameter is assessed by counting the number of discrete body or limb movements the fetus makes within a specified time frame, typically 30 minutes. To score a '2' for this movement parameter, the fetus must demonstrate a minimum of three distinct movements. This assessment is designed to evaluate fetal well-being; adequate fetal movement is an indicator of a healthy neurological status. Fewer than three movements would not provide sufficient evidence of normal fetal activity, thereby resulting in a lower score for that parameter. This scoring system helps clinicians identify any potential issues with fetal health, making the threshold of three movements critical.