Answer: It requires the following:
Step-by-step explanation:
Reactive non-stress testing (NST) in a term fetus is a reassuring sign of fetal well-being. It typically requires the presence of two or more accelerations in the fetal heart rate within a 20-minute period, where each acceleration demonstrates an increase in the heart rate of at least 15 beats per minute (bpm) above the baseline and lasts for at least 15 seconds. This pattern indicates that the fetus is responding well to its environment and that there is an adequate oxygen supply, suggesting a healthy and viable pregnancy. If the NST is non-reactive, further evaluation and monitoring may be necessary to ensure the well-being of the fetus.