The nurse is caring for an infant following the surgical repair of an atrial septal defect.Which nursing interventions are appropriate for this infant? (Select all that apply.)

Choice A rationaleAssessing the baseline fetal heart rate (FHR) over a 10-minute period ensures accurate measurement by capturing rate fluctuations due to fetal activity or maternal factors. This duration is a standardized method to establish a representative baseline. Variability is excluded during this time, focusing on a stable resting rate.Choice B rationaleBaseline FHR can be obtained using ultrasound or auscultation, both being reliable non-invasive methods for assessing fetal well-being. These tools accurately detect cardiac activity and provide real-time data, allowing consistent monitoring during labor.Choice C rationaleBaseline FHR cannot be obtained during contractions due to transient accelerations or decelerations caused by uterine compression. These changes do not represent the resting heart rate. Accurate baseline assessments require a period without uterine activity to avoid skewed results.Choice D rationaleA normal FHR of 110-160 bpm indicates adequate oxygenation and neural regulation. This range reflects the fetal cardiovascular system's ability to adapt to in utero conditions. Values outside this range might suggest hypoxia, infection, or other abnormalities.