To clarify the fetal condition when baseline variability is absent, the nurse should first
Correct Answer: C
Rationale: When baseline variability is absent in fetal monitoring, it may indicate fetal hypoxia or acidemia. The appropriate action to further evaluate the fetal condition would be to notify the physician so that a fetal scalp blood sample can be obtained. This blood sample can provide important information about the oxygenation status of the fetus, helping to guide the management and interventions needed to support the baby's well-being. Monitoring fetal oxygen saturation using fetal pulse oximetry (choice A) or performing other interventions such as applying pressure to the fetal scalp (choice D) or increasing IV fluids for the mother (choice E) would not provide as direct or specific information about the fetal condition as obtaining a blood sample would.