The practical nurse (PN) is obtaining fetal heart rates on four antepartum clients in their third trimester of pregnancy. Which fetal heart rate should be reported to the registered nurse (RN) immediately?

A. 152: A fetal heart rate (FHR) of 152 beats per minute is within the normal range for a third-trimester fetus (110–160 bpm) and does not require immediate intervention. B. 118: A FHR of 118 bpm is slightly on the lower end of the normal range but still considered acceptable for a healthy fetus, though monitoring may continue. C. 180: A FHR of 180 bpm exceeds the normal range and may indicate fetal tachycardia, which can result from maternal fever, infection, hypoxia, or fetal distress. This requires immediate reporting to the RN for assessment and potential intervention. D. 136: A FHR of 136 bpm falls within the normal range and does not necessitate urgent reporting, though routine monitoring should continue.