一位待產婦使用外在胎兒監視器，護理師觀察到胎心音出現變異性減速。護理師應優先採取何種行動？
A client in the labor and delivery unit has an external fetal monitor. The nurse observes variable decelerations on the tracing. What is the nurse's priority action?
- AChange the client's position✓ 正解改變個案姿勢
- BPrepare for an emergency cesarean section準備緊急剖腹產
- CAdminister oxygen via face mask透過面罩給予氧氣
- DIncrease the IV fluid rate增加靜脈輸液速率
變異性減速（Variable decelerations）在胎心音監測中代表臍帶受到壓迫。護理師的第一反應應是「消除病因」，即改變孕婦姿勢（如左側臥、膝胸臥位）以減輕臍帶受壓。若採取此行動後減速緩解，則可持續觀察。若無效，再依序執行給氧、停止催產素輸注或通知醫師。這是產科護理中典型的「採取行動前先改變姿勢」的優先順序。
Variable decelerations on fetal heart rate monitoring represent umbilical cord compression. The nurse's first response should be to eliminate the cause, that is, change the maternal position (such as left lateral or knee-chest position) to relieve cord compression. If decelerations resolve after this action, continued observation is appropriate. If ineffective, the nurse then sequentially administers oxygen, stops the oxytocin infusion, and notifies the provider. This is a classic example of the obstetric nursing priority of changing position before taking other actions.