A nurse is caring for a client who is receiving oxytocin to augment labor. The nurse notes recurrent variable decelerations of the FHR. Which of the following actions should the nurse take first?

Choice A rationale:

The priority nursing action when the fetal heart rate shows a deceleration after the contraction has started, with the lowest point occurring after the peak of the contraction, is to change the client's position. This deceleration pattern is called "late decelerations,” and it is typically associated with uteroplacental insufficiency, which can be caused by maternal hypotension or impaired blood flow to the placenta. Changing the client's position, such as moving the client to their side or repositioning them, can alleviate pressure on the vena cava and improve blood flow to the placenta, thus potentially resolving or minimizing the late decelerations.

Choice B rationale:

Inserting a scalp electrode (Choice B) is not the priority action in this situation. While a scalp electrode may be used to monitor the fetal heart rate more accurately and continuously, it is not the initial intervention for addressing late decelerations.

Choice C rationale:

Preparing for amnioinfusion (Choice C) may be considered if there are variable decelerations (caused by cord compression) present, but it is not the priority intervention for late decelerations.

Choice D rationale:

Documenting benign decelerations (Choice D) is not appropriate in this scenario since late decelerations are not considered benign and require immediate action.

Choice A rationale:

When late decelerations are noted in the fetal heart rate (FHR) tracing, it indicates that the fetal oxygen supply may be compromised. The nurse should first change the client's position, such as moving her to the left lateral position or a hands-and-knees position, to improve uteroplacental blood flow and relieve pressure on the vena cava.

Choice B rationale:

Palpating the uterus to assess for tachysystole is not the priority action when late decelerations are observed. Tachysystole refers to excessively frequent uterine contractions and may contribute to fetal distress, but the immediate concern is addressing the decelerations.

Choice C rationale:

Increasing the client's IV infusion rate may not address the underlying cause of late decelerations. While maintaining hydration is important, it's not the first action to take in this situation.

Choice D rationale:

Administering oxygen at 10 L/min via a non-rebreather mask may be beneficial for the client and fetus, but it is not the first action to take. The nurse should address the position change first to improve oxygenation through better blood flow before considering supplemental oxygen.