A nurse is caring for a client who is in active labor. The nurse notes late decelerations in the fetal heart rate on the monitor tracing. Which of the following actions should the nurse take first?

Choice A rationale Initiating internal fetal heart rate monitoring is an invasive procedure that is not the priority for a non-reassuring fetal heart rate pattern like late decelerations, which often indicate uteroplacental insufficiency. The first step involves non-invasive intrauterine resuscitation measures to immediately improve fetal oxygenation before considering invasive monitoring, unless the external tracing is inadequate. Choice B rationale Late decelerations are an indication of uteroplacental insufficiency (decreased blood flow/oxygen to the fetus during the contraction). Assisting the client to a left lateral position is the priority nursing action because it relieves pressure from the gravid uterus on the vena cava, which in turn maximizes venous return to the heart and increases blood flow and oxygen delivery to the placenta and fetus. Choice C rationale While uterine tachysystole (excessive frequency of contractions, greater than five in 10 minutes over 30 minutes) can cause late decelerations, palpating for it is not the absolute first action. The immediate priority is to improve fetal oxygenation by repositioning the mother. Palpation for tachysystole, however, is a quick assessment that should follow the repositioning intervention. Choice D rationale Increasing the infusion rate of the maintenance IV fluid (an IV fluid bolus) is a critical step in intrauterine resuscitation for late decelerations. It increases maternal blood volume, which can improve placental perfusion. However, repositioning the client is generally the most immediate, least invasive, and first step to correct or improve the blood flow to the placenta and fetus.