A nurse is observing the electronic fetal heart rate monitor tracing for a client who is at 40 weeks of gestation and is in labor. The nurse should suspect a problem with the umbilical cord when she observes which of the following patterns?

Choice A reason:

Uteroplacental insufficiency is a condition where the placenta cannot deliver enough oxygen and nutrients to the fetus. This can cause fetal hypoxia and distress, which can be detected by late decelerations on the fetal heart rate monitor. Late decelerations are defined as a decrease in the fetal heart rate that begins after the peak of the contraction and returns to baseline after the contraction ends. This indicates that the fetus is not tolerating the reduced blood flow during the contractions and needs immediate intervention. • Choice B reason:

Umbilical cord compression is a condition where the umbilical cord is squeezed or twisted, reducing the blood flow and oxygen to the fetus. This can cause variable decelerations on the fetal heart rate monitor. Variable decelerations are defined as a decrease in the fetal heart rate that varies in timing, shape, and duration, and may or may not be associated with contractions. This indicates that the fetus is experiencing intermittent or sustained cord compression and may need repositioning or other interventions. • Choice C reason:

Maternal bradycardia is a condition where the mother's heart rate is slower than normal, usually less than 60 beats per minute. This can cause reduced blood flow and oxygen to the placenta and the fetus, but it does not cause late decelerations on the fetal heart rate monitor. Maternal bradycardia can be caused by various factors, such as medications, hypothermia, hypothyroidism, or vagal stimulation. It may need treatment depending on the cause and severity. • Choice D reason:

Fetal head compression is a condition where the fetal head is pressed against the cervix or the pelvic floor during labor, stimulating the vagus nerve and slowing down the fetal heart rate. This can cause early decelerations on the fetal heart rate monitor. Early decelerations are defined as a decrease in the fetal heart rate that begins with the onset of the contraction and returns to baseline with the end of the contraction. This indicates that the fetus is descending in the birth canal and is usually a normal and benign finding.

Choice A reason:

Measuring urinary output. This is not the priority nursing care associated with an oxytocin infusion, because urinary output is not directly affected by oxytocin. Urinary output may be affected by other factors, such as fluid intake, dehydration, or kidney function, but these are not related to oxytocin administration. • Choice B reason:

Evaluating cervical dilation. This is also not the priority nursing care associated with an oxytocin infusion, because cervical dilation is a result of uterine contractions, not oxytocin itself. Oxytocin is used to stimulate or augment uterine contractions, but it does not cause cervical dilation directly. Cervical dilation is important to monitor during labor, but it is not the main focus of oxytocin infusion. • Choice C reason:

Increasing infusion rate every 30 minutes. This is not the priority nursing care associated with an oxytocin infusion, because increasing the infusion rate every 30 minutes is not a standard protocol for oxytocin administration. The infusion rate should be adjusted according to the patient's response and the provider's orders, but not arbitrarily or routinely. Increasing the infusion rate too quickly or too often can cause hyperstimulation of the uterus, which can be dangerous for both the mother and the fetus.

• Choice D reason:

Monitoring uterine response. This is the correct answer and the priority nursing care associated with an oxytocin infusion, because oxytocin can cause excessive or prolonged uterine contractions, which can lead to fetal distress, uterine rupture, or placental abruption. Therefore, the nurse must monitor the frequency, duration, and intensity of uterine contractions, as well as the fetal heart rate and blood pressure, to ensure that oxytocin is having the desired effect and not causing any adverse outcomes.