A nurse is assisting with the monitoring of a client who is in the first stage of labor, with an external fetal monitor in place and IV fluids infusing. Which of the following factors will cause variable decelerations in the fetal heart rate?
Fetal head compression.
Umbilical cord compression.
Maternal opioid administration.
Uteroplacental insufficiency.
The Correct Answer is B
Choice A rationale:
Fetal head compression is unlikely to cause variable decelerations in the fetal heart rate. During contractions and labor, the fetal head may experience pressure, but this usually leads to early decelerations, not variable decelerations. Early decelerations are considered benign and are caused by the head's pressure stimulating the vagus nerve, resulting in a temporary decrease in heart rate.
Choice B rationale:
Umbilical cord compression is a known cause of variable decelerations in the fetal heart rate. When the umbilical cord is compressed, it can temporarily disrupt blood flow and oxygen supply to the fetus, leading to decelerations. Variable decelerations often appear as abrupt, sharp drops in the fetal heart rate and are typically characterized by their unpredictable
nature.
Choice C rationale:
Maternal opioid administration is not a direct cause of variable decelerations in the fetal heart rate. While opioids can cross the placenta and may affect the fetus, they are more likely to cause other issues, such as respiratory depression in the newborn, rather than variable decelerations.
Choice D rationale:
Uteroplacental insufficiency is not the primary factor causing variable decelerations. Uteroplacental insufficiency refers to an inadequate blood flow and oxygen delivery to the placenta, which can lead to late decelerations in the fetal heart rate, not variable decelerations.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
The nurse should not advise the client to take deep, cleansing breaths before and after each contraction because it can interfere with the natural urge to push and may not be effective in helping with the labor process. When a client feels the urge to push, it is essential to work with their body's natural instincts.
Choice B rationale:
Instructing the client to hold their breath and push while counting to ten is not recommended. This Valsalva manoeuvre can cause a sudden increase in intra-abdominal pressure, which may reduce blood flow to the heart and brain and may be harmful to both the client and the baby. It's crucial to promote safe pushing techniques during labor.
Choice C rationale:
The instruction to push continuously throughout the entire contraction is also not ideal. Pushing continuously can lead to exhaustion and decrease the effectiveness of each push. It's essential to guide the client on when and how to push effectively to prevent unnecessary fatigue.
Choice D rationale:
The correct instruction is to let the client know when to push according to their contractions. The urge to push is a natural reflex that signifies the baby's descent into the birth canal. The nurse should encourage the client to listen to their body and push when they feel the urge during the contractions. This approach optimizes the client's efforts and conserves their energy for delivery.
Correct Answer is D
Explanation
Choice A rationale:
Helping the client to the bathroom to empty her bladder is not the appropriate response in this situation. The client's sudden urge to push indicates that she is in the second stage of labour, which is the pushing phase. The cervix is already dilated at 7 cm, and the fetus is at 1+ station, indicating that delivery is imminent. Emptying the bladder at this point is not a priority and may delay necessary actions.
Choice B rationale:
Assisting the client into a comfortable position is also not the appropriate response. The client's urge to push suggests that she is in the active stage of labor, and her cervix is already 7 cm dilated. Encouraging a comfortable position might not be suitable since the focus should be on monitoring the progress of labor and preparing for delivery.
Choice C rationale:
Having the client pant during the next few contractions is not the correct response either. Panting is typically recommended during the transition phase of labor to prevent rapid pushing and potential damage to the perineum. However, in this scenario, the client is already fully dilated, and the fetus is at 1+ station, indicating that the second stage of labour has commenced. Panting is not necessary at this point.
Choice D rationale:
The appropriate nursing response is to assess the perineum for signs of crowning. The sudden urge to push indicates that the baby is descending through the birth canal and may be close to crowning, which is when the baby's head becomes visible at the vaginal opening. By assessing for crowning, the nurse can determine if delivery is imminent and notify the healthcare provider for further actions and preparation for the baby's birth.
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