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
The correct answer is D. Cover the client with warm blankets.
Choice A rationale:
Shaking chills are not always associated with fever, especially during the immediate postpartum period. While determining the client's temperature can rule out infection, this action does not provide immediate relief or comfort. The chills are often physiological due to hormonal and vascular changes.
Choice B rationale:
Seizure precautions are unnecessary unless additional symptoms, such as loss of consciousness or convulsions, are observed. Shaking chills are typically not indicative of a neurological event but rather a normal postpartum response.
Choice C rationale:
Notifying the charge nurse is unnecessary unless the shaking is accompanied by other abnormal findings, such as fever or prolonged chills. The immediate priority is to ensure client comfort.
Choice D rationale:
Providing warm blankets addresses the primary issue of discomfort caused by postpartum chills. This is a standard intervention to stabilize the client's body temperature and promote comfort. The action is immediate, non-invasive, and effective.
Correct Answer is C
Explanation
Choice A rationale:
Preterm labor. Performing a pelvic examination in a client with placenta previa can potentially trigger uterine contractions, leading to preterm labor. Manipulating the cervix during the examination may stimulate the release of hormones that could initiate labor, putting both the mother and the baby at risk.
Choice B rationale:
Infection. While infection is a valid concern in any medical procedure, it is not the primary rationale for avoiding a pelvic examination in a client with placenta previa. The primary concern is the risk of severe bleeding caused by the disruption of the placenta's attachment to the uterine wall.
Choice C rationale:
Profound bleeding. The primary rationale to avoid a pelvic examination in a client with placenta previa is the risk of profound bleeding. Placenta previa occurs when the placenta covers part or all of the cervix, and it is at risk of being damaged or detached during a pelvic exam. This can lead to life-threatening hemorrhage for both the mother and the baby.
Choice D rationale:
Rupture of the fetal membranes. While this complication is possible during a pelvic examination, it is not the primary rationale to avoid the procedure in a client with placenta previa. The main concern, as mentioned before, is the risk of severe bleeding that can occur due to placental disruption.
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