A nurse is caring for a client who is receiving epidural anesthesia. The client is hypotensive with decreased placental perfusion.
Which of the following actions should the nurse take?
Administer oxygen via nasal cannula at 2 L/min.
Administer lactated Ringer's 500 mL bolus.
Place the client in a knee-chest position.
Monitor the client's blood pressure every 30 min.
The Correct Answer is B
Choice A rationale
Administering oxygen via nasal cannula at 2 L/min might marginally increase fetal oxygenation, but it does not address the primary issue of hypotension causing decreased placental perfusion. The fundamental problem is reduced blood flow to the placenta, necessitating interventions that increase maternal circulating volume and blood pressure to improve perfusion.
Choice B rationale
Administering a lactated Ringer's 500 mL bolus directly addresses hypotension by expanding the maternal intravascular volume. This increased circulating volume raises blood pressure, thereby improving placental perfusion and oxygen delivery to the fetus. Lactated Ringer's is an isotonic solution, effective for rapid volume expansion.
Choice C rationale
Placing the client in a knee-chest position is typically used to alleviate cord compression or prolapse by shifting the fetus, not for treating hypotension. This position can actually worsen hypotension by trapping blood in the lower extremities and reducing venous return to the heart, further compromising placental blood flow.
Choice D rationale
Monitoring the client's blood pressure every 30 minutes is a crucial assessment but is not an immediate intervention for acute hypotension with decreased placental perfusion. While ongoing monitoring is essential, immediate actions are required to correct the underlying cause of hypotension and restore adequate blood flow to the placenta.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Herpes simplex virus 2 (HSV-2) can be harmful to a developing fetus and newborn. While primary infection during the first trimester can rarely lead to congenital anomalies, the most significant risk is neonatal herpes, which occurs when the newborn is exposed to the virus during passage through the birth canal if active lesions are present. Neonatal herpes can cause severe, life-threatening complications.
Choice B rationale
Transmission of HSV-2 to the newborn is significantly higher if active genital lesions are present at the time of vaginal birth. The virus can be shed from these lesions and infect the infant as they pass through the birth canal. Therefore, a Cesarean section is typically recommended if active lesions are present at the onset of labor.
Choice C rationale
Wearing tight-fitting undergarments can increase moisture and friction, potentially irritating existing lesions and hindering healing. Loose-fitting cotton undergarments are generally recommended to allow air circulation and reduce irritation, promoting a more favorable environment for lesion resolution and comfort.
Choice D rationale
Antiviral medications, such as acyclovir, valacyclovir, or famciclovir, can help manage genital herpes by reducing the frequency, duration, and severity of outbreaks. They work by inhibiting viral replication. However, these medications do not cure the condition; HSV-2 remains a lifelong viral infection.
Correct Answer is {"A":{"answers":"A"},"B":{"answers":"A"},"C":{"answers":"B"},"D":{"answers":"B"},"E":{"answers":"A"}}
Explanation
- Administer magnesium sulfate bolus: Anticipated. Magnesium sulfate is the drug of choice to prevent seizures in severe preeclampsia or eclampsia. The client shows signs of severe preeclampsia (hypertension, headache, visual disturbances, hyperreflexia, clonus, epigastric pain), so a magnesium sulfate bolus is appropriate to reduce CNS irritability and prevent eclamptic seizures.
- Insert an indwelling urinary catheter: Anticipated. Monitoring urine output is essential in hypertensive disorders of pregnancy to assess kidney function and fluid balance. The client’s urine output (25–55 mL/hr) is borderline low (normal >30 mL/hr), so catheter insertion allows accurate measurement.
- Initiate intravenous (IV) fluids: Contraindicated. In preeclampsia, patients often have intravascular volume depletion with risk of pulmonary edema due to increased capillary permeability. IV fluids should be carefully restricted to avoid fluid overload, so routine IV fluid initiation is contraindicated unless hypovolemia or dehydration is confirmed.
- Administer nifedipine 30 mg intermittent IV bolus: Contraindicated. Nifedipine, a calcium channel blocker, is given orally for hypertension in pregnancy, but intermittent IV bolus administration is not recommended because it can cause abrupt hypotension and fetal distress.
- Begin intermittent electronic fetal monitoring: Anticipated. Continuous or intermittent fetal monitoring is critical for detecting fetal distress, especially in high-risk pregnancies with maternal hypertension and irregular contractions, ensuring timely intervention if needed.
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