A nurse is assisting with the care of a client who has severe preeclampsia and is receiving magnesium sulfate IV at 2 g/hr. Which of the following findings indicates that it is safe for the nurse to continue the infusion?
Respiratory rate of 16/min.
Heart rate of 60/min.
Urine output of 50 mL in 4 hr.
Diminished deep-tendon reflexes.
The Correct Answer is A
The correct answer is choice A: Respiratory rate of 16/min.
Choice A rationale:
A respiratory rate of 16/min is within the normal range for adults, which is typically between 12 to 20 breaths per minute. In the context of severe preeclampsia, maintaining a normal respiratory rate is crucial when administering magnesium sulfate IV, as one of the signs of magnesium toxicity is respiratory depression. Therefore, a respiratory rate of 16/min indicates that the client is not experiencing respiratory depression and it is safe to continue the magnesium sulfate infusion.
Choice B rationale:
A heart rate of 60/min is at the lower end of the normal range, which is 60 to 100 beats per minute for adults. However, bradycardia or a low heart rate can be a sign of magnesium sulfate toxicity, especially if accompanied by other symptoms such as hypotension or altered mental status. Without additional context, a heart rate of 60/min alone does not necessarily indicate it is unsafe to continue the infusion, but it would require further assessment.
Choice C rationale:
A urine output of 50 mL in 4 hours is significantly below the expected minimum of 30 mL/hour for adults. Adequate urine output is an important indicator of kidney function and is essential for the excretion of magnesium. In the case of magnesium sulfate infusion for severe preeclampsia, a low urine output could indicate renal insufficiency and an increased risk of magnesium toxicity. Therefore, a urine output of 50 mL in 4 hours is a contraindication for continuing the infusion without further evaluation.
Choice D rationale:
Diminished deep-tendon reflexes can be a sign of magnesium toxicity. Deep-tendon reflexes are assessed to monitor for signs of magnesium overdose during infusion, as magnesium acts as a central nervous system depressant at high levels. If deep-tendon reflexes are diminished, it may suggest that the serum magnesium levels are too high, and the infusion should be paused or discontinued to prevent further toxicity.
In summary, the only finding that clearly indicates it is safe to continue the magnesium sulfate infusion is a normal respiratory rate, as provided in choice A. The other options either require further assessment or are indicators of potential magnesium toxicity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale:
The client's statement, "I need to schedule the test when the baby is usually active,”. is accurate and demonstrates a good understanding of the nonstress test (NST). The NST is typically performed to assess the baby's heart rate and movements when they are active, which provides better insights into the baby's well-being.
Choice B rationale:
The client's statement, "The baby's heart rate will be monitored during the test,”. is correct and indicates a solid grasp of the purpose of the NST. During the test, the baby's heart rate is continuously monitored to assess their overall well-being and any signs of distress.
Choice C rationale:
This is the correct answer. The client's statement, "I will have to lie on my back during the test,”. indicates a need for further teaching. In an NST, pregnant individuals are usually asked to lie on their left side, not on their back. The left lateral position enhances blood flow to the placenta and the baby, making it the preferred position for this test.
Choice D rationale:
The client's statement, "I will be able to go to the bathroom during the test as necessary,”. is accurate and demonstrates a good understanding of the NST procedure. Unlike some other prenatal tests, NST allows pregnant individuals to change positions, including using the bathroom if needed, to ensure their comfort during the monitoring process.
Correct Answer is ["6"]
Explanation
The Apgar s core is a s coring s ys tem doctors and nurs es us e to as s es s newborns after they’re born. The Apgar s coring s ys tem is divided into five categories : Activity, Puls e, Grimace, Appearance, and Res piration. Each category receives a s core of 0 to 2 points 1.
Bas ed on the information you provided, the newborn’s 1-min Apgar s core would be calculated as follows :
• Activity: s ome flexion of extremities = 1 point
• Puls e: heart rate 110/ min = 2 points
• Grimace: grimace in res pons e to s uctioning of the nares = 1 point
• Appearance: body pink in color with blue extremities = 1 point
• Res piration: s low, weak cry = 1 point
Adding up the points for each category, the newborn’s 1-min Apgar s core would be 6.
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