A nurse is assessing the fetal heart rate and uterine activity of a client with severe pre-eclampsia who is receiving magnesium sulfate intravenously.
Which of the following findings should the nurse report to the provider immediately?
Fetal heart rate of 140 beats per minute
Uterine contractions every 10 minutes
Fetal heart rate decelerations
Uterine contractions lasting 60 seconds
The Correct Answer is C
C. Fetal heart rate decelerations.
Fetal heart rate decelerations are temporary drops in the fetal heart rate that can indicate fetal distress or lack of oxygen. There are three types of decelerations: early, late and variable. Early decelerations are benign and caused by compression of the fetus’s head during a uterine contraction. Late decelerations are caused by uteroplacental insufficiency, which is a decrease in blood flow to the placenta. Variable decelerations are the most common type and vary in shape, duration and intensity. They are often caused by cord compression or other factors that affect fetal oxygenation.
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A. Fetal heart rate of 140 beats per minute.
Statement is wrong because this is a normal fetal heart rate. The normal range for fetal heart rate is 120-160 beats per minute.
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B. Uterine contractions every 10 minutes.
Statement is wrong because this is a normal frequency for uterine contractions during early labor.
The normal range for uterine contractions is 5-10 minutes apart.
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D. Uterine contractions lasting 60 seconds.
Statement is wrong because this is a normal duration for uterine contractions during active labor.
The normal range for uterine contractions is 45-90 seconds long.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
This indicates that the client has respiratory depression, which is a sign of magnesium toxicity.Magnesium sulfate is given to prevent and treat seizures in clients with eclampsia, but it can also cause adverse effects such as hypotension, decreased urine output, absent or diminished reflexes, and cardiac arrest.
Choice B is wrong because urine output of 50 mL/hr is within the normal range and does not indicate magnesium toxicity.The nurse should monitor the client’s urine output closely and report any decrease below 30 mL/hr.
Choice C is wrong because serum magnesium level of 6 mg/dL is within the therapeutic range of 4 to 7 mg/dL for clients receiving magnesium sulfate.The nurse should monitor the client’s serum magnesium level regularly and report any increase above 8 mg/dL, which indicates toxicity.
Choice D is wrong because patellar reflex of 2+ is normal and does not indicate magnesium toxicity.The nurse should assess the client’s deep tendon reflexes frequently and report any decrease or absence of reflexes, which indicates toxicity.
Correct Answer is ["A","B","C","E"]
Explanation
The correct answer is choice A, B, C and E.The nurse should monitor the client’s deep tendon reflexes hourly because magnesium sulfate can cause neuromuscular blockade and decreased reflexes.The nurse should keep calcium gluconate readily available because it is the antidote for magnesium toxicity.The nurse should maintain a urine output of at least 40 mL/hr because magnesium is excreted by the kidneys and low urine output can indicate renal impairment or fluid overload.The nurse should check the client’s blood pressure every 15 minutes because magnesium sulfate can cause hypotension and preeclampsia can cause hypertension.
Choice D is wrong because the medication should not be infused via a peripheral IV line, but rather through a central line or a large-bore IV catheter to prevent tissue damage.
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