A nurse is evaluating the fetal heart rate tracing of a client who is in pre-term labor and receiving magnesium sulfate.
The nurse should identify that which of the following patterns indicates a potential adverse effect of the medication on the fetus?
Accelerations
Early decelerations
Variable decelerations
Absent variability
The Correct Answer is D
According to the search results, magnesium sulfate can have a negative effect on the fetal heart rate (FHR) by lowering the baseline, decreasing the variability, and reducing the reactivity or acceleration pattern. Absent variability means that there is no fluctuation in the FHR and it indicates fetal hypoxia or acidosis.
This is a potential adverse effect of magnesium sulfate on the fetus and requires immediate intervention.
Choice A. Accelerations is wrong because accelerations are transient increases in the FHR that indicate fetal well-being. They are not affected by magnesium sulfate.
Choice B. Early decelerations is wrong because early decelerations are decreases in the FHR that occur with uterine contractions and are caused by fetal head compression. They are benign and do not indicate fetal distress. They are not associated with magnesium sulfate.
Choice C. Variable decelerations is wrong because variable decelerations are abrupt decreases in the FHR that vary in shape, duration, and timing and are caused by umbilical cord compression.
They may or may not indicate fetal compromise.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Prepare for an emergency cesarean section.This is because the client has pre-term labor that has not responded to tocolytic therapy, which are drugs that are used to delay delivery for a short time.The client’s cervix is dilated to 4 cm and she is experiencing regular contractions every 3 minutes, which are signs of active labor.The baby is at 33 weeks of gestation, which is premature and may have complications such as respiratory distress syndrome or bleeding in the brain.
Therefore, the client needs an emergency cesarean section to deliver the baby as soon as possible and prevent further risks.
Choice A is wrong because administering magnesium sulfate intravenously is a type of tocolytic therapy that the client has already failed.Magnesium sulfate may also have side effects such as nausea, vomiting, flushing, headache, and muscle weakness.
Choice C is wrong because placing the client in Trendelenburg position, which is lying on the back with the feet elevated above the head, is not recommended for preterm labor.This position may increase the risk of aspiration, decrease cardiac output, and impair gas exchange.
Choice D is wrong because administering antibiotics prophylactically is not indicated for preterm labor unless there is evidence of infection in the uterus or membranes.
Antibiotics may also cause allergic reactions or bacterial resistance
Correct Answer is B
Explanation
Blood pressure of 150/90 mmHg.This is because terbutaline can causeelevated blood pressureas a side effect.
The nurse should report this finding to the provider as it may indicate hypertension or a hypertensive crisis.
Choice A is wrong because a heart rate of 110/min is not abnormal for a person who has received terbutaline.Terbutaline can causefast or pounding heartbeatsas a common side effect.
Choice C is wrong because a blood glucose of 90 mg/dL is within the normal range of 70-130 mg/dL before meals.Terbutaline can causetransient hyperglycemia(high blood sugar) as a serious side effect, but this is not the case here.
Choice D is wrong because a temperature of 37°C (98.6°F) is normal for a human being.Terbutaline does not cause fever or hypothermia as a side effect.
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