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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Indomethacin is a nonsteroidal anti-inflammatory drug (NSAID) that helps close the ductus arteriosus, a blood vessel connecting two arteries of the heart (aorta and pulmonary artery) in fetus.This drug is effective only among premature babies.
Choice B.Prostaglandin E1 is wrong because it is used to keep the ductus arteriosus open in some congenital heart defects that require surgery.
Choice C.Furosemide is wrong because it is a diuretic that reduces fluid retention and blood pressure, but does not affect the ductus arteriosus.
Choice D.Digoxin is wrong because it is a cardiac glycoside that strengthens the heart muscle contractions and regulates the heart rhythm, but does not affect the ductus arteriosus.
Correct Answer is B
Explanation
It will increase fetal lung maturity.
Betamethasone is a type of corticosteroid that is given to pregnant women who are at risk of preterm delivery between 24 and 34 weeks of gestation.It helps to improve neonatal outcomes by reducing the incidence of respiratory distress syndrome and other complications.Betamethasone works by stimulating the production and release of surfactant, a substance that lubricates the lungs and prevents them from collapsing when the baby breathes.
Choice A is wrong because betamethasone does not affect maternal blood pressure.
Choice C is wrong because betamethasone does not reduce uterine contractions.
Choice D is wrong because betamethasone does not prevent neonatal infection.
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