A woman is being treated for preterm labor with magnesium sulfate. Which finding by the nurse indicates magnesium sulfate toxicity?
Select one:

Respiratory rate of 16.

Complaints by the client of feeling ﬂushed and warm.

Fetal heart rate of 120.

Patellar reﬂexes are absent.

Answer and Explanation

The Correct Answer is D

Choice A Reason: Respiratory rate of 16. This is an incorrect answer that indicates a normal finding that does not suggest magnesium sulfate toxicity. Respiratory rate is a measure of the number of breaths per minute, which reﬂects the respiratory function and oxygenation status. Respiratory rate of 16 is within the normal range for adults, which is 12 to 20 breaths per minute. Respiratory rate of 16 does not indicate magnesium sulfate toxicity, which can cause respiratory rate below 12 breaths per minute.

Choice B Reason: Complaints by the client of feeling ﬂushed and warm. This is an incorrect answer that indicates a common side eﬀect that does not indicate magnesium sulfate toxicity. Feeling ﬂushed and warm are sensations that are caused by vasodilation (widening of blood vessels), which can occur as a result of magnesium sulfate administration. Feeling ﬂushed and warm are not signs of magnesium sulfate toxicity, but rather expected and mild reactions that usually subside within a few hours.

Choice C Reason: Fetal heart rate of 120. This is an incorrect answer that indicates a normal finding that does not suggest magnesium sulfate toxicity. Fetal heart rate is a measure of the number of beats per minute of the fetal heart, which reﬂects the fetal well-being and oxygenation status. Fetal heart rate of 120 is within the normal range for fetuses, which is 110 to 160 beats per minute. Fetal heart rate of 120 does not indicate magnesium sulfate toxicity, which can cause fetal heart rate below 110 beats per minute or above 160 beats per minute.

Choice D Reason: Patellar reﬂexes are absent. This is because absent patellar reﬂexes are a sign of magnesium sulfate toxicity, which is a condition where the level of magnesium in the blood is too high, which can cause adverse eﬀects on the neuromuscular and cardiovascular systems. Magnesium sulfate is a medication that is used to prevent or treat preterm labor, which is labor that occurs before 37 weeks of gestation. Magnesium sulfate works by relaxing the uterine muscles and inhibiting uterine contractions. However, magnesium sulfate can also aﬀect other muscles and nerves in the body, and cause symptoms such as muscle weakness, respiratory depression, hypotension, or cardiac arrest.

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Correct Answer is C

Explanation

Choice A Reason: Macrosomic newborn. This is a correct answer that describes a possible complication of post-term pregnancy. A macrosomic newborn is a newborn that weighs more than 4000 grams or 8 pounds 13 ounces at birth. It can occur in post-term pregnancies due to prolonged exposure to maternal glucose and insulin. It can increase the risk of birth injuries, shoulder dystocia, cesarean delivery, and hypoglycemia.

Choice B Reason: Intrauterine growth restriction (IUGR). This is a correct answer that indicates a potential problem of post-term pregnancy. IUGR is a condition where the fetal growth is slower than expected for gestational age. It can occur in post-term pregnancies due to placental insufficiency, aging, or calcification, which can impair nutrient and oxygen delivery to the fetus. It can increase the risk of fetal distress, hypoxia, acidosis, and stillbirth.

Choice C Reason: Umbilical cord prolapse. This is an incorrect answer that does not reﬂect a risk of post-term pregnancy, but rather a risk of other factors such as prematurity, low birth weight, breech presentation, multiple gestation, polyhydramnios, or artificial rupture of membranes.

Choice D Reason: Meconium Aspiration Syndrome (MAS). This is a correct answer that denotes a possible complication of post-term pregnancy. MAS occurs when fetal stool (meconium) enters into the lungs before or during birth, causing airway obstruction, inﬂammation, and infection. MAS usually aﬀects term or post-term infants who experience fetal distress or hypoxia in utero. It can cause respiratory distress syndrome (RDS), persistent pulmonary hypertension (PPHN), or chronic lung disease (CLD).

A. Pulmonary edema. B. Convulsion (seizure). C. Renal failure. D. Retinal edema.

Correct Answer is B

Explanation

Choice A Reason: Pulmonary edema is a condition where ﬂuid accumulates in the lungs, causing shortness of breath and difficulty breathing. It can occur in preeclampsia due to increased blood pressure and ﬂuid retention, but it is not a definitive sign of eclampsia.

Choice B Reason: Convulsion (seizure) is a sudden, involuntary contraction of muscles that can cause loss of consciousness, shaking, and twitching. It is the main symptom of eclampsia and distinguishes it from preeclampsia.

Choice C Reason: Renal failure is a condition where the kidneys fail to filter waste products from the blood, resulting in high levels of creatinine and urea. It can occur in preeclampsia due to reduced blood ﬂow to the kidneys, but it is not a specific indicator of eclampsia.

Choice D Reason: Retinal edema is a condition where ﬂuid leaks into the retina, causing blurred vision and ﬂashes of light. It can occur in preeclampsia due to increased blood pressure and damage to the blood vessels in the eye, but it is not a characteristic feature of eclampsia.

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A woman is being treated for preterm labor with magnesium sulfate. Which finding by the nurse indicates magnesium sulfate toxicity? Select one:

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Naxlex Comprehensive Predictor Exams

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Explanation

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Correct Answer is B

Explanation

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A woman is being treated for preterm labor with magnesium sulfate. Which finding by the nurse indicates magnesium sulfate toxicity?
Select one: