A nurse is evaluating the effectiveness of magnesium sulfate therapy for a client who is in pre-term labor.

Which of the following findings indicates that the therapy is successful?

The client reports decreased uterine contractions

The client’s blood pressure decreases to within normal limits

The client’s deep tendon reflexes are 2+

The client’s urine output increases to more than 30 mL/hr

Answer and Explanation

The Correct Answer is A

Magnesium sulfate is a tocolytic drug that inhibits uterine activity and relaxes smooth muscles. The goal of magnesium sulfate therapy for a client who is in pre-term labor is to stop or reduce the frequency and intensity of contractions.

Choice B is wrong because the client’s blood pressure decreases to within normal limits.

Magnesium sulfate is not an antihypertensive drug and does not lower blood pressure. It is used to prevent seizures in clients with preeclampsia or eclampsia.

Choice C is wrong because the client’s deep tendon reflexes are 2+.

This is a normal finding and does not indicate the effectiveness of magnesium sulfate therapy. A decrease or loss of deep tendon reflexes may indicate magnesium toxicity, which is a serious complication that requires immediate intervention.

Choice D is wrong because the client’s urine output increases to more than 30 mL/hr.

This is also a normal finding and does not indicate the effectiveness of magnesium sulfate therapy. A decrease in urine output may indicate renal impairment or magnesium toxicity, which are both adverse effects of the drug.

The normal range for serum magnesium level is 1.5 to 2.5 mEq/L or 1.8 to 3 mg/dL. The therapeutic range for magnesium sulfate management is 5 to 8 mg/dL.

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Correct Answer is B

Explanation

Cervix is shortened and thinned.This indicates cervical effacement, which is the thinning and softening of the cervix in preparation for childbirth.Cervical effacement is measured in percentages, from 0% (no effacement) to 100% (fully effaced).

Choice A is wrong because cervix is soft and pliable does not necessarily mean it is effaced.The cervix can soften before it thins and shortens.

Choice C is wrong because cervix is dilated and open indicates cervical dilation, which is the opening of the cervix.Cervical dilation is measured in centimeters, from 0 cm (closed) to 10 cm (fully dilated).

Cervical dilation and effacement are related, but not the same.

Choice D is wrong because cervix is posterior and high indicates the position of the cervix in relation to the vagina.The cervix can move from posterior (back) to anterior (front) and from high to low as labor progresses.

The position of the cervix does not indicate effacement.

A. To suppress uterine contractions B. To prevent infection C. To promote fetal lung maturity D. To reduce maternal blood pressure

Correct Answer is C

Explanation

To promote fetal lung maturity.Betamethasone (Celestone) is a type of corticosteroid that can help reduce the risk of respiratory distress syndrome and other complications in preterm infants by accelerating the development of their lungs.It is recommended for pregnant women between 24 0/7 weeks and 36 6/7 weeks of gestation who are at risk of preterm delivery within 7 days.

Choice A is wrong because betamethasone does not suppress uterine contractions.

It has no effect on the cause of preterm labor.

Choice B is wrong because betamethasone does not prevent infection.

It may actually increase the risk of infection by suppressing the immune system.

Choice D is wrong because betamethasone does not reduce maternal blood pressure.

It may actually cause hypertension and hyperglycemia as side effects.

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A nurse is evaluating the effectiveness of magnesium sulfate therapy for a client who is in pre-term labor. Which of the following findings indicates that the therapy is successful?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is performing a digital examination on a client who is at 34 weeks of gestation and has pre-term labor. Which of the following findings indicates cervical effacement?

Correct Answer is B

Explanation

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Correct Answer is C

Explanation

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A nurse is evaluating the effectiveness of magnesium sulfate therapy for a client who is in pre-term labor.

Which of the following findings indicates that the therapy is successful?