Chapter 40 Drugs Used in Obstetrics

Chapter 40  Drugs Used in Obstetrics

Complete Chapter Questions And Answers
 

Sample Questions

MULTIPLE CHOICE

1. Which drug will the health care provider prescribe to soften the cervix of a woman who is at 42 weeks of gestation?
A.
Methylergonovine (Methergine)
B.
Dinoprostone (Prepidil)
C.
Betamethasone (Celestone)
D.
Terbutaline (Brethine)

ANS: B

Feedback
A
Methergine is used to treat postpartum bleeding.
B
Dinoprostone is a natural chemical in the body that causes uterine and gastrointestinal smooth muscle stimulation. It plays a role in cervical softening and dilation unrelated to uterine muscle stimulation. It is used to start and continue cervical ripening at term.
C
Betamethasone is used to enhance fetal lung development.
D
Terbutaline is used to treat premature labor.

DIF: Cognitive Level: Comprehension REF: 620
TOP: Nursing Process Step: Implementation
MSC: NCLEX Client Needs Category: Physiological Integrity

2. For which reason will betamethasone IM be administered to the mother in premature labor?
A.
To stop uterine contractions
B.
To prevent precipitous labor
C.
To stimulate lung maturity in the fetus
D.
To stimulate prolactin to enhance breast-feeding

ANS: C

Feedback
A
Tocolytic drugs are given to stop uterine contractions.
B
Tocolytic drugs are given to stop uterine contractions.
C
Glucocorticoids may be administered IM to accelerate fetal lung maturation to minimize respiratory distress syndrome.
D
Prolactin production and release are triggered by pituitary hormone, estrogen, and progesterone.

DIF: Cognitive Level: Application REF: 615
TOP: Nursing Process Step: Implementation
MSC: NCLEX Client Needs Category: Physiological Integrity

3. A 26-year-old patient with preeclampsia is receiving IV magnesium sulfate. The 1400 assessment includes blood pressure, 100/70 mm Hg, respiration, 10, fetal heart tone, 100/min, urine output 20 mL/hour, absent patellar reflex. Which is the priority nursing action?
A.
Decrease IV magnesium sulfate to half the dose and reassess the patient and fetus in 15 minutes.
B.
Stop the IV magnesium sulfate and contact the health care provider.
C.
Place the patient on her left side and administer oxygen.
D.
Stop the IV magnesium sulfate and administer calcium gluconate 5 mEq IV over 3 minutes.

ANS: D

Feedback
A
The treatment for magnesium intoxication is to discontinue the infusion and administer the antidote, calcium gluconate.
B
The treatment for magnesium intoxication is to discontinue the infusion and administer the antidote, calcium gluconate.
C
The treatment for magnesium intoxication is to discontinue the infusion and administer the antidote, calcium gluconate.
D
The patient is exhibiting signs of magnesium sulfate toxicity, including respiratory depression. The infusion should be stopped at once. The antidote, calcium gluconate, should be administered.

DIF: Cognitive Level: Application REF: 624
TOP: Nursing Process Step: Evaluation
MSC: NCLEX Client Needs Category: Physiological Integrity

4. Which drug is administered after delivery to reduce the risk of postpartum hemorrhage after the placenta has been delivered?
A.
Oxytocin (Pitocin)
B.
Magnesium sulfate
C.
Vitamin K
D.
Dopamine

ANS: A

Feedback
A
Uterine stimulants, primarily oxytocin, given in low-dose infusions after delivery of the fetus and placenta, help stimulate firm uterine contractions to reduce the risk of postpartum hemorrhage from an atonic uterus.
B
Magnesium sulfate is given to treat eclampsia and preeclampsia.
C
Vitamin K is given to prevent hemorrhage.
D
Dopamine is given to treat hypotension.

DIF: Cognitive Level: Comprehension REF: 620
TOP: Nursing Process Step: Implementation
MSC: NCLEX Client Needs Category: Health Promotion and Maintenance