A nurse is admitting a client who is at 30 weeks of gestation and is in preterm labor. The client has a new order for betamethasone and asks the nurse about the purpose of this medication. The nurse should provide which of the following explanations?
"It promotes fetal lung maturity."
"It halts cervical dilation."
"It increases the fetal heart rate."
"It is used to stop preterm labor contractions."
The Correct Answer is A
Choice A reason: This statement is correct, as betamethasone is a corticosteroid that is given to pregnant women who are at risk of delivering before 34 weeks of gestation. Betamethasone stimulates the production of surfactant, which is a substance that prevents the alveoli from collapsing and improves the lung function of the fetus.
Choice B reason: This statement is incorrect, as betamethasone does not affect the cervical dilation, which is a sign of labor progression. Betamethasone does not stop or delay labor, but rather reduces the complications of prematurity, such as respiratory distress syndrome, intraventricular hemorrhage, or necrotizing enterocolitis.
Choice C reason: This statement is incorrect, as betamethasone does not increase the fetal heart rate, which is a measure of fetal well-being. Betamethasone may cause transient fetal bradycardia, which is a decrease in the fetal heart rate, due to the increased vagal tone and blood pressure. The nurse should monitor the fetal heart rate and notify the provider if there are any signs of fetal distress.
Choice D reason: This statement is incorrect, as betamethasone is not used to stop preterm labor contractions, which are caused by the uterine muscle activity. Betamethasone does not have any tocolytic effect, which is the ability to inhibit uterine contractions. Other medications, such as magnesium sulfate, nifedipine, or indomethacin, may be used to stop preterm labor contractions.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: This client should be seen first, as she has the most urgent and acute problem that requires immediate assessment and intervention. Severe pain after a cesarean birth can indicate infection, hemorrhage, or wound dehiscence, which are serious complications that can affect the client's recovery and well-being. The nurse should evaluate the client's pain level, location, and characteristics, and administer analgesics as prescribed. The nurse should also inspect the incision site, monitor the vital signs and lochia, and provide comfort measures.
Choice B reason: This client should be seen second, as she has a chronic and stable problem that requires ongoing monitoring and management. Preeclampsia is a hypertensive disorder of pregnancy that can cause complications, such as eclampsia, HELLP syndrome, or placental abruption. However, this client has a mild elevation of blood pressure that does not indicate severe preeclampsia or imminent eclampsia. The nurse should check the client's urine protein, reflexes, and edema, and report any signs of worsening condition to the provider.
Choice C reason: This client should be seen third, as she has a normal and expected outcome that requires routine education and discharge planning. A vaginal delivery without complications does not pose any significant risk or concern for the client or the newborn. The nurse should review the discharge instructions, such as follow-up appointments, self-care, breastfeeding, and warning signs, and answer any questions that the client may have.
Choice D reason: This client should be seen last, as she has a common and benign finding that requires reassurance and documentation. A scant amount of lochia after a vaginal birth is normal and expected, as it reflects the healing and involution of the uterus. The nurse should assess the color, odor, and consistency of the lochia, and provide perineal care and hygiene education to the client.
Correct Answer is C
Explanation
Choice A reason: Prostaglandin E2 is not an appropriate medication for the client, because it is a uterotonic agent that stimulates uterine contractions and cervical ripening. Prostaglandin E2 is used to induce labor, not to stop it.
Choice B reason: Methylergonovine is not an appropriate medication for the client, because it is a uterotonic agent that causes sustained uterine contractions and vasoconstriction. Methylergonovine is used to prevent or treat postpartum hemorrhage, not to stop preterm labor.
Choice C reason: Terbutaline is an appropriate medication for the client, because it is a tocolytic agent that relaxes the uterine smooth muscle and inhibits contractions. Terbutaline is used to delay preterm labor and prolong pregnancy.
Choice D reason: Oxytocin is not an appropriate medication for the client, because it is a uterotonic agent that stimulates uterine contractions and milk ejection. Oxytocin is used to augment labor, not to stop it.
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