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.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Placenta previa is a condition where the placenta covers the cervix partially or completely. It can cause painless vaginal bleeding, but not abdominal pain.
Choice B reason: Prolapsed cord is a condition where the umbilical cord slips through the cervix and protrudes into the vagina or beyond. It can cause fetal distress, but not abdominal pain or vaginal bleeding.
Choice C reason: Incompetent cervix is a condition where the cervix dilates prematurely and painlessly. It can cause preterm labor and delivery, but not abdominal pain or vaginal bleeding.
Choice D reason: Abruptio placentae is a condition where the placenta separates from the uterine wall before delivery. It can cause severe abdominal pain, vaginal bleeding, and fetal distress. It is a medical emergency that requires immediate intervention.
Correct Answer is B
Explanation
Choice A reason: Polyuria is not an expected finding in a client with severe preeclampsia, as it can indicate dehydration, diabetes, or renal impairment. A client with severe preeclampsia may have oliguria, which is a urine output of less than 500 mL in 24 hours, due to the decreased renal perfusion and function.
Choice B reason: Report of headache is an expected finding in a client with severe preeclampsia, as it can indicate increased intracranial pressure, cerebral edema, or vasospasm. A client with severe preeclampsia may also have other neurological symptoms, such as blurred vision, scotoma, photophobia, or hyperreflexia.
Choice C reason: Tachycardia is not an expected finding in a client with severe preeclampsia, as it can indicate dehydration, infection, anxiety, or fetal distress. A client with severe preeclampsia may have bradycardia, which is a heart rate of less than 60 beats per minute, due to the increased vagal tone and blood pressure.
Choice D reason: Absence of clonus is not an expected finding in a client with severe preeclampsia, as it can indicate normal or decreased neuromuscular irritability. A client with severe preeclampsia may have positive clonus, which is a rhythmic jerking of the foot when the ankle is dorsiflexed, due to the increased reflex excitability and hyperactivity.
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