A premature infant with respiratory distress syndrome (RDS) receives artificial surfactant. How does the nurse explain surfactant therapy to the parents?
"Your baby needs this medication to fight a possible respiratory tract infection."
"Surfactant is used to reduce episodes of periodic apnea."
"Surfactant improves the ability of your baby's lungs to exchange oxygen and carbon dioxide."
"The drug keeps your baby from requiring too much sedation."
The Correct Answer is C
Choice A reason: This statement is incorrect, as surfactant is not an antibiotic and does not treat infections. Surfactant is a substance that is naturally produced by the lungs to reduce the surface tension and prevent the alveoli from collapsing. Premature infants may have insufficient surfactant, which can cause RDS.
Choice B reason: This statement is partially true, as surfactant can help reduce episodes of periodic apnea, which is a condition where the newborn stops breathing for more than 20 seconds. However, this is not the main purpose of surfactant therapy, and other interventions, such as oxygen, ventilation, and caffeine, may be needed to treat apnea.
Choice C reason: This statement is correct, as surfactant improves the ability of the baby's lungs to exchange oxygen and carbon dioxide, which are essential for life. Surfactant therapy can improve the lung function, reduce the need for mechanical ventilation, and prevent complications, such as bronchopulmonary dysplasia and pulmonary hemorrhage.
Choice D reason: This statement is false, as surfactant does not affect the level of sedation in the newborn. Surfactant is administered through an endotracheal tube, which may require sedation to reduce discomfort and agitation. The nurse should monitor the newborn's vital signs, oxygen saturation, and pain level during and after the procedure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
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.
Correct Answer is A
Explanation
Choice A reason: This statement is correct, as the ultrasound can help diagnose placenta previa, which is a condition where the placenta covers the cervical opening and can cause painless, bright red bleeding in the third trimester. Placenta previa is a serious complication that can affect the delivery and the fetal oxygenation.
Choice B reason: This statement is incorrect, as the biparietal diameter is a measurement of the fetal head that is used to estimate the gestational age and the fetal growth. The biparietal diameter is not related to the cause or the severity of the bleeding.
Choice C reason: This statement is incorrect, as the fetal lung maturity is an assessment of the surfactant level in the amniotic fluid that is used to predict the risk of respiratory distress syndrome in preterm infants. The fetal lung maturity is not related to the cause or the severity of the bleeding.
Choice D reason: This statement is incorrect, as the viability of the fetus is an evaluation of the fetal heart rate, movement, and tone that is used to determine the fetal well-being and distress. The viability of the fetus is not related to the cause or the severity of the bleeding, although it can be affected by it.
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