A client at 30 weeks of gestation is experiencing pre-term labor.
Which intervention should the nurse anticipate to suppress uterine contractions?
Administering intravenous fluids
Administering tocolytics
Administering corticosteroids
Administering antibiotics
The Correct Answer is B
Tocolytics are a category of drugs used to delay the labor process. These may be used in situations when a pregnant person begins showing signs of preterm labor —which is any time before 37 weeks of completed pregnancy. Tocolytics may help delay labor by two to seven days.
Some possible explanations for the other choices are:
• Choice A. Administering intravenous fluids.
This is not a correct answer because intravenous fluids are not effective in suppressing uterine contractions. They may be used to correct dehydration or electrolyte imbalance, which can sometimes trigger preterm labor, but they are not a primary intervention for preterm labor.
• Choice C. Administering corticosteroids.
This is not a correct answer because corticosteroids are not tocolytics. They do not stop or slow down uterine contractions, but they help accelerate fetal lung maturity and reduce the risk of neonatal respiratory distress syndrome and other complications of prematurity.
Corticosteroids are often given along with tocolytics, but they have a different function and mechanism of action.
• Choice D. Administering antibiotics.
This is not a correct answer because antibiotics are not tocolytics. They may be used to treat infections that can cause or complicate preterm labor, such as chorioamnionitis or group B streptococcus, but they do not directly affect uterine contractions.
Antibiotics may be given along with tocolytics, but they have a different function.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is B
Explanation
Tachycardia.
Terbutaline is a medication that can be used to stop or delay preterm labor by relaxing the uterine muscles.However, it can also cause serious side effects for both the mother and the baby.One of the most common side effects of terbutaline is tachycardia, which means a fast or irregular heartbeat.This can lead to chest pain, palpitations, shortness of breath, and even cardiac arrhythmias or ischemia.
Therefore, the nurse should monitor the mother’s heart rate and rhythm closely when administering terbutaline.
Choice A is wrong because terbutaline does not cause hypotension, which means low blood pressure.In fact, terbutaline can increase blood pressure by constricting blood vessels.
Choice C is wrong because terbutaline does not cause hyperglycemia, which means high blood sugar.However, terbutaline can interfere with insulin secretion and glucose metabolism in some cases, especially in diabetic mothers.
Therefore, the nurse should monitor the mother’s blood sugar levels when administering terbutaline.
Choice D is wrong because terbutaline does not cause hypokalemia, which means low potassium levels in the blood.However, terbutaline can cause a temporary increase in potassium levels in the baby, which can affect the baby’s heart function.
Therefore, the nurse should monitor the baby’s heart rate and rhythm when administering terbutaline.
Normal ranges for heart rate are 60 to 100 beats per minute for adults and 120 to 160 beats per minute for fetuses.
Normal ranges for blood pressure aretypically between 90/60 mmHg and 120/80 mmHg.
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