What should a nurse know about the contraction stress test (CST) when providing care for the antepartum woman?
It sometimes uses vibroacoustic stimulation.
It is considered negative if no late decelerations are observed with the contractions.
It is an invasive test; however, contractions are stimulated.
It is more effective than nonstress test (NST) if the membranes have already been ruptured.
It is more effective than nonstress test (NST) if the membranes have already been ruptured.
The Correct Answer is B
Choice A reason: Vibroacoustic stimulation is a technique that uses sound to stimulate the fetus and elicit a response. It is sometimes used in conjunction with the nonstress test (NST), not the CST. The NST measures the fetal heart rate (FHR) in response to fetal movement, while the CST measures the FHR in response to uterine contractions.
Choice B reason: A negative CST result means that the FHR does not show any late decelerations during at least three contractions in a 10-minute period. Late decelerations are decreases in the FHR that begin after the peak of a contraction and return to the baseline after the contraction ends. They indicate uteroplacental insufficiency, which means that the placenta is not delivering enough oxygen and nutrients to the fetus. A negative CST result is reassuring and suggests that the fetus is well-oxygenated and can tolerate labor².
Choice C reason: The CST is not an invasive test, as it does not involve inserting any instruments or devices into the uterus or the fetus. However, it does require stimulating contractions, either by giving the pregnant woman oxytocin (a hormone that causes uterine contractions) or by having her rub her nipples (which also releases oxytocin). The contractions can be uncomfortable and may trigger preterm labor in some cases.
Choice D reason: The CST is not more effective than the NST if the membranes have already been ruptured. In fact, the CST is contraindicated (not recommended) in women who have ruptured membranes, as it can increase the risk of infection and bleeding. The NST is a safer and simpler alternative to the CST, as it does not require stimulating contractions. However, the NST may not be as reliable as the CST in detecting fetal compromise.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Asking the woman to reschedule the appointment for the examination is not the best response, as it may delay the detection and treatment of any potential problems. The nurse should inform the woman about the possible effect of the vaginal cream on the Pap test and offer her the option to reschedule or proceed with the examination.
Choice B reason: Asking the woman to describe the symptoms that indicate to her that she has a vaginal infection is a good way to assess the woman's condition and provide education, but it is not the initial response. The nurse should first inform the woman about the possible effect of the vaginal cream on the Pap test and then ask her about her symptoms.
Choice C reason: Reassuring the woman that using vaginal cream is not a problem for the examination is not true, as vaginal creams can alter the pH of the vaginal environment and affect the accuracy of the Pap test. The nurse should inform the woman about the possible effect of the vaginal cream on the Pap test and explain the importance of avoiding vaginal creams, douches, or intercourse for 48 hours before the test.
Choice D reason: Informing the woman that vaginal creams may interfere with the Pap test for which she is scheduled is the best response, as it educates the woman about the purpose and procedure of the Pap test and allows her to make an informed decision about whether to reschedule or proceed with the examination. The nurse should also explain the risks and benefits of both options and respect the woman's choice.
Correct Answer is B
Explanation
Choice A reason: Genetic changes and anomalies are not the most dangerous effect, as they are rare and not directly caused by smoking. Smoking can increase the risk of some birth defects, such as cleft lip and cleft palate, but these are not genetic changes and can be corrected by surgery. Smoking can also cause chromosomal abnormalities in the eggs, but these usually result in miscarriage or stillbirth, not live births.
Choice B reason:Maternal smoking is a significant risk factor for intrauterine growth restriction (IUGR). Nicotine and carbon monoxide from cigarettes reduce oxygen supply to the fetus, leading to lower birth weights and smaller body lengths.
Choice C reason: Fetal addiction to the substance inhaled is not the most dangerous effect, as it is not permanent and can be treated by medication and supportive care. Smoking can expose the fetus to nicotine, carbon monoxide, and other harmful chemicals, which can cross the placenta and affect the fetal brain and nervous system. Smoking can also cause withdrawal symptoms in the newborn, such as irritability, tremors, and difficulty feeding.
Choice D reason:Although prenatal exposure to smoking can affect neurodevelopment and is associated with behavioral issues, extensive central nervous system damage is not the most immediate or dangerous effect. The most critical concern remains intrauterine growth restriction.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.