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 B
Explanation
Choice A reason: Pointing out that inappropriate sexual behavior caused the infection is not helpful, as it may make the woman feel guilty, ashamed, or defensive. The nurse should avoid blaming or judging the woman and focus on providing education and support.
Choice B reason:Positioning the patient in asemi-Fowler position(head of the bed elevated 30–45 degrees) helps promote drainage of pelvic exudate and reduces the risk of abscess formation or further spread of infection. This is a key nursing intervention for patients withacute pelvic inflammatory disease (PID).
Choice C reason: Telling her that antibiotics need to be taken until pelvic pain is relieved is incorrect, as it may lead to incomplete treatment and recurrence of the infection. The nurse should instruct the woman to take the full course of antibiotics as prescribed, regardless of the symptoms.
Choice D reason:While infertility is apotential complicationof PID, it is not a guaranteed outcome. The nurse should provideaccurate informationabout risks but avoid causing unnecessary alarm. The focus should be onprompt treatment and prevention of complications.
Correct Answer is B
Explanation
Choice A reason: Braxton Hicks contractions are irregular, painless uterine contractions that occur throughout pregnancy. They are a probable sign of pregnancy, not a positive sign.
Choice B reason: Fetal movement palpated by the nurse-midwife is a positive sign of pregnancy, as it confirms the presence of a living fetus in the uterus. It can be detected as early as 16 to 20 weeks of gestation.
Choice C reason: A positive pregnancy test is a probable sign of pregnancy, as it indicates the presence of human chorionic gonadotropin (hCG) in the urine or blood. However, it is not a definitive sign, as other conditions can cause elevated hCG levels.
Choice D reason: Quickening is the first perception of fetal movement by the mother, which usually occurs between 16 and 20 weeks of gestation. It is a presumptive sign of pregnancy, not a positive sign.
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