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 A
Explanation
Choice A reason: Ceftriaxone is a third-generation cephalosporin that is effective against Neisseria gonorrhoeae, the bacteria that causes gonorrhea. It is administered as a single intramuscular injection and has a high cure rate.
Choice B reason: Penicillin G is not the drug of choice for gonorrhea because of the widespread resistance of N. gonorrhoeae to this antibiotic. Penicillin G may be used in combination with other drugs for some cases of gonorrhea, but it is not the first-line treatment.
Choice C reason: Acyclovir is an antiviral drug that is used to treat herpes simplex virus infections, not bacterial infections like gonorrhea. Acyclovir has no effect on N. gonorrhoeae and is not indicated for gonorrhea treatment.
Choice D reason: Tetracycline is a broad-spectrum antibiotic that can be used to treat some bacterial infections, but it is not the drug of choice for gonorrhea. Tetracycline has a lower efficacy and a higher rate of adverse effects than ceftriaxone for gonorrhea treatment.
Correct Answer is D
Explanation
Choice A reason: This is incorrect because oral antiviral therapy is not effective for PID, which is caused by bacterial infection. Antiviral therapy is used for viral infections, such as herpes or HIV.
Choice B reason: This is incorrect because antibiotics only until symptoms subside is not sufficient for PID, which can cause serious complications, such as infertility, ectopic pregnancy, or chronic pelvic pain. Antibiotics should be continued for the full course of treatment, usually 14 days, to ensure complete eradication of the infection.
Choice C reason: This is incorrect because frequent pelvic examination to monitor the progress of healing is not recommended for PID, which can cause inflammation and irritation of the pelvic organs. Pelvic examination should be avoided or minimized to prevent further trauma or spread of the infection.
Choice D reason: This is correct because bed rest in a semi-Fowler position is beneficial for PID, which can cause fluid accumulation and pressure in the pelvic cavity. Bed rest helps to reduce inflammation and pain, while semi-Fowler position helps to drain the fluid and prevent abscess formation.
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