A nurse is performing a nonstress test (NST) on a client who is at 36 weeks of gestation and asks "what are you looking for during this test?" Which of the following responses should the nurse make?
"We are looking for increases in fetal heart rate of 15 beats per minute for at least 15 seconds.
"We will draw blood to evaluate the baby's risk of genetic problems.”.
"If the baby moves 5 times in 15 minutes, then the baby is healthy.”.
"I am looking at the ultrasound to see if the baby has any congenital anomalies.”.
The Correct Answer is A
Choice A rationale
A reactive nonstress test demonstrates at least two accelerations in fetal heart rate, defined as an increase of 15 beats per minute above the baseline lasting for 15 seconds, within a 20-minute period. These accelerations indicate adequate fetal oxygenation and a healthy fetal autonomic nervous system response to movement.
Choice B rationale
Drawing blood to evaluate the baby's risk of genetic problems is typically performed through procedures like amniocentesis or chorionic villus sampling, not during a nonstress test. A nonstress test assesses fetal well-being based on heart rate patterns in response to fetal movement.
Choice C rationale
While fetal movement is an indicator of fetal well-being, the nonstress test specifically evaluates the fetal heart rate response to that movement. The number of movements within a specific time frame is a component of a biophysical profile, not the sole indicator in a nonstress test.
Choice D rationale
Ultrasound is used to visualize fetal anatomy and assess for congenital anomalies, which is a component of a fetal anatomy scan typically performed around 18-20 weeks of gestation. A nonstress test primarily monitors fetal heart rate and its reactivity.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Assessing vital signs is important in evaluating a postpartum hemorrhage, but it is not the immediate priority. Significant blood loss can occur before changes in vital signs become apparent due to compensatory mechanisms in the body. Addressing the source of bleeding is the initial critical step.
Choice B rationale
Calling the primary health care provider is a necessary step, but it should occur after the nurse has taken immediate action to address the likely cause of the excessive bleeding. Direct intervention to control the hemorrhage takes precedence over notification.
Choice C rationale
Massaging the fundus is the highest priority because uterine atony, a soft and boggy uterus that does not contract effectively, is the most common cause of early postpartum hemorrhage. Stimulating uterine contraction by massage can help to compress the blood vessels at the placental site and reduce bleeding.
Choice D rationale
Initiating an intravenous (IV) infusion of Ringer's lactate solution is important for volume replacement if bleeding is significant, but it is not the immediate first action. Addressing the uterine atony through fundal massage should be done first to try and control the bleeding.
Correct Answer is D
Explanation
Choice A rationale
While understanding methods of labor induction is important if the pregnancy progresses to 42 weeks, it is not the priority teaching at 31 weeks gestation. The immediate focus should be on recognizing potential complications that could arise before the scheduled induction.
Choice B rationale
The benefits of breastfeeding are important for all pregnant women but are not the priority teaching for a client at 31 weeks who is not yet in labor. Information about breastfeeding can be provided later in the pregnancy.
Choice C rationale
Teaching the signs of labor is important as the client approaches term, but at 31 weeks, the priority is to educate the client on recognizing potential warning signs that require immediate attention, such as decreased fetal movement.
Choice D rationale
Monitoring fetal movement is a crucial teaching point at 31 weeks gestation. A decrease in fetal movement can be an early indicator of fetal compromise and requires prompt evaluation. Instructing the client on how to perform kick counts and when to report changes is a priority for ensuring fetal well-being before the scheduled induction.
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