A nurse is caring for a client during a nonstress test (NST). At the end of a 30min period of observation, the nurse notes the following findings: The fetal heart rate baseline is 120/min with minimal variability and no accelerations. There are two decelerations of 15 /min in the fetal heart rate during a period of fetal movement, each lasting 20 seconds. Which of the following
interpretations of these findings should the nurse make?
A reactive test
A negative test
A positive test
A nonreactive test
The Correct Answer is D
A) A reactive test: A reactive NST requires the presence of specific criteria, including at least two fetal heart rate accelerations of at least 15 beats per minute (bpm) lasting for at least 15
seconds in a 20minute period, along with a baseline heart rate within the normal range (110160 bpm) and moderate variability.
B) A negative test: "Negative" is not a term used to describe NST results.
C) A positive test: "Positive" is not a term used to describe NST results.
D) A nonreactive test: This is the correct interpretation. In a nonreactive NST, the fetal heart rate did not demonstrate the required accelerations within the 30minute observation period. The absence of accelerations can indicate potential fetal compromise, and further evaluation, such as a contraction stress test or biophysical profile, may be necessary to assess the fetus's wellbeing.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A: Variable decelerations on the fetal heart rate monitor tracing are suggestive of umbilical cord compression. These decelerations are often V, U, or Wshaped, and their onset, depth, and duration can vary. They are associated with cord compression, which can reduce blood flow to the fetus during contractions. Other options are as follows:
Choice B: Late decelerations are indicative of uteroplacental insufficiency and are not related to umbilical cord problems.
Choice C: Accelerations are reassuring and suggest a responsive, healthy fetus.
Choice D: Early decelerations are usually benign and result from head compression during contractions, not umbilical cord issues.
Correct Answer is C
Explanation
A) Variable decelerations are a result of the administration of IV narcotic analgesics: IV narcotic analgesics can cause changes in the fetal heart rate, but they are more commonly associated with early decelerations, not variable decelerations.
B) Variable decelerations are related to fetal head compression: Fetal head compression is associated with early decelerations, not variable decelerations.
C) Variable decelerations are due to umbilical cord compression: This is the correct answer.
Variable decelerations occur due to compression of the umbilical cord during contractions, leading to transient decreases in fetal blood flow and oxygenation.
D) Variable decelerations are caused by uteroplacental insufficiency: Uteroplacental insufficiency is associated with late decelerations, not variable decelerations.
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