A nurse is performing a non-stress test (NST) for a client who is 34 weeks pregnant and has pre-eclampsia.
Which of the following fetal heart rate patterns indicates a reactive test?
Two or more accelerations of at least 15 beats/min above baseline lasting for at least 15 seconds in a 20-minute period
No accelerations or decelerations in a 20-minute period
One acceleration of at least 10 beats/min above baseline lasting for at least 10 seconds in a 20-minute period
Variable decelerations with normal variability in a 20-minute period
The Correct Answer is A
Two or more accelerations of at least 15 beats/min above baseline lasting for at least 15 seconds in a 20-minute period. This indicates a reactive test, which means that the fetus is well oxygenated and not in distress.
Choice B is wrong because no accelerations or decelerations in a 20-minute period indicate a non-reactive test, which may suggest fetal hypoxia or acidosis.
Choice C is wrong because one acceleration of at least 10 beats/min above baseline lasting for at least 10 seconds in a 20-minute period is the criterion for a reactive test for gestational age less than 32 weeks, not 34 weeks.
Choice D is wrong because variable decelerations with normal variability in a 20-minute period indicate cord compression or fetal head compression, not a reactive test.
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Related Questions
Correct Answer is C
Explanation
Fetal heart rate decelerations indicate a possible compromise of fetal oxygenation and should be reported to the provider immediately.Decelerations can be caused by various factors such as cord compression, uterine hyperstimulation, maternal hypotension, or placental abruption.
Choice A is wrong because a fetal heart rate of 140 beats per minute is within the normal range of 110 to 160 beats per minute.
Choice B is wrong because uterine contractions every 10 minutes are not abnormal in a client with severe pre-eclampsia who is receiving magnesium sulfate.Magnesium sulfate is used to prevent seizures and lower blood pressure in pre-eclampsia, but it does not stop labor.
Choice D is wrong because uterine contractions lasting 60 seconds are not a sign of …
Correct Answer is A
Explanation
Two or more accelerations of at least 15 beats/min above baseline lasting for at least 15 seconds in a 20-minute period.This indicates a reactive test, which means that the fetus is well oxygenated and not in distress.
Choice B is wrong because no accelerations or decelerations in a 20-minute period indicate a non-reactive test, which may suggest fetal hypoxia or acidosis.
Choice C is wrong because one acceleration of at least 10 beats/min above baseline lasting for at least 10 seconds in a 20-minute period is the criterion for a reactive test for gestational age less than 32 weeks, not 34 weeks.
Choice D is wrong because variable decelerations with normal variability in a 20-minute period indicate cord compression or fetal head compression, not a reactive test.
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