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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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
C. Fetal heart rate decelerations.
Fetal heart rate decelerations are temporary drops in the fetal heart rate that can indicate fetal distress or lack of oxygen.There are three types of decelerations: early, late and variable.Early decelerations are benign and caused by compression of the fetus’s head during a uterine contraction.Late decelerations are caused by uteroplacental insufficiency, which is a decrease in blood flow to the placenta.Variable decelerations are the most common type and vary in shape, duration and intensity.They are often caused by cord compression or other factors that affect fetal oxygenation.
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A. Fetal heart rate of 140 beats per minute.
Statement is wrong because this is a normal fetal heart rate.The normal range for fetal heart rate is 120-160 beats per minute.
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B. Uterine contractions every 10 minutes.
Statement is wrong because this is a normal frequency for uterine contractions during early labor.
The normal range for uterine contractions is 5-10 minutes apart.
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D. Uterine contractions lasting 60 seconds.
Statement is wrong because this is a normal duration for uterine contractions during active labor.
The normal range for uterine contractions is 45-90 seconds long.
Correct Answer is C
Explanation
The target blood pressure goal for a client with severe pre-eclampsia is less than 160/110 mmHg.
This is because lowering the blood pressure too much or too fast can compromise the placental perfusion and fetal oxygenation.
Choice A is wrong because it is the target blood pressure goal for a client with chronic hypertension or gestational hypertension without severe features.
Choice B is wrong because it is the target blood pressure goal for a client with mild pre-eclampsia.
Choice D is wrong because it is too high and can increase the risk of maternal and fetal complications such as stroke, eclampsia, placental abruption, and fetal growth restriction.
Normal blood pressure ranges are less than 120/80 mmHg for systolic and diastolic pressures respectively.
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