A nurse is preparing to perform a nonstress test (NST) for a pregnant client at 38 weeks of gestation.
What equipment should the nurse gather for this procedure? (Select all that apply.)
A reclining chair or bed
A belt with two transducers
A paper strip or a computer screen
A button for the client to press
An acoustic stimulator
Correct Answer : B,C
A nonstress test (NST) is a non-invasive test used to evaluate a baby’s well-being by monitoring fetal heartbeat and movements. The equipment needed for this procedure includes a belt with two transducers and a paper strip or a computer screen. The belt with two transducers is used to measure the fetal heart rate and uterine contractions, while the paper strip or computer screen displays the results.
Choice A is wrong because a reclining chair or bed is not necessary for an NST. The test can be done while the pregnant person is seated comfortably in a chair or resting in a reclined position on a table.
Choice D is wrong because a button for the client to press is not required for an NST. The test does not depend on the client’s perception of fetal movement, but rather on the objective measurement of fetal heart rate and uterine activity.
Choice E is wrong because an acoustic stimulator is not part of the standard equipment for an NST.
An acoustic stimulator is a device that produces a loud noise to stimulate the fetus and elicit a heart rate response. It may be used in some cases when the NST results are nonreactive, but it is not routinely used.
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Related Questions
Correct Answer is A
Explanation
Reactive NST.This means that the fetal heart rate increased by at least 15 beats per minute (bpm) for at least 15 seconds twice or more in a 20-minute period.This indicates that the baby is getting enough oxygen and is doing well.
Nonreactive NST is wrong because it means that the fetal heart rate did not meet the criteria for a reactive NST.This could mean that the baby is not getting enough oxygen, is asleep, or has a problem with the nervous system.
Positive NST is wrong because it is not a term used to describe the results of a nonstress test.It is a term used to describe the results of a contraction stress test (CST), which is a different test that measures how the fetal heart rate responds to uterine contractions.
Negative NST is wrong because it is also not a term used to describe the results of a nonstress test.It is another term used to describe the results of a contraction stress test (CST), which means that the fetal heart rate did not show any signs of distress during contractions.
The normal range for fetal heart rate is 110 to 160 bpm, with moderate variability.
Variability refers to how much the heart rate changes from beat to beat.Moderate variability means that the heart rate changes by 6 to 25 bpm.Accelerations are brief increases in the heart rate that are usually caused by fetal movement.
Correct Answer is A
Explanation
The NST is reactive, indicating fetal well-being.A reactive NST means that the fetal heart rate increases by at least15 bpmfor at least15 secondstwice or more in a20-minuteperiod.This shows that the fetus is healthy and getting enough oxygen.
Choice B is wrong because a nonreactive NST means that the fetal heart rate does not show the expected accelerations in a 40-minute period, which may indicate fetal compromise.
Choice C is wrong because an inconclusive NST means that the test results are unclear or not enough data was collected, which may require further testing.
Choice D is wrong because an invalid NST means that the test was not performed correctly or there was interference with the fetal heart rate monitoring, which may require a repeat test.
Normal ranges for fetal heart rate are110 to 160 bpmwith moderate variability (5 to 25 bpm) and no decelerations.
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