A nurse is caring for a patient who is in labor and is placed on a monitor.How should the nurse determine the duration of contractions?
Count the time from the end of one contraction to the beginning of the next contraction.
Count the time from the middle of one contraction to the end of the same contraction.
Count the time from the beginning of one contraction to the end of the same contraction.
Count the time from the beginning of one contraction to the beginning of the next contraction.
The Correct Answer is C
The correct answer is choice C. Count the time from the beginning of one contraction to the end of the same contraction.
This is because the duration of a contraction is the length of time that the uterine muscle is tightening and relaxing.
The duration is measured from the start of one contraction until the end of that same contraction.
Choice A is wrong because it measures the frequency of contractions, not the duration.
The frequency is the time between the start of one contraction and the start of the next one.
Choice B is wrong because it measures only half of the duration of a contraction.
The middle of a contraction is when the uterine muscle reaches its peak intensity and then starts to relax.
Choice D is wrong because it measures both the duration and the interval of contractions.
The interval is the time between the end of one contraction and the start of the next one.
Normal ranges for contractions during labor are:
• Duration: 30 to 90 seconds
• Frequency: 2 to 5 minutes apart
• Interval: 30 to 120 seconds
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is choice A and it indicates fetal distress because it is a sign oflate deceleration.Late decelerations are due touteroplacental insufficiencyas the result of decreased blood flow and oxygen to the fetus during the uterine contractions.This causeshypoxemiaand can lead to fetal acidosis and neurological damage.
Choice B is wrong because it indicates anormal variabilityin the fetal heart rate, which reflects a healthy autonomic nervous system.A normal fetal heart rate is 120-160 beats per minute.
Choice C is wrong because it indicates anearly accelerationin the fetal heart rate, which is a benign finding that may occur with fetal movement or stimulation.
Choice D is wrong because it indicates anearly decelerationin the fetal heart rate, which is a normal response to fetal head compression during contractions.
It does not indicate fetal distress.
Normal ranges for fetal heart rate patterns are:
• Baseline: 120-160 beats per minute
• Variability: 6-25 beats per minute
• Accelerations: at least 15 beats per minute above baseline for at least 15 seconds
• Decelerations: none or early (mirror contractions)
Correct Answer is B
Explanation
This is because late fetal heart rate decelerations are a sign of uteroplacental insufficiency, which means that the placenta is not delivering enough oxygen and nutrients to the fetus.Oxytocin can cause uterine tachysystole, which is excessive and frequent contractions that reduce blood flow to the placenta.Therefore, stopping the oxytocin infusion can help improve placental perfusion and fetal oxygenation.
Choice A is wrong because documenting the findings is not a priority action in this situation.
The nurse should first intervene to address the cause of late decelerations and then document the actions and outcomes.
Choice C is wrong because raising the head of the patient’s bed 30 degrees does not directly affect the placental blood flow or fetal oxygenation.
It may help with maternal comfort and breathing, but it is not an essential action for late decelerations.
Choice D is wrong because notifying the health care provider is not the first action to take.The nurse should first attempt to correct the cause of late decelerations by pausing the oxytocin infusion and then notify the health care provider if there is no improvement or if there are other signs of fetal distress.
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