The nurse is caring for a client in labor at term. The nurse reviews the external monitor tracing below. The nurse identifies that the deceleration pattern seen indicates which of the following?
Early decelerations.
Late decelerations.
Variable decelerations.
Prolonged decelerations.
The Correct Answer is B
Choice A rationale
Early decelerations are characterized by a gradual decrease and return to baseline of the fetal heart rate that coincides with the peak of a contraction. They are typically benign and related to fetal head compression.
Choice B rationale
Late decelerations are characterized by a gradual decrease and return to baseline of the fetal heart rate that occurs after the peak of a contraction. They are associated with uteroplacental insufficiency and require prompt intervention to improve fetal oxygenation.
Choice C rationale
Variable decelerations are characterized by an abrupt decrease in fetal heart rate that varies in duration, intensity, and timing relative to contractions. They are often caused by umbilical cord compression and may require interventions to relieve the compression.
Choice D rationale
Prolonged decelerations are characterized by a decrease in fetal heart rate that lasts longer than 2 minutes but less than 10 minutes. They indicate a more severe and sustained disruption in fetal oxygenation and require immediate intervention.
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View Related questions
Correct Answer is C
Explanation
Choice A rationale
Keeping four side rails up is a safety measure to prevent falls, but it is not specific to the care of a client in active labor. It is a general safety precaution used for clients who are at risk of falling or have impaired mobility.
Choice B rationale
Inserting an indwelling urinary catheter is not a routine action for a client in active labor. Catheterization is typically reserved for specific medical indications, such as urinary retention or the need for accurate urine output measurement in certain high-risk situations.
Choice C rationale
Checking the cervix prior to administering medication is crucial in active labor. This ensures that the medication is appropriate for the stage of labor and helps avoid complications such as administering pain relief too early or too late, which could affect labor progression and fetal well-being.
Choice D rationale
Monitoring the fetal heart rate (FHR) every hour is important, but it may not be frequent enough in active labor. Continuous or more frequent monitoring is often required to promptly detect any signs of fetal distress and take appropriate actions.
Correct Answer is A
Explanation
Choice A rationale
This statement is incorrect. Vagus nerve stimulation actually decreases FHR variability. The vagus nerve, part of the parasympathetic nervous system, slows the heart rate and reduces variability.
Choice B rationale
This statement is correct. Baroreceptors are sensors located in blood vessels that help regulate blood pressure by detecting changes in the stretch of the vessel walls. They play a crucial role in maintaining stable blood pressure levels.
Choice C rationale
This statement is correct. The autonomic nervous system, which includes the sympathetic and parasympathetic nervous systems, controls the fetal heart rate. It regulates the balance between heart rate acceleration and deceleration.
Choice D rationale
This statement is correct. Chemoreceptors respond to changes in blood gas levels, such as oxygen and carbon dioxide. They help regulate respiratory and cardiovascular responses to maintain homeostasis.