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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?

A.

Early decelerations.

B.

Late decelerations.

C.

Variable decelerations.

D.

Prolonged decelerations.

Answer and Explanation

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 A

Explanation

Choice A rationale

Late decelerations are a sign of uteroplacental insufficiency and fetal hypoxia. They occur after the peak of a contraction and indicate that the fetus is not receiving enough oxygen. This requires immediate intervention to improve fetal oxygenation and prevent fetal distress.

Choice B rationale

Variability in fetal heart rate of 12 bpm is considered moderate variability, which is a reassuring sign of fetal well-being. It indicates that the fetus has a healthy autonomic nervous system and is not in distress.

Choice C rationale

Accelerations in fetal heart rate are also a reassuring sign. They indicate that the fetus is well-oxygenated and responding appropriately to stimuli. No intervention is needed for accelerations.

Choice D rationale

A baseline fetal heart rate of 140 bpm is within the normal range (110-160 bpm) and does not indicate any immediate concern. It is a sign of a healthy, well-oxygenated fetus.

Correct Answer is A

Explanation

Choice A rationale

A reactive non-stress test (NST) indicates that the fetal heart rate increases appropriately with fetal movements, suggesting good fetal oxygenation and neurological function. This is the desired outcome for an NST4.

Choice B rationale

A non-reactive NST means the fetal heart rate did not increase with movements, which could indicate fetal hypoxia or other issues. Further testing would be needed to assess fetal well-being.

Choice C rationale

An inconclusive NST means the test did not provide enough information to determine fetal well-being, possibly due to fetal sleep cycles or maternal factors. Additional testing would be required.

Choice D rationale

A positive NST is not a standard term used in fetal monitoring. The correct terms are reactive or non-reactive.

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