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The labor and delivery nurse is caring for a client in active labor.

The nurse notes the fetal heart rate baseline is 175 bpm, moderate variability.

Accelerations are absent and no decelerations noted.

 

How should the nurse describe this tracing to the medical provider?

A.

Category I.

B.

Category II.

C.

Category III.

D.

Category IV.

Answer and Explanation

The Correct Answer is B

Choice A rationale

 

Category I tracings are considered normal and are associated with a well-oxygenated, non-acidotic fetus with a normal fetal heart rate baseline, moderate variability, and no late or variable decelerations. However, a baseline heart rate of 175 bpm is considered tachycardia, which does not fit the criteria for Category I.

 

Choice B rationale

 

Category II tracings are indeterminate and include any fetal heart rate pattern that does not fit into Category I or III. A baseline heart rate of 175 bpm with moderate variability and no accelerations or decelerations fits into this category. This indicates that the fetus may be experiencing some stress but is not in immediate danger.

 

Choice C rationale

 

Category III tracings are abnormal and are associated with an increased risk of fetal acidemia. These tracings include absent baseline variability with recurrent late or variable decelerations, bradycardia, or a sinusoidal pattern. The given tracing does not meet these criteria as it shows moderate variability and no decelerations.

 

Choice D rationale

 

There is no Category IV in the classification of fetal heart rate tracings. The standard classification includes only Categories I, II, and III.


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View Related questions

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.

Correct Answer is A

Explanation

Choice A rationale

Breech presentation means the fetus’s buttocks or feet are positioned to be delivered first. Fetal heart tones are often heard above the umbilicus in this position.

Choice B rationale

Transverse lie means the fetus is lying horizontally in the uterus. Fetal heart tones would typically be heard at the sides of the abdomen.

Choice C rationale

Cephalic presentation means the fetus’s head is positioned to be delivered first. Fetal heart tones are usually heard below the umbilicus in this position.

Choice D rationale

Oblique lie means the fetus is positioned diagonally in the uterus. Fetal heart tones can be variable depending on the exact position.

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