Question 1 of 15
Which qualities are considered normal when assessing fetal heart rate (FHR)?
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FHR variability of <5 beats/min
FHR variability
... [Show More] of ≤5 beats/min is classified as minimal variability and is considered abnormal or indeterminate and may be a sign of fetal compromise.
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Baseline FHRof 140 beats/min
A baseline FHR of 110 to 160 beats/min is considered normal.
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FHR variability of 20 beats/min
FHR variability of 6 to 25 beats/min is classified as moderate variability and is considered normal (reassuring).
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Baseline FHR of 100 beats/min
A baseline FHR below 110 beats/min is classified as bradycardia and is considered abnormal (nonreassuring).
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Baseline FHR of 170 beats/min
A baseline FHR above 160 beats/min is classified as tachycardia and is considered abnormal (nonreassuring).
Question 2 of 15
Which deceleration is considered a normal finding?
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o Variable
Variable decelerations may result from reduced blood flow through the umbilical cord; recurrent variable decelerations may indicate hypoxemia and are nonreassuring.
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o Prolonged
Prolonged decelerations indicate a prolonged interruption in fetal oxygen supply and are an ominous finding; immediate intervention is needed.
• Correct
o Early
Early decelerations are a result of fetal head compression and are considered a normal finding that is not associated with poor fetal status or outcomes.
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o Late
Late decelerations may result if there is impaired oxygen exchange and waste products in the placenta. Late decelerations are nonreassuring.
Question 3 of 15
A patient is concerned about the baseline variability in the heart rate of her fetus. Which responses by the nurse describe the significance of baseline variability to the patient?
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“Variability is an artifact.”
Variability is a characteristic of reassuring fetal heart rate patterns and is not an artifact.
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“Variability is a periodic pattern.”
Variability is a baseline characteristic, not a periodic pattern.
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“Variability demonstrates that there is adequate oxygenation of the fetus.”
Adequate oxygenation of the fetus, demonstrated by variability, is necessary, and therefore variability is significant.
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“Variability suggests that the fetus is able to adapt to the labor process.”
Variability is significant because its presence indicates that the autonomic nervous system is intact, allowing the fetus to adapt to the normal stress of labor.
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“Variability indicates that the fetus has no congenital abnormalities.”
Although variability is a reassuring finding, it cannot predict the presence of congenital abnormalities.
Question 4 of 15
The nurse knows that patient education has been effective when the patient makes which statement about the difference between a tocodynamometer and an intrauterine pressure catheter (IUPC)?
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o “Only the tocodynamometer shows my uterine activity.” Both the tocodynamometer and the IUPC can provide information on uterine activity, such as contraction strength.
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o “The tocodynamometer is much more accurate than the IUPC.”
Because it is placed internally versus outside of the abdomen, the IUPC would give a more accurate reading.
• Correct
o “The tocodynamometer is positioned outside my body, while the IUPC is positioned inside my body.”
Whereas the tocodynamometer is an external monitoring device, the IUPC is an internal monitoring device.
o “The tocodynamometer will be connected to my bedside monitor, but the IUPC will not.”
Both a tocodynamometer and an IUPC can output information via a bedside monitor.
Question 5 of 15
Which uterine activity indicators does the intrauterine pressure catheter (IUPC) measure in mm HG?
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Frequency
Frequency is not a pressure calculation. It is determined by the electronic fetal monitor.
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Duration
Duration is not a pressure calculation. It is determined by the electronic fetal monitor.
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Intensity
Contraction intensity is measured by the IUPC in mm Hg and is 50 to 75 mm Hg during labor and up to 110 mm Hg with pushing during the second stage.
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Resting tone
Resting tone is measured by the IUPC in mm Hg and is usually between 5 and 15 mm Hg.
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Variability
Variability is an indicator of fetal heart rate, not uterine activity. It is not measured by an IUPC. [Show Less]