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The primary source of oxygen for the fetus is: ✔Correct Answer-The maternal respiratory
system
When the buffer, or base, gets used up due to the need to neutralize the lactic acid, the results
of a fetal blood sample will show: ✔Correct Answer-an increase in the base deficit (depletion
of the base)
Interruption of oxygen transfer to the fetus may result in the fetal need for ✔Correct Answer-
buffers
Two limitations of the ultrasound transducer are ✔Correct Answer-half-count the fetal heart
rate
double-count the fetal heart rate
The direct fetal electrode (ISL or FSE) records every fetal heart beat, but it is still possible for it
to ✔Correct Answer-Half count the fetal heart rate if the rate is higher than 180-200bpm
The fetal arrhythmia that is of greatest concern is the ✔Correct Answer-Tachyarrhythmia
Initial changes in FHR pattern that may indicate worsening trend of hypoxia include ✔Correct
Answer-Deepening of decelerations with a rising baseline rate
if a tracing has minimal variability and the absence of accelerations on admission, attempts to
assess fetal oxygenation may include: ✔Correct Answer-Maternal abdominal palpation to
stimulate fetus
During a biophysical profile the fetal response that is the last to be lost with fetal hypoxia is
✔Correct Answer-Fetal tone
If the NST is nonreactive and the amniotic fluid volume is <5cm on AFI, this may indicate
✔Correct Answer-Acute fetal hypoxia
The physiologic goal of interventions are to?
a. Increase uteroplacental perfusion
b. Increase umbilical cord perfusion
c. Promote patient comfort and coping ✔Correct Answer-Increase umbilical cord perfusion
When a clinician is reviewing a category three tracing it is important to remember ✔Correct
Answer-It is indicative of an abnormal fetal acid base status