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Which of the following is an extrinsic influence on the FHR? - correct answer. C. Fetal-
placental circulation
The most highly oxygenated blood in fetal circulation is carried by: - correct answer.
C. Ductus venosus
If fetal arterial pressure begins to fall below normal levels: - correct answer. A.
Baroreceptors cause vasoconstriction and increase the FHR
Fetal heart rate variability is defined as fluctuations in the baseline that are irregular in
_____ and _____. - correct answer. B. Amplitude and frequency
An increase in the fetal heart rate immediately preceding a variable deceleration is
caused by: - correct answer. A. Occlusion of the umbilical vein
When assessing a FHR tracing, the first step is to: - correct answer. C. Establish the
baseline rate
Which deceleration in the FHR is considered benign and does not require an
intervention to correct? - correct answer. A. Early deceleration
If the umbilical vein is the only vessel occluded during cord compression - correct
answer. B. Oxygenated blood may be restricted from being delivered to the fetus
During a fetal sleep cycle, FHR variability is usually ____. - correct answer. C. Minimal
Uterine tachysystole is defined as: - correct answer. B. >5 contractions in 10 mind
over 30 minutes