Questions and Guide Answers
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1. Which of the following is an extrinsic influence on the FHR?
Answer: C. Fetal-placental circulation
2. The most highly oxygenated blood in fetal circulation is carried by
Answer: C. Ductus venosus
3. If fetal arterial pressure begins to fall below normal levels
Answer: A. Baroreceptors cause vasoconstriction and increase the FHR
4. Fetal heart rate variability is defined as fluctuations in the baseline that are
irregular in and .
Answer: B. Amplitude and frequency
5. An increase in the fetal heart rate immediately preceding a variable decel-
eration is caused by
Answer: A. Occlusion of the umbilical vein
6. When assessing a FHR tracing, the first step is to
, Answer: C. Establish the baseline rate
7. Which deceleration in the FHR is considered benign and does not require an
intervention to correct?
Answer: A. Early deceleration
8. If the umbilical vein is the only vessel occluded during cord compression
Answer: B. Oxygenated blood may be restricted from being delivered to the fetus
9. During a fetal sleep cycle, FHR variability is usually .
Answer: C. Minimal
10. Uterine tachysystole is defined as
Answer: B. >5 contractions in 10 mind over 30 minutes
11. Maternal-fetal oxygen and nutrient transfer takes place in the
Answer: B. intervillous space
12. During a contraction, the tocodynamometer detects
Answer: A. Pressure created by tensing of uterine muscle
13. Normal fetal heart rate baseline is
Answer: C. 110-160 bpm
14. Following birth, a fetal cord blood sample is taken. The results are
pH 6.95
pCO2 86 mmHg