AWHONN NEONATAL COMPLETE TEST
BANK WITH ACCURATE ANSWERS AND
EXPERT REVIEW NOTES
●● Which of the following is an extrinsic influence on the FHR?
Answer: Fetal-placental circulation
●● Fetal heart rate vaiability is definded as fluctuations in the baseline
that are irregular in
Answer: AMPLITUDE and FREQUENCY
●● The most highly oxygenated blood in fetal circulation is carried by:
Answer: Ductus venosus
●● An increase in the fetal heart rate immediately preceding a variable
deceleration is caused by:
Answer: Occlusion of the umbilical vein
The etiology of variable decelerations is likely related to umbilical
venous and arterial occlusion. Initially, with occlusion of the thin-walled
umbilical vein, venous return to the fetal right atrium is reduced,
producing a reflex tachycardia. This pattern often is observed as a
BANK WITH ACCURATE ANSWERS AND
EXPERT REVIEW NOTES
●● Which of the following is an extrinsic influence on the FHR?
Answer: Fetal-placental circulation
●● Fetal heart rate vaiability is definded as fluctuations in the baseline
that are irregular in
Answer: AMPLITUDE and FREQUENCY
●● The most highly oxygenated blood in fetal circulation is carried by:
Answer: Ductus venosus
●● An increase in the fetal heart rate immediately preceding a variable
deceleration is caused by:
Answer: Occlusion of the umbilical vein
The etiology of variable decelerations is likely related to umbilical
venous and arterial occlusion. Initially, with occlusion of the thin-walled
umbilical vein, venous return to the fetal right atrium is reduced,
producing a reflex tachycardia. This pattern often is observed as a
