Answers 2023 Updated
Oxygen is transferred from mom to fetus via the placenta through? - Correct Answer
Passive (Simple) Diffusion
Intervillous space perfusion is dependent on? - Correct Answer Adequate Uterine
Blood Flow
Maternal Fetal Exchange is best promoted by which maternal position? - Correct
Answer Either Rt or Lt Lateral
What is transfer down the concentration gradient from higher to lower called? - Correct
Answer Diffusion
The most likely physical rationale for recurrent late decels after epidural is? - Correct
Answer Maternal Sympathetic Blockade
Which FHR pattern would be anticipated when monitoring mono-mono twins? - Correct
Answer Variable Decels
Fetus can survive in an environment w/ a PO2 equal to adult venous blood d/t? -
Correct Answer increased O2 carrying capacity
Variable decels are mediated primarily by? - Correct Answer baroreceptors
The sympathetic branch of the ANS influences FHR to? - Correct Answer increase
the average difference in baseline FHR b/w 30 & 40 weeks is? - Correct Answer 10bpm
usually 5-6; 10 is closest
Fetal blood is most highly oxygenated in the? - Correct Answer Ductus Venosous
An abrupt rise in fetal bp can stimulate? - Correct Answer variable decels
During an acute episode of fetal hypoxemia, fetal blood flow is redistributed primarily to
the? - Correct Answer brain
Over the course of pregnancy, the FHR baseline? - Correct Answer decreases
FHR variability is dependent upon? - Correct Answer cerebral oxygen and intact CNS
chemoreceptors respond mainly to? - Correct Answer hypoxemia