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
pH: 7.22
pCO2: 50
HCO3: 24
BE: -3 Correct Answer: normal acid-base status