Oxygen is transferred from mom to fetus via the placenta through? Ans ~
Passive (Simple) Diffusion
Intervillous space perfusion is dependent on? Ans ~ Adequate Uterine
Blood Flow
Maternal Fetal Exchange is best promoted by which maternal position? Ans
~ Either Rt or Lt Lateral
What is transfer down the concentration gradient from higher to lower
called? Ans ~ Diffusion
The most likely physical rationale for recurrent late decels after epidural is?
Ans ~ Maternal Sympathetic Blockade
Which FHR pattern would be anticipated when monitoring mono-mono twins?
Ans ~ Variable Decels
Fetus can survive in an environment w/ a PO2 equal to adult venous blood
d/t? Ans ~ increased O2 carrying capacity
Variable decels are mediated primarily by? Ans ~ baroreceptors
The sympathetic branch of the ANS influences FHR to? Ans ~ increase
the average difference in baseline FHR b/w 30 & 40 weeks is? Ans ~
10bpm
usually 5-6; 10 is closest
Fetal blood is most highly oxygenated in the? Ans ~ Ductus Venosous
An abrupt rise in fetal bp can stimulate? Ans ~ variable decels
During an acute episode of fetal hypoxemia, fetal blood flow is redistributed
primarily to the? Ans ~ brain
Over the course of pregnancy, the FHR baseline? Ans ~ decreases
FHR variability is dependent upon? Ans ~ cerebral oxygen and intact CNS
chemoreceptors respond mainly to? Ans ~ hypoxemia
pH: 7.22