NCC EFM Exam Practice Questions and
correct answers
Oxygen is transferred from mom to fetus via the placenta through?
Passive (Simple) Diffusion
Intervillous space perfusion is dependent on?
Adequate Uterine Blood Flow
Maternal Fetal Exchange is best promoted by which maternal position?
Either Rt or Lt Lateral
What is transfer down the concentration gradient from higher to lower called?
Diffusion
The most likely physical rationale for recurrent late decels after epidural is?
Maternal Sympathetic Blockade
Which FHR pattern would be anticipated when monitoring mono-mono twins?
Variable Decels
Fetus can survive in an environment w/ a PO2 equal to adult venous blood d/t?
increased O2 carrying capacity
Variable decels are mediated primarily by?
baroreceptors
The sympathetic branch of the ANS influences FHR to?
increase
the average difference in baseline FHR b/w 30 & 40 weeks is?
10bpm
usually 5-6; 10 is closest
Fetal blood is most highly oxygenated in the?
Ductus Venosous
An abrupt rise in fetal bp can stimulate?
variable decels
During an acute episode of fetal hypoxemia, fetal blood flow is redistributed
primarily to the?
brain
Over the course of pregnancy, the FHR baseline?
decreases
FHR variability is dependent upon?
cerebral oxygen and intact CNS
chemoreceptors respond mainly to?
hypoxemia
pH: 7.22
pCO2: 50
HCO3: 24
BE: -3
normal acid-base status
(if pH is normal, answer is normal)
Fetal respiratory academia is indicated by a pH of 7.04 and a PCO2 of?
>60
correct answers
Oxygen is transferred from mom to fetus via the placenta through?
Passive (Simple) Diffusion
Intervillous space perfusion is dependent on?
Adequate Uterine Blood Flow
Maternal Fetal Exchange is best promoted by which maternal position?
Either Rt or Lt Lateral
What is transfer down the concentration gradient from higher to lower called?
Diffusion
The most likely physical rationale for recurrent late decels after epidural is?
Maternal Sympathetic Blockade
Which FHR pattern would be anticipated when monitoring mono-mono twins?
Variable Decels
Fetus can survive in an environment w/ a PO2 equal to adult venous blood d/t?
increased O2 carrying capacity
Variable decels are mediated primarily by?
baroreceptors
The sympathetic branch of the ANS influences FHR to?
increase
the average difference in baseline FHR b/w 30 & 40 weeks is?
10bpm
usually 5-6; 10 is closest
Fetal blood is most highly oxygenated in the?
Ductus Venosous
An abrupt rise in fetal bp can stimulate?
variable decels
During an acute episode of fetal hypoxemia, fetal blood flow is redistributed
primarily to the?
brain
Over the course of pregnancy, the FHR baseline?
decreases
FHR variability is dependent upon?
cerebral oxygen and intact CNS
chemoreceptors respond mainly to?
hypoxemia
pH: 7.22
pCO2: 50
HCO3: 24
BE: -3
normal acid-base status
(if pH is normal, answer is normal)
Fetal respiratory academia is indicated by a pH of 7.04 and a PCO2 of?
>60
