NCC EFM PRACTICE QUESTIONS AND ANSWERS 2025
Oxygen is transferred from mom to fetus via the placenta through? - (ANSWER)Passive (Simple)
Diffusion
Intervillous space perfusion is dependent on? - (ANSWER)Adequate Uterine Blood Flow
Maternal Fetal Exchange is best promoted by which maternal position? - (ANSWER)Either Rt or Lt Lateral
What is transfer down the concentration gradient from higher to lower called? - (ANSWER)Diffusion
The most likely physical rationale for recurrent late decels after epidural is? - (ANSWER)Maternal
Sympathetic Blockade
Which FHR pattern would be anticipated when monitoring mono-mono twins? - (ANSWER)Variable
Decels
Fetus can survive in an environment w/ a PO2 equal to adult venous blood d/t? - (ANSWER)increased O2
carrying capacity
Variable decels are mediated primarily by? - (ANSWER)baroreceptors
The sympathetic branch of the ANS influences FHR to? - (ANSWER)increase
the average difference in baseline FHR b/w 30 & 40 weeks is? - (ANSWER)10bpm
usually 5-6; 10 is closest
Fetal blood is most highly oxygenated in the? - (ANSWER)Ductus Venosous
An abrupt rise in fetal bp can stimulate? - (ANSWER)variable decels
, NCC EFM PRACTICE QUESTIONS AND ANSWERS 2025
During an acute episode of fetal hypoxemia, fetal blood flow is redistributed primarily to the? -
(ANSWER)brain
Over the course of pregnancy, the FHR baseline? - (ANSWER)decreases
FHR variability is dependent upon? - (ANSWER)cerebral oxygen and intact CNS
chemoreceptors respond mainly to? - (ANSWER)hypoxemia
pH: 7.22
pCO2: 50
HCO3: 24
BE: -3 - (ANSWER)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? - (ANSWER)>60
pH: 6.98
PCO2: 49
HCO3: 16
BE:-16 - (ANSWER)metabolic acidemia
pH: 7.04
pCO2: 80
HCO3: 22
BE: -4 - (ANSWER)respiratory acidemia
Oxygen is transferred from mom to fetus via the placenta through? - (ANSWER)Passive (Simple)
Diffusion
Intervillous space perfusion is dependent on? - (ANSWER)Adequate Uterine Blood Flow
Maternal Fetal Exchange is best promoted by which maternal position? - (ANSWER)Either Rt or Lt Lateral
What is transfer down the concentration gradient from higher to lower called? - (ANSWER)Diffusion
The most likely physical rationale for recurrent late decels after epidural is? - (ANSWER)Maternal
Sympathetic Blockade
Which FHR pattern would be anticipated when monitoring mono-mono twins? - (ANSWER)Variable
Decels
Fetus can survive in an environment w/ a PO2 equal to adult venous blood d/t? - (ANSWER)increased O2
carrying capacity
Variable decels are mediated primarily by? - (ANSWER)baroreceptors
The sympathetic branch of the ANS influences FHR to? - (ANSWER)increase
the average difference in baseline FHR b/w 30 & 40 weeks is? - (ANSWER)10bpm
usually 5-6; 10 is closest
Fetal blood is most highly oxygenated in the? - (ANSWER)Ductus Venosous
An abrupt rise in fetal bp can stimulate? - (ANSWER)variable decels
, NCC EFM PRACTICE QUESTIONS AND ANSWERS 2025
During an acute episode of fetal hypoxemia, fetal blood flow is redistributed primarily to the? -
(ANSWER)brain
Over the course of pregnancy, the FHR baseline? - (ANSWER)decreases
FHR variability is dependent upon? - (ANSWER)cerebral oxygen and intact CNS
chemoreceptors respond mainly to? - (ANSWER)hypoxemia
pH: 7.22
pCO2: 50
HCO3: 24
BE: -3 - (ANSWER)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? - (ANSWER)>60
pH: 6.98
PCO2: 49
HCO3: 16
BE:-16 - (ANSWER)metabolic acidemia
pH: 7.04
pCO2: 80
HCO3: 22
BE: -4 - (ANSWER)respiratory acidemia
