NCC EFM Exam Practice Questions with
100% Correct Answers
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
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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
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)
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