NCC EFM Exam Practice Questions and Answers 2022 Update Oxygen is transferred from mom to fetus via the placenta through? Correct anwser- Passive (Simple) Diffusion Intervillous space perfusion is dependent on? Correct anwser- Adequate Uterine Blood Flow Maternal Fetal Exchange is best promoted by which maternal position? Correct anwser- Either Rt or Lt Lateral What is transfer down the concentration gradient from higher to lower called? Correct anwser- Diffusion The most likely physical rationale for recurrent late decels after epidural is? Correct anwser- Maternal Sympathetic Blockade Which FHR pattern would be anticipated when monitoring mono-mono twins? Correct anwser- Variable Decels Fetus can survive in an environment w/ a PO2 equal to adult venous blood d/t? Correct anwser- increased O2 carrying capacity Variable decels are mediated primarily by? Correct anwser- baroreceptors The sympathetic branch of the ANS influences FHR to? Correct anwser- increase the average difference in baseline FHR b/w 30 & 40 weeks is? Correct anwser- 10bpm usually 5-6; 10 is closest Fetal blood is most highly oxygenated in the? Correct anwser- Ductus Venosous An abrupt rise in fetal bp can stimulate? Correct anwser- variable decels During an acute episode of fetal hypoxemia, fetal blood flow is redistributed primarily to the? Correct anwser- brain Over the course of pregnancy, the FHR baseline? Correct anwser- decreases FHR variability is dependent upon? Correct anwser- cerebral oxygen and intact CNS
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