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NCC EFM EXAM PRACTICE QUESTIONS AND CORRECT ANSWERS 100% VERIFIED!!
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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 EitherRt 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? - ANSWERMaternal Sympathetic Blockade
Which FHR pattern would be anticipated when monitoring mono-mono twins? - ANSWERVariable 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 During an acute episode of fetal hypoxemia, fetal blood flow is redistributed primarily tothe? - 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. pCO2: 50HCO3: 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 > pH: 6. PCO2: 49HCO3: 16 BE:-16 - ANSWER metabolic acidemia
during 1st stage of labor for women w/complications, EFM should be reviewed every? -ANSWER 15 min.
during 2nd stage labor for women requiring oxytocin, EFM should be reviewed every? -ANSWER 5 min.
in any 10 minute sequence of FHR tracing, minimum baseline duration must be at least?- ANSWER 2 min.
if baseline FHR is indeterminate, refer to prior? - ANSWER 10 min. window Baseline FHR variability is classified as? - ANSWER absent, minimal, moderate, marked primary goal in treatment of late decels? - ANSWER maximize uteroplacentel blood flow Rationale for low dose oxytocin protocol? - ANSWER half-life of oxytocin Initiate treatment for recurrent late decels w/ moderate variability during 1st stage? -ANSWER maternal repositioning
FHR pattern likely to develop w/ severe fetal anemia? - ANSWER sinusoidal most consistent clinical sign of uterine rupture during tolac? - ANSWER recurrentdecels of bradycardia
loss of FHR variability can result from? - ANSWER medication administration IV stadol may result in? - ANSWER transient sinusoidal (pseudosinusoidal)
When using a doppler to determine FHR, autocorrelation: - ANSWER comparessuccessive reflective US waveforms at many points
Sustained SVT increases fetal risk for: - ANSWER CHF (hydrops) toco detects changes in? - ANSWER the shape of the uterine wall fetoscope works by detecting? - ANSWER sound of opening/closing of heart valves short r-to-r intervals in fetal egg is indicative of? - ANSWER tachycardia most common fetal arrhythmia? - ANSWER PAC Fetal hydrops may develop w? - ANSWER paroxysmal atrial tachy complete heart block increases fetal risk for? - ANSWER neonatal pacemaker reactive NST in term fetus requires? - ANSWER 2 access 15x15 w/I 20 min. in the BPP the chronic marker is? - ANSWER AFV most commonly cited source of adverse outcome during labor? - ANSWERcommunication failure