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NCC EFM Exam Practice Questions/quick and easy
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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. 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? - > pH: 6. PCO2: 49
during 1st stage of labor for women w/ no risk factors, efm should be reviewed every? - 30 min. during 1st stage of labor for women w/complications, EFM should be reviewed every? - 15 min. during 2nd stage labor for women requiring oxytocin, EFM should be reviewed every? - 5 min. in any 10 minute sequence of FHR tracing, minimum baseline duration must be at least? - 2 min. if baseline FHR is indeterminate, refer to prior? - 10 min. window Baseline FHR variability is classified as? - absent, minimal, moderate, marked primary goal in treatment of late decels? - maximize uteroplacentel blood flow Rationale for low dose oxytocin protocol? - half-life of oxytocin Initiate treatment for recurrent late decels w/ moderate variability during 1st stage? - maternal repositioning FHR pattern likely to develop w/ severe fetal anemia? - sinusoidal
most consistent clinical sign of uterine rupture during tolac? - recurrent decels of bradycardia loss of FHR variability can result from? - medication administration IV stadol may result in? - transient sinusoidal (pseudosinusoidal) When using a doppler to determine FHR, autocorrelation: - compares successive reflective US waveforms at many points Sustained SVT increases fetal risk for: - CHF (hydrops) toco detects changes in? - the shape of the uterine wall fetoscope works by detecting? - sound of opening/closing of heart valves short r-to-r intervals in fetal egg is indicative of? - tachycardia most common fetal arrhythmia? - PAC Fetal hydrops may develop w? - paroxysmal atrial tachy complete heart block increases fetal risk for? - neonatal pacemaker reactive NST in term fetus requires? - 2 access 15x15 w/I 20 min.
