NCC EFM Practice Exam Questions With Complete Solutions 2024.

EFM paper speed - Answer 3cm/ minute Ultra sound (EFM) - Answer US transducer detects motion through ultrahigh frequency sound waves - it determines FHR by auto correlation compares successive reflected ultra sound waveforms at many points FSE - Answer fetal scalp electrode (ISE) measures interval between R waves Value of EFM - Answer used as a screen test, not considered diagnostic - normal EFM tracing = grater than 99% chance fetus with not have neurologic injury Normal FHR pattern detects what? - Answer Intact CNS, oxygenation of the brainstem, ANS and intact heart sympathetic nervous system - Answer FHR regulation, develops 1st in the fetus. Release of norepinephrine/ epinephrine = increase in FHR parasympathetic nervous system - Answer FHR regulation Release acetylcholine = a decrease in FHR (vagal) *** responsible for producing variability as the fetus matures - variability requires a mature neuro system Baroreceptors - Answer stretch receptors - respond to changes in BP =