NCC EFM Cert. Exam Questions and Correct Answers (Complete Solution) Graded A

NCC EFM Cert. Exam Questions and Correct Answers (Complete Solution) Graded A Normal rate 110 to 160 BPM Average baseline rate at 15wks gestation 160 BPM Average rate in fetus with heart block 60 BPM (intrinsic ventricular or nodal rate) Sympathetic effects Incr. HR, constricted peripheral and visceral blood vessels, vital organs dilate and receive more blood Gest. age at which autonomic nervous system is fully developed ~ 32wks Primary indicator of fetal oxygenation Presence or absence of variability Location of chemoreceptors aortic arch Chemoreceptors respond to? Changes in O2 and CO2 Location of baroreceptors Aortic arch and carotid bodies Maximal reactivity occurs when? Late at night Max duration of fetal nonreactivity? 80min Sensitivity Probablity of detecting a true positive Specificity Probability that true negative will be detected False positive erroneosly positive when reality is negative False negative erroneously negative when reality is pos