NCC EFM Cert complete exam review
Ductus venosus connects ______ to ______? - Umb. vein to IVC
Foramen ovale connects _______to______? - R. atrium to L. atrium
Ductus arteriosus connects _______ to _______? - Pulm. artery to aorta
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 positive
NST - Two 15x15 accels in 20min (up to 40min)
% of false positive CSTs? - ~ 30%
BPP components - 1) Fetal breathing movements
2) Gross body movements
3) Fetal tone
Ductus venosus connects ______ to ______? - Umb. vein to IVC
Foramen ovale connects _______to______? - R. atrium to L. atrium
Ductus arteriosus connects _______ to _______? - Pulm. artery to aorta
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 positive
NST - Two 15x15 accels in 20min (up to 40min)
% of false positive CSTs? - ~ 30%
BPP components - 1) Fetal breathing movements
2) Gross body movements
3) Fetal tone
