NCC EFM Certification Exam 2023/2024
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 gest...
NCC EFM Certification Exam
2023/2024
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
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