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NCC EFM Cert. Exam| 52 QUESTIONS| WITH COMPLETE SOLUTIONS

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Ductus venosus connects ______ to ______? Correct Answer: Umb. vein to IVC Foramen ovale connects _______to______? Correct Answer: R. atrium to L. atrium Ductus arteriosus connects _______ to _______? Correct Answer: Pulm. artery to aorta Normal rate Correct Answer: 110 to 160 BPM Average baseline rate at 15wks gestation Correct Answer: 160 BPM Average rate in fetus with heart block Correct Answer: 60 BPM (intrinsic ventricular or nodal rate) Sympathetic effects Correct Answer: 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 Correct Answer: ~ 32wks Primary indicator of fetal oxygenation Correct Answer: Presence or absence of variability Location of chemoreceptors Correct Answer: aortic arch Chemoreceptors respond to? Correct Answer: Changes in O2 and CO2 Location of baroreceptors Correct Answer: Aortic arch and carotid bodies Maximal reactivity occurs when? Correct Answer: Late at night Max duration of fetal nonreactivity? Correct Answer: 80min Sensitivity Correct Answer: Probablity of detecting a true positive Specificity Correct Answer: Probability that true negative will be detected False positive Correct Answer: erroneosly positive when reality is negative False negative Correct Answer: erroneously negative when reality is positive NST Correct Answer: Two 15x15 accels in 20min (up to 40min) % of false positive CSTs? Correct Answer: ~ 30%

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NCC EFM Cert. Exam| 52 QUESTIONS| WITH
COMPLETE SOLUTIONS
Ductus venosus connects ______ to ______? Correct Answer: Umb. vein to IVC

Foramen ovale connects _______to______? Correct Answer: R. atrium to L. atrium

Ductus arteriosus connects _______ to _______? Correct Answer: Pulm. artery to aorta

Normal rate Correct Answer: 110 to 160 BPM

Average baseline rate at 15wks gestation Correct Answer: 160 BPM

Average rate in fetus with heart block Correct Answer: 60 BPM (intrinsic ventricular or nodal
rate)

Sympathetic effects Correct Answer: 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 Correct Answer: ~ 32wks

Primary indicator of fetal oxygenation Correct Answer: Presence or absence of variability

Location of chemoreceptors Correct Answer: aortic arch

Chemoreceptors respond to? Correct Answer: Changes in O2 and CO2

Location of baroreceptors Correct Answer: Aortic arch and carotid bodies

Maximal reactivity occurs when? Correct Answer: Late at night

Max duration of fetal nonreactivity? Correct Answer: 80min

Sensitivity Correct Answer: Probablity of detecting a true positive

Specificity Correct Answer: Probability that true negative will be detected

False positive Correct Answer: erroneosly positive when reality is negative

False negative Correct Answer: erroneously negative when reality is positive

NST Correct Answer: Two 15x15 accels in 20min (up to 40min)

% of false positive CSTs? Correct Answer: ~ 30%

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