1. Ductus venosus connects to ?: Umb. vein to IVC
2. Foramen ovale connects to ?: R. atrium to L. atrium
3. Ductus arteriosus connects to ?: Pulm. artery to aorta
4. Normal rate: 110 to 160 BPM
5. Average baseline ra
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1. Ductus venosus connects to ?: Umb. vein to IVC
2. Foramen ovale connects to ?: R. atrium to L. atrium
3. Ductus arteriosus connects to ?: Pulm. artery to aorta
4. Normal rate: 110 to 160 BPM
5. Average baseline rate at 15wks gestation: 160 BPM
6. Average rate in fetus with heart block: 60 BPM (intrinsic ventricular or nodal rate)
7. Sympathetic effects: Incr. HR, constricted peripheral and visceral blood ves- sels, vital organs dilate and receive more blood
8. Gest. age at which autonomic nervous system is fully developed: ~ 32wks
9. Primary indicator of fetal oxygenation: Presence or absence of variability
10. Location of chemoreceptors: aortic arch
11. Chemoreceptors respond to?: Changes in O2 and CO2
12. Location of baroreceptors: Aortic arch and carotid bodies
13. Maximal reactivity occurs when?: Late at night
14. Max duration of fetal nonreactivity?: 80min
15. Sensitivity: Probablity of detecting a true positive
16. Specificity: Probability that true negative will be detected
17. False positive: erroneosly positive when reality is negative
18. False negative: erroneously negative when reality is positive
19. NST: Two 15x15 accels in 20min (up to 40min)
20. % of false positive CSTs?: ~ 30%
21. BPP components: 1) Fetal breathing movements
2) Gross body movements
3) Fetal tone
4) Reactive fetal heart rate
5) Qualitiative amniotic fluid volume
22. BPP Score of 10: Normal
23. BPP Score of 8: Nl infant, low risk of chronic asphyxia
24. BPP Score of 6: Borderline result - rpt in 24hrs
25. BPP Score of 4: Suspect chronic asphyxia
26. BPP Score of 0
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