Increased PCO2 stimulates chemoreceptors to....
Slow FHR
Chemoreceptors cause what kind of decels?
- Late decelerations
- Prolonged decels coupled with hypoxemia
- Variable decels from umbilical cord occlusion coupled with hypoxemia
During times of stress, fetal compensatory response shunts blood away from less
vital organs and toward...
Brain, heart, adrenals
renin-angiontensin system
Regulates normal fetal circualtion by tonic vasoconstriction of the peripheral vascular
bed and protects fetus during hemorrhagic stress
RAS maintains
Systematic arterial BP and umbilical placental blood flow
Epi and norepinephrine increase...
FHR, strength of cardiac contractility, CO, BP
Prostaglandins maintains patency of....
Fetal ductus arteriosus
Prostaglandins regulate....
umbilical blood flow
Quiet sleep
- Quiescence (occasional/brief body movements)
- Absent REM
- FHR stable with narrow oscillation and bandwidth
Active sleep
- REM
- Frequent body movements
- FHR with wider oscillation bandwidth and frequent accels with movement
Quiet sleep effect of FHR