Advanced
MonitoringFetal Heart
(FHM) Course|
Latest
2026, Exam Answers:
Exams of Health 2025-
sciences|Graded
Pass A+ Certified
What category rules out fetal acidemia? - ANSWERS-Cat 1
What maternal conditions greatly impact fetal oxygenation? - ANSWERS-Severe
astha, cardiac issues, and ecclampic seizures
Where does the exchange of O2 and nutrients take place? - ANSWERS-intervillous
space
How is o2 blood transferred to the fetus? - ANSWERS-O2 enters the intervillous
space via the maternal arteries, to the villi then the umbilical vein take the o2
blood to the fetus. The umbilical arteries take the deO2 blood from the baby
through the villi and back to the mother
Diffusion - ANSWERS-High to low concentration
Mom to fetus for O2
Low to high concentration for CO2 so baby to mom
How is O2 transferred from mom to baby - ANSWERS-Diffusion
Explain spiral arteries in placenta - ANSWERS-Carry O2 into intervillous space
Are maximally dilated so they can not be increased
What are factors that can decrease uteroplacental blood flow? - ANSWERS-
Maternal conditions like pre-e and cardiac disease
Maternal hypotension
Placental changes- abruptions, infections, edema, or smaller size
, Excessive uterine activity
Vasoconstriction
What happens to the spiral arteries during pre-e? - ANSWERS-They are constricted
which decreases blood flow
Why does the supine position cause decreased uteroplactenal blood flow? -
ANSWERS-The aorta and vena cava get compressed (20 weeks)
Why does maternal hypotension happen after regional analgesia? - ANSWERS-
Blocks the sympathetic pathway
Pooling of blood in the lower extremities decreases blood flow back to moms
heart which decreases blood flow to the fetus
What percentage is uteroplacental blood flow decreased by during cxts? -
ANSWERS-60%
Explain the pathway for maternal- fetal exchange for fetal oxygenation (basic) -
ANSWERS-Environment to lungs to heart to vasculature to uterus to placenta to
umbilical cord
Where is the least O2 blood in the fetus? - ANSWERS-Limbs, kidneys, and
descending aorta
Where is the most O2 blood in the fetus? - ANSWERS-Umbilical vein and ductous
venous
Connects the umbilical vein to the inferior vena cava, bypassing the liver
Shunt that allows most O2 blood to fetal heart - ANSWERS-Ductus venosus
3 important shunts in fetal circulation - ANSWERS-ductus venosus, foramen ovale,
MonitoringFetal Heart
(FHM) Course|
Latest
2026, Exam Answers:
Exams of Health 2025-
sciences|Graded
Pass A+ Certified
What category rules out fetal acidemia? - ANSWERS-Cat 1
What maternal conditions greatly impact fetal oxygenation? - ANSWERS-Severe
astha, cardiac issues, and ecclampic seizures
Where does the exchange of O2 and nutrients take place? - ANSWERS-intervillous
space
How is o2 blood transferred to the fetus? - ANSWERS-O2 enters the intervillous
space via the maternal arteries, to the villi then the umbilical vein take the o2
blood to the fetus. The umbilical arteries take the deO2 blood from the baby
through the villi and back to the mother
Diffusion - ANSWERS-High to low concentration
Mom to fetus for O2
Low to high concentration for CO2 so baby to mom
How is O2 transferred from mom to baby - ANSWERS-Diffusion
Explain spiral arteries in placenta - ANSWERS-Carry O2 into intervillous space
Are maximally dilated so they can not be increased
What are factors that can decrease uteroplacental blood flow? - ANSWERS-
Maternal conditions like pre-e and cardiac disease
Maternal hypotension
Placental changes- abruptions, infections, edema, or smaller size
, Excessive uterine activity
Vasoconstriction
What happens to the spiral arteries during pre-e? - ANSWERS-They are constricted
which decreases blood flow
Why does the supine position cause decreased uteroplactenal blood flow? -
ANSWERS-The aorta and vena cava get compressed (20 weeks)
Why does maternal hypotension happen after regional analgesia? - ANSWERS-
Blocks the sympathetic pathway
Pooling of blood in the lower extremities decreases blood flow back to moms
heart which decreases blood flow to the fetus
What percentage is uteroplacental blood flow decreased by during cxts? -
ANSWERS-60%
Explain the pathway for maternal- fetal exchange for fetal oxygenation (basic) -
ANSWERS-Environment to lungs to heart to vasculature to uterus to placenta to
umbilical cord
Where is the least O2 blood in the fetus? - ANSWERS-Limbs, kidneys, and
descending aorta
Where is the most O2 blood in the fetus? - ANSWERS-Umbilical vein and ductous
venous
Connects the umbilical vein to the inferior vena cava, bypassing the liver
Shunt that allows most O2 blood to fetal heart - ANSWERS-Ductus venosus
3 important shunts in fetal circulation - ANSWERS-ductus venosus, foramen ovale,
