ADVANCED FETAL MONITORING LATEST ACTUAL
EXAM WITH VERIFIED QUESTIONS & CORRECT
ANSWERS
Question 1.
What category rules out fetal acidemia?
ANSWER
Cat 1
Question 2.
What maternal conditions greatly impact fetal oxygenation?
ANSWER
Severe astha, cardiac issues, and ecclampic seizures
Question 3.
Where does the exchange of O2 and nutrients take place?
ANSWER
intervillous space
Question 4.
How is o2 blood transferred to the fetus?
ANSWER
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
Question 5.
Diffusion
ANSWER
High to low concentration Mom to fetus for O2 Low to high concentration for CO2 so baby to mom
Question 6.
How is O2 transferred from mom to baby
ANSWER
Diffusion
1
,Question 7.
Explain spiral arteries in placenta
ANSWER
Carry O2 into intervillous space Are maximally dilated so they can not be increased
Question 8.
What are fac- tors that can decrease uteroflow?
ANSWER
Maternal conditions like pre-e and cardiac disease Maternal hypotension Placental changes-
abruptions, infections, edema, or smaller size Vasoconstriction
Question 9.
What happens to the spiral arteries during pre-e?
ANSWER
They are constricted which decreases blood flow
Question 10.
Why does the supine position cause decreased uteroplactenal blood flow?
ANSWER
The aorta and vena cava get compressed (20 weeks)
Question 11.
Why does maternal hypotension happen after regional analgesia?
ANSWER
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
Question 12.
What percentage is uteroplacental blood flow decreased by during cxts?
ANSWER
60%
Question 13.
Explain the pathway for maternal- fetal exchange for fetal oxygenation (basic)
ANSWER
Environment to lungs to heart to vasculature to uterus to placenta to umbilical cord
2
, Question 14.
O2 blood in the fetus?
ANSWER
Limbs, kidneys, and descending aorta
Question 15.
Where is the most O2 blood in the fetus?
ANSWER
Umbilical vein and ductous venous
Question 16.
Connects the umbilical vein to the inferior vena cava, bypassing the liver Shunt that allows
most O2 blood to fetal heart
ANSWER
Ductus venosus
Question 17.
3 important shunts in fetal circulation
ANSWER
ductus venosus, foramen ovale, ductus arteriosus
Question 18.
connects the two atria in the fetal heart Allows O2 blood to flow through the heart and directly
to the brain
ANSWER
Foramen Ovale
Question 19.
a blood vessel in a fetus that bypasses pulmonary cirnecting the pulmonary artery directly to
the ascending aorta
ANSWER
Ductus Arteriosus
Question 20.
What is a normal blood volume for a fetus at term?
ANSWER
80-100 mL/kg
3
EXAM WITH VERIFIED QUESTIONS & CORRECT
ANSWERS
Question 1.
What category rules out fetal acidemia?
ANSWER
Cat 1
Question 2.
What maternal conditions greatly impact fetal oxygenation?
ANSWER
Severe astha, cardiac issues, and ecclampic seizures
Question 3.
Where does the exchange of O2 and nutrients take place?
ANSWER
intervillous space
Question 4.
How is o2 blood transferred to the fetus?
ANSWER
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
Question 5.
Diffusion
ANSWER
High to low concentration Mom to fetus for O2 Low to high concentration for CO2 so baby to mom
Question 6.
How is O2 transferred from mom to baby
ANSWER
Diffusion
1
,Question 7.
Explain spiral arteries in placenta
ANSWER
Carry O2 into intervillous space Are maximally dilated so they can not be increased
Question 8.
What are fac- tors that can decrease uteroflow?
ANSWER
Maternal conditions like pre-e and cardiac disease Maternal hypotension Placental changes-
abruptions, infections, edema, or smaller size Vasoconstriction
Question 9.
What happens to the spiral arteries during pre-e?
ANSWER
They are constricted which decreases blood flow
Question 10.
Why does the supine position cause decreased uteroplactenal blood flow?
ANSWER
The aorta and vena cava get compressed (20 weeks)
Question 11.
Why does maternal hypotension happen after regional analgesia?
ANSWER
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
Question 12.
What percentage is uteroplacental blood flow decreased by during cxts?
ANSWER
60%
Question 13.
Explain the pathway for maternal- fetal exchange for fetal oxygenation (basic)
ANSWER
Environment to lungs to heart to vasculature to uterus to placenta to umbilical cord
2
, Question 14.
O2 blood in the fetus?
ANSWER
Limbs, kidneys, and descending aorta
Question 15.
Where is the most O2 blood in the fetus?
ANSWER
Umbilical vein and ductous venous
Question 16.
Connects the umbilical vein to the inferior vena cava, bypassing the liver Shunt that allows
most O2 blood to fetal heart
ANSWER
Ductus venosus
Question 17.
3 important shunts in fetal circulation
ANSWER
ductus venosus, foramen ovale, ductus arteriosus
Question 18.
connects the two atria in the fetal heart Allows O2 blood to flow through the heart and directly
to the brain
ANSWER
Foramen Ovale
Question 19.
a blood vessel in a fetus that bypasses pulmonary cirnecting the pulmonary artery directly to
the ascending aorta
ANSWER
Ductus Arteriosus
Question 20.
What is a normal blood volume for a fetus at term?
ANSWER
80-100 mL/kg
3
