AWHONN ADVANCED FETAL MONITORING EXAM
LATEST 2023-2024 ACTUAL EXAM 130 QUESTIONS
AND CORRECT DETAILED ANSWERS WITH
RATIONALES (VERIFIED ANSWERS) |ALREADY
GRADED A+
What happens to the spiral arteries during pre-e?
They are constricted which decreases blood flow
Why does the supine position cause decreased uteroplactenal blood
flow?
The aorta and vena cava get compressed (20 weeks)
Why does maternal hypotension happen after regional analgesia?
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?
60%
Explain the pathway for maternal- fetal exchange for fetal oxygenation
(basic)
Environment to lungs to heart to vasculature to uterus to placenta to
umbilical cord
Where is the least O2 blood in the fetus?
Limbs, kidneys, and descending aorta
Where is the most O2 blood in the fetus?
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
Ductus venosus
3 important shunts in fetal circulation
ductus venosus, foramen ovale, ductus arteriosus
connects the two atria in the fetal heart
Allows O2 blood to flow through the heart and directly to the brain
Foramen Ovale
a blood vessel in a fetus that bypasses pulmonary circulation by
connecting the pulmonary artery directly to the ascending aorta
Ductus Arteriosus
, What is a normal blood volume for a fetus at term?
80-100 mL/kg
What happens if you stimulate the sympathetic nervous system?
Increased heart rate
What does the parasympathetic nervous system do?
Regulates the sympathetic
What happens when catecholamines (sympathetic) get released?
Increased heart rate
Why do pre-termers have increased heart rates?
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