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Fetal Echocardiography (Actual) Exam
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Fetal Echocardiography (Actual) Exam
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Fetal Echocardiography (Actual) ExamAll of the following are true statements concerning events that occur after birth except
a) systemic pressure increases
b) pulmonary vascular resistance increases
c) right heart pressure decrease
d) foramen ovale closes - ANSWER-b) pulmonary vascular resistance increases
All of the following are true statements concerning fetal circulation except
a) fetal right ventricle is thicker than the fetal left ventricle
b) right heart handles a larger volume of blood than the left heart
c) pulmonary artery branches are underdeveloped at birth
d) blood enters the systemic circulation only at the ductus arteriosus level - ANSWER-d)
blood enters the systemic circulation only at the ductus arteriosus level
At 21-23 days, the heart tube is connected to the _______ at the cephalic end and the
_______ at the caudal end of the embryo
a) primitive atrium/primitive ventricle
b) bulbus cordis/sinus venosus
c) pharyngeal arch arteries/sinus venosus
d) sinus venosus/truncus arteriosus - ANSWER-c) pharyngeal arch arteries/sinus
venosus
Before birth pulmonary vascular resistance is greater than systemic resistance because
the
a) ductus arteriosus is closed
b) inflation of the lungs has not occurred
c) pulmonary artery is open
d) pulmonary veins are open - ANSWER-b) inflation of the lungs has not occurred
Blood flow in the heart tube is directed
a) anterior
b) posteriorly
c) cephalad
d) caudad - ANSWER-c) cephalad
Deoxygenated blood from the fetal heart returns to the maternal placentavia the
a) umbilical artery
b) umbilical vein
c) maternal placenta
d) fetal aorta - ANSWER-a) umbilical artery
During atrial septation, perforations develop deptum primum resulting in
a) ostium primum
b) foramen ovale
, c) bulbar ventricular formen
d) foramen secundum - ANSWER-d) foramen secundum
During D-looping, the primitive atria and sinus venosus moves ____________ -
ANSWER-superior and posterior
How large is the aortic arch compared to the ascending and descending aorta?
a) about the same size
b) 1/3 larger
c) 1/3 smaller
d) 1/2 smaller - ANSWER-a) about the same size
In a normal fetal heart, which cardiac chamber is closest to the spine?
a) right atrium
b) right ventricle
c) left atrium
d) left ventricle - ANSWER-c) left atrium
In a normal fetal heart, which cardiac chamber is the most anterior?
a) right atrium
b) right ventricle
c) left atrium
d) left ventricle - ANSWER-b) right ventricle
In a normal fetal heart, which cardiac chamber is the most superior?
a) SVC
b) aorta
c) mitral valve
d) main pulmonary artery - ANSWER-aorta
In dextrocardia, the heart loops ______ - ANSWER-anterior and leftward
In primitive cardiovascular system, which vessels return blood from the yolk sac?
a) vitelline veins
b) cardinal veins
c) umbilical veins
d) coronary veins - ANSWER-a) vitelline veins
In the fetal heart, fetal blood at the atrial level is shunted right to left via the
a) foramen ovale
b) ductus arteriosus
c) ligamentum venosum
d) ductus venosus - ANSWER-a) foramen ovale
In the three vessel view...
a) all vessels should be the same size
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