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CCI ECHO Question and Answers Latest Version
(2024/2025) Graded A+
At what time during fetal growth is the heart first fully developed?
a) 20 days
b) 30 days
c) 40 days
d) 50 days - (ANSWER)40 days
On the 30th day, the truncus normally divides. What anomaly occurs if the
truncus does not divide?
a) A-V canal
b) muscular VSD
c) transposition of the great vessels
d) truncus arteriosus - (ANSWER)truncus arteriosus
The sinus venous forms all of the following EXCEPT:
a) coronary sinus
b) pulmonary arteries
c) right atrium
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d) inferior vena cava - (ANSWER)pulmonary arteries
The trunks arterioles forms all of the following EXCEPT:
a) pulmonary veins
b) carotid artery
c) pulmonary arteries
d) ductus arteriosus - (ANSWER)pulmonary veins
What are the two right-to-left shunts in the normal fetal circulation?
a) ductus arterioles and primum ASD
b) VSD and ASD
c) foramen ovale and ductus arteriosus
d) foramen ovale and VSD - (ANSWER)foramen ovale and ductus arteriosus
Which of the following left-to-right shunts is the last to close in the normal post-
partum period? When does it close?
a) patent ductus arteriosus, closes in the 7th day
b) patent foramen ovale, closes in the 2nd day
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c) patent ductus arteriosus, closes in the 14th day
d) patent foramen ovale, close at the end of the first week - (ANSWER)patent
foramen ovale, close at the end of the first week
In the normal fetal circulation, which of the following has the least amount of the
flood flow?
a) patent foramen ovale
b) ductus arteriosus
c) aorta
d) pulmonary veins - (ANSWER)pulmonary veins
All of the following hemodynamic events occur post-delivery EXCEPT:
a) pulmonary artery blood flow increases
b) left atrial pressure decreases
c) pulmonary resistance decreases
d) foramen ovale flow decreases - (ANSWER)left atrial pressure decreases
The fetal ductus arteriosus closes soon after birth? What structure does it
become?
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a) coronary sinus
b) chiari network
c) eustachian valve
d) ligamentum arteriosum - (ANSWER)ligamentum arteriosum
The ductus arteriosus connects the pulmonary artery and aorta in the fetus. At
what site does the ductus attach to the aorta?
a) aortic isthmus
b) aortic root
c) sinus of Valsalva
d) A-V node - (ANSWER)aortic isthmus
The following five structures are activated during a single cardiac cycle. Rank
them in the normal order of activation:
a) Bundle of His
b) Purkinje fibers
c) AV node
d) SA node
e) Left bundle branch - (ANSWER)1) SA node
CCI ECHO Question and Answers Latest Version
(2024/2025) Graded A+
At what time during fetal growth is the heart first fully developed?
a) 20 days
b) 30 days
c) 40 days
d) 50 days - (ANSWER)40 days
On the 30th day, the truncus normally divides. What anomaly occurs if the
truncus does not divide?
a) A-V canal
b) muscular VSD
c) transposition of the great vessels
d) truncus arteriosus - (ANSWER)truncus arteriosus
The sinus venous forms all of the following EXCEPT:
a) coronary sinus
b) pulmonary arteries
c) right atrium
, 2
d) inferior vena cava - (ANSWER)pulmonary arteries
The trunks arterioles forms all of the following EXCEPT:
a) pulmonary veins
b) carotid artery
c) pulmonary arteries
d) ductus arteriosus - (ANSWER)pulmonary veins
What are the two right-to-left shunts in the normal fetal circulation?
a) ductus arterioles and primum ASD
b) VSD and ASD
c) foramen ovale and ductus arteriosus
d) foramen ovale and VSD - (ANSWER)foramen ovale and ductus arteriosus
Which of the following left-to-right shunts is the last to close in the normal post-
partum period? When does it close?
a) patent ductus arteriosus, closes in the 7th day
b) patent foramen ovale, closes in the 2nd day
, 3
c) patent ductus arteriosus, closes in the 14th day
d) patent foramen ovale, close at the end of the first week - (ANSWER)patent
foramen ovale, close at the end of the first week
In the normal fetal circulation, which of the following has the least amount of the
flood flow?
a) patent foramen ovale
b) ductus arteriosus
c) aorta
d) pulmonary veins - (ANSWER)pulmonary veins
All of the following hemodynamic events occur post-delivery EXCEPT:
a) pulmonary artery blood flow increases
b) left atrial pressure decreases
c) pulmonary resistance decreases
d) foramen ovale flow decreases - (ANSWER)left atrial pressure decreases
The fetal ductus arteriosus closes soon after birth? What structure does it
become?
, 4
a) coronary sinus
b) chiari network
c) eustachian valve
d) ligamentum arteriosum - (ANSWER)ligamentum arteriosum
The ductus arteriosus connects the pulmonary artery and aorta in the fetus. At
what site does the ductus attach to the aorta?
a) aortic isthmus
b) aortic root
c) sinus of Valsalva
d) A-V node - (ANSWER)aortic isthmus
The following five structures are activated during a single cardiac cycle. Rank
them in the normal order of activation:
a) Bundle of His
b) Purkinje fibers
c) AV node
d) SA node
e) Left bundle branch - (ANSWER)1) SA node
