CCI ECHO EXAM 200+ QUESTIONS AND CORRECT ANSWERS REAL EXAM QUESTIONS AND CORRECT
ANSWERS
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
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
,CCI ECHO EXAM 200+ QUESTIONS AND CORRECT ANSWERS REAL EXAM QUESTIONS AND CORRECT
ANSWERS
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
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?
a) coronary sinus
b) chiari network
c) eustachian valve
d) ligamentum arteriosum - (answer) ligamentum arteriosum
,CCI ECHO EXAM 200+ QUESTIONS AND CORRECT ANSWERS REAL EXAM QUESTIONS AND CORRECT
ANSWERS
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
2) AV node
3) Bundle of His
4) Left bundle branch
5) Purkinje fibers
Which of the following structures is the primary pacemaker of the heart?
a) Bundle of His
b) Purkinje fibers
c) AV node
d) SA node - (answer) SA node
During the resting state, which of the following ions are pumped out of the cells of the myocardium?
a) sodium
b) potassium
c) iodine
, CCI ECHO EXAM 200+ QUESTIONS AND CORRECT ANSWERS REAL EXAM QUESTIONS AND CORRECT
ANSWERS
d) magnesium - (answer) sodium
Following electrical depolarization of the myocardial cell membrane, which ion rushes in first, and which
ion rushes in later?
a) potassium followed by sodium
b) sodium followed by calcium
c) calcium followed by potassium
d) potassium followed by calcium - (answer) sodium followed by calcium
Which of the following ions helps slow heart muscle contraction?
a) sodium
b) potassium
c) calcium
d) magnesium - (answer) potassium
In the cardiac cell action potential, what phases are included in the absolute refractory period?
a) phases 1 into phase 3
b) phases 2 thru 4
c) phase 1 only
d) phase 2 to the middle of phase 3 - (answer) phases 1 into phase 3
When contracting against which of the following pressures will the velocity of muscle cell contraction be
most rapid?
a) 75 mmHg
b) 100 mmHg
c) 125 mmHg
d) 150 mmHg - (answer) 75mmHg
What happens to the beat following a premature ventricular depolarization?
ANSWERS
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
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
,CCI ECHO EXAM 200+ QUESTIONS AND CORRECT ANSWERS REAL EXAM QUESTIONS AND CORRECT
ANSWERS
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
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?
a) coronary sinus
b) chiari network
c) eustachian valve
d) ligamentum arteriosum - (answer) ligamentum arteriosum
,CCI ECHO EXAM 200+ QUESTIONS AND CORRECT ANSWERS REAL EXAM QUESTIONS AND CORRECT
ANSWERS
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
2) AV node
3) Bundle of His
4) Left bundle branch
5) Purkinje fibers
Which of the following structures is the primary pacemaker of the heart?
a) Bundle of His
b) Purkinje fibers
c) AV node
d) SA node - (answer) SA node
During the resting state, which of the following ions are pumped out of the cells of the myocardium?
a) sodium
b) potassium
c) iodine
, CCI ECHO EXAM 200+ QUESTIONS AND CORRECT ANSWERS REAL EXAM QUESTIONS AND CORRECT
ANSWERS
d) magnesium - (answer) sodium
Following electrical depolarization of the myocardial cell membrane, which ion rushes in first, and which
ion rushes in later?
a) potassium followed by sodium
b) sodium followed by calcium
c) calcium followed by potassium
d) potassium followed by calcium - (answer) sodium followed by calcium
Which of the following ions helps slow heart muscle contraction?
a) sodium
b) potassium
c) calcium
d) magnesium - (answer) potassium
In the cardiac cell action potential, what phases are included in the absolute refractory period?
a) phases 1 into phase 3
b) phases 2 thru 4
c) phase 1 only
d) phase 2 to the middle of phase 3 - (answer) phases 1 into phase 3
When contracting against which of the following pressures will the velocity of muscle cell contraction be
most rapid?
a) 75 mmHg
b) 100 mmHg
c) 125 mmHg
d) 150 mmHg - (answer) 75mmHg
What happens to the beat following a premature ventricular depolarization?
