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CCI Echo Exam 2024 | CCI Echo Exam Latest 2024 Questions and Correct Answers Rated A+
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CCI Echo Exam 2024 | CCI Echo Exam Latest 2024 Questions and Correct Answers Rated A+
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CCI Echo Exam 2024 | CCI Echo ExamLatest 2024 Questions and Correct
Answers Rated 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
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
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
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
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?
a) the beat is weaker than a typical beat
b) the beat is shorter than a typical beat
c) the beat is similar to a typical beat
d) the beat is stronger than a typical beat -ANSWER-the beat is
stronger than a typical beat
What is the Frank-Starling Law?
a) the more heart muscle is stretched, the more forcefully it contracts
b) the more heart muscle is stretched, the faster it contracts
c)the less heart muscle is stretched, the more cardiac output is
generated
d) the higher the left atrial pressure, the slower cardiac muscle
contract -ANSWER-the more heart muscle is stretched, the more
forcefully it contracts
Which of the following best describes preload?
a) left ventricular emptying
b) LV filling
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