CCI Echo Questions and Answers

CCI Echo Questions and 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 Ans- 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 Ans- truncus arteriosus The sinus venous forms all of the followi ng EXCEPT: a) coronary sinus b) pulmonary arteries c) right atrium d) inferior vena cava Ans- pulmonary arteries The trunks arterioles forms all of the following EXCEPT: a) pulmonary veins b) carotid artery c) pulmonary arteries d) ductus arteriosus Ans- 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 Ans- 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 Ans- 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 oval e b) ductus arteriosus c) aorta d) pulmonary veins Ans- 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 Ans- left atrial pressure decreases The fetal ductus arteriosus closes soon after birth? What structure does it become? a) coronary sinus b) chiari network