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Kaplan Qbank USMLE



Author9 Posts
  #1

A 3-month-old infant develops cyanosis limited to the lower part of the body. Which of the following anomalies would most likely account for this peculiar clinical presentation?

A. Aortic coarctation, adult form

B. Aortic coarctation, infantile form

C. Isolated patent ductus arteriosus (PDA)

D. Pulmonary stenosis

E. Tetralogy of Fallot


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  #2

C .. Isolated PDA ??


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  #3

NO IN ISOLATED PDA ONE WILL NOT GET THAT UNTILL EISENMINGER DEVELOPS ANY THIS IS TOO EARLY FOR THAT.

IN INFANTILE AORTIC COARTATION, THERE WILL BE DIFF CYYANOSIS WITH ASSOCIATED PDA. WHERE IS THE OBSTUCTION .POST DUCTAL OR PREDUCTAL?

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  #4

IT IS PREDUCTAL

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  #5

My answer is B


  #6

it is b, infantile form of coarctation of aorta and as msyamp said it is preductal

  #7

postductal is seen in adults

preductal is also associated with turners syndrome


  #8

yes ans is B

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  #9

I agree with you guys







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