Practice Quiz

CMC Cardiac Medicine Certification

Category - CMC

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Which of the following malformation is present in transposition of the great arteries (TGA)?
  1. Aorta arising from left ventricle and pulmonary artery from right ventricle but crossing over each other abnormally
  2. Both aorta and pulmonary artery arising from right ventricle
  3. Both aorta and pulmonary artery arising from left ventricle
  4. Aorta arising anteriorly from the right ventricle and the pulmonary artery arising posteriorly from the left ventricle
Explanation
Answer- D - The malformation present in transposition of the great arteries (TGA) is characterized by the aorta arising anteriorly from the right ventricle and the pulmonary artery arising posteriorly from the left ventricle. Gestational diabetes mellitus of an expectant mother is a risk factor that has been described for the fetus having TGA.
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