A baby has a single palmar crease, a flat facial profile and hypotonia. Which cardiac defect is most common in this condition?

Answer and explanation

Correct answer: B. Atrioventricular septal defect

  1. Step 1: AV septal defects are especially associated with Down syndrome.
Answer
Atrioventricular septal defect.
Why not the others: Tetralogy of Fallot, Coarctation of the aorta and Transposition of the great arteries do not fit this picture as well.

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