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Review Question - QID 214735

GI Embryology Pathology Jejunal, ileal, and colonic atresia QID: 214735 (M1.OMB.1)
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QID 214735 (Type "214735" in App Search)
A 1-day-old boy is evaluated in the newborn nursery for difficulty feeding. He was born at term to a G1P1 mother who had limited prenatal care. He had APGAR scores of 8 at 1 minute and 9 at 5 minutes. Shortly after birth, he started vomiting after feeding and has had 2 episodes of forceful vomiting since then. A nasogastric tube is placed, and barium visualization of the gastrointestinal tract is shown in Figure A. Which of the following is the most likely mechanism that caused this patient's findings?
  • A
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  • A