This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
[{'content': 'A newborn has dribbling after feeds. He has respiratory distress and froths at the mouth. Diagnosis is – \nSelect and explain. \nA. Tracheoesophageal fistula, B. Tetralogy of fallot, C. Respiratory distress syndrome, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Tracheoesophageal fistula and esophageal atresia \n\nEsophageal atresia is the most common congenital anomaly of the esophagus.\nMore than 90% are associated with tracheoesophageal fistula.\nThe most common variety is the one where the upper part of esophagus ends blindly and the lower part is connected to trachea by a fistula.\nTEF should be suspected in all cases of hydramnios.\nThere may be associated anomalies → VACTERL (vertebral, anorectal, cardiac, tracheal, esophageal, renal, radial, limb) syndrome.\n\nPresentations\n\nFrothing and bubbling at the mouth and nose.\nCoughing, cyanosis and respiratory distress.\nFeeding exacerbates these symptoms, cause regurgitation, and may precipitate aspiration.\nAspiration of gastric contents via distal fistula can cause aspiration pneumonitis.', 'role': 'assistant'}]