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 3 month old child presents with intermittent stridor. Most likely cause is - \nSelect and explain. \nA. Laryngotracheobronchitis, B. Laryngomalacia, C. Respiratory obstruction, D. Foreign body aspiration', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Laryngomalacia Larvngomalacia o Laryngomalacia is the most common congenital laryngeal anomaly. o It is the most common cause of stridor in infants and children. Symptoms appear in the first 2 weeks of life and increase in severity for upto 6 months. Typical presentation is inspiratory stridor which is exacerbated by any exeion (crying, agitation, feeding), supine position, and viral infection of U. Stridor is due to paial collapse of a flaccid supraglottic airway during inspiration.", 'role': 'assistant'}]