45-year-old presents with persistent productive cough and clubbing. On auscultation, wheeze and crackles are present. Which is the most specific investigation to confirm the diagnosis?

Name: 45-year-old presents with persistent productive cough and clubbing. On auscultation, wheeze and crackles are present. Which is the most specific investigation to confirm the diagnosis?
Creator: Medical MCQ
Published: 2024-04-17T08:49:23+05:30
Keywords: Medicine