system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 40 years old man presents with a recurrent hemoptysis and purulent cough. X-ray was found to be normal. The next investigation done to aid in diagnosis is –
assistant
The correct answer is  If chest X-ray is normal in a patient with recurrent hemoptysis, next investigation of choice is Bronchoscopy.