MSFinals-5791

A 50-year-old man, with a history of chronic obstructive pulmonary disease (COPD), is admitted to hospital with sudden-onset shortness of breath. His oxygen saturation levels are 82%, respiratory rate (RR) 25 breaths/min (normal 12–18 breaths/min), his trachea is central, he has reduced breath sounds in the right lower zone. Chest X-ray reveals a 2.5 cm translucent border at the base of the right lung.
Given the likely diagnosis, what is the most appropriate management?