28th August 2020

A 70-year-old man is finding it increasingly difficult to breath, especially on exertion

A 70-year-old man is finding it increasingly difficult to breath, especially on exertion. He is now only able to walk 100 metres before stopping to catch his breath; last year he could manage 500 metres and two years ago he could manage 700 metres. He also has a cough productive of yellow sputum, but he thinks he has had this for many years. He has smoked 20 cigarettes a day for the past 50 years. What is the most likely diagnosis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.