Tyson has consulted you occasionally in the past, mainly for asthma. You are aware he is a keen and talented basketball player.

Tyson tells you he is planning to travel to Seattle (USA) in 6 months' time with the local basketball association team. He has had asthma since he was a toddler. His parents thought it would be a good idea to have his asthma checked out since they have noticed him using his blue puffer more often recently.