AKT-5729
A patient of yours with COPD who is in his 60s wants to travel to Spain on holiday. He plans to fly, but is prepared to drive and take the ferry if you tell him that he is not fit to do so.
You currently manage his COPD with a high dose seretide inhaler and PRN salbutamol. On examination at the surgery he looks relatively well. He has good bilateral air entry on auscultation of his chest and sparse bilateral wheeze.
How far should he be able to walk without shortness of breath to be able to fly?