However, reality is quite different. In our health system, spirometry is a technique that is largely unknown in primary care centers. In an urban area that depends on our teaching hospital for health care, there are 24 primary care centers attending a population of 700,000 inhabitants. Previous studies2 have demonstrated a COPD prevalence of 9% among people 35 to 60 years of age in our country, of whom 78% are unaware that they have the disease. Despite this situation, only 18 centers have spirometry equipment, 3 of which do not perform spirometry at all. The remaining centers perform an average of two spirometry procedures per week. It is evident that, as a result, there is a loss of motivation to perform spirometry and a loss of sensitivity in using this useful and necessary diagnostic tool on the part of the GP.