How Are COPD Stages Classified |
Dr. Javier Perez-Fernandez, Critical Care and Pulmonary Medicine Physician with Baptist Hospital and West Kendall Baptist Hospital, explains Chronic Obstructive Pulmonary Disease (COPD) can be classified depending on the inflammation and the destruction of the alveoli.
He says most people start having symptoms of COPD after exposing themselves to the causal agent for about 15 to 20 years, but for some people it may be earlier or take longer.