Taking the Test: 1  Never leave an answer blank on a short answer or essay test. 2  If you arenât sure what an answer to a question is, skip it and come back to it later. 3  If you are really confused about a question, ask your professor for clarification.  After you answer a question, reread the question.
COPD is a type of obstructive lung disease in which chronic incompletely reversible poor airflow (airflow limitation) and inability to breathe out fully (air trapping) exist. The poor airflow is the result of breakdown of lung tissue (known as emphysema) and small airways disease (known as obstructive bronchiolitis).hronic obstructive pulmonary disease may occur in a number of other animals and may be caused by exposure to tobacco smoke. Most cases of the disease, however, are relatively mild. In horses it is also known as recurrent airway obstruction and is typically due to an allergic reaction to a fungus contained in straw.
Chronic obstructive pulmonary disease is an umbrella term that includes emphysema, chronic bronchitis, certain types of bronchiectasis, and sometimes asthma. Emphysema is usually the direct result of years of smoking cigarettes. It affects people who are middle-aged or elderly.