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Nursing Chronic Obstructive Pulmonary Disease

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COPD is a condition which involves the respiratory system, thus the airway delivery system between inspiration of oxygen through the nose or mouth through to the alveoli and back again until exhalation occurs as a passive mechanism post inhalation. Therefore there are many structures and mechanisms involved with COPD. These will be discussed. In order to understand COPD, we as nurses must develop an understanding of the structural and functional changes in cells and tissues caused by infectious agents. COPD is characterised by chronic inflammation of the airways, including gas exchange surfaces and pulmonary blood vessels. The pathogenesis of COPD is quite complex and involves many mechanisms. The defining features of COPD are irreversible airflow limitation during forced exhalation and obstruction caused by mucous hypersecreation, mucosal oedema and bronchospasms. Respiration involves the exchange of oxygen from the environment for carbon dioxide from the body’s cells. On average we breathe 23,000 times per day. This however can be altered in someone experiencing COPD. Oxygen is taken up through the nose (this is the most effective passage) into the nasal cavity. Air that is inspired through the nose is filtered, allowing any irritants to be removed and cease to pass further into the airways. However, patients suffering from COPD are often mouth breathers, meaning they inspire their oxygen through their mouth where no filtration occurs. Consequently irritants such as

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