NURSING 3PA2 Lecture Notes - Lecture 34: Airway Obstruction, Metaplasia, Neutrophil
10 Apr 2018
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Age of onset occurs anytime often in childhood. Episodic wheeze with chest tightness, cough & dyspnea. Hx allergies & sinusitis rare, hx resp. infections. Fragile epithelium, thickening of basement membrane, mucus gland metaplasia & enlargement. Squamous metaplasia of epithelium, parenchymal destruction, mucus gland metaplasia & enlargement. Airflow limitation mechanisms: the foremost important mechanisms for airflow limitations are listed here, any of which can occur in either asthma or copd, loss of lung elastic recoil. Chronic bronchitis: people diagnosed with copd usually have some degree of both emphysema and chronic bronchitis. I am going to first discuss chronic bronchitis and emphysema separately in order to provide a clear description for each of these diseases. Inflammation of the airway epithelium: chronic bronchitis is the result of inflammation of the airway epithelium and mucus hypersecretion due to inspired irritants like tobacco, or air pollution o.
