PAT 20A/B Study Guide - Final Guide: Lower Respiratory Tract Infection, Viral Disease, Chronic Obstructive Pulmonary Disease
21 Jan 2017
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Document Summary
Inflammation of parenchymal structures of the lungs alveoli & bronchioles. Pneumonia is more likely to result when defence mechanisms become incompetent or are overwhelmed by the infectious agent. The typical pneumonia syndrome is usually caused by most common pathogen in. But can also be caused by other pathogens (e. g. h. influenza) Severity of symptoms depends on the extent of pneumonia present: Partial or full lobe lobular pneumonia. Caused by viral and mycoplasma infections involve the alveolar septum and the interstitium of the lung. Produce less striking symptoms and physical findings than bacterial pneumonia. Result from infection by bacteria: worse than atypical (viral infections) pneumonia. They multiply extracellularly in the alveoli and cause: inflammation + exudation of fluid into the air-filled spaces of the alveoli frequently in older adults and people with debilitating illnesses. Factors that predispose to colonization of the lower airways. Damage to the ciliated endothelium that lines the respiratory tract. Risk factors favouring colonization of the tracheobronchial tree.
