MEDRADSC 1B03 Lecture Notes - Lecture 29: Lobar Pneumonia, Squamous Cell Carcinoma, Aspiration Pneumonia
3 Sep 2018
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Document Summary
May develop as a primary acute infection in the lungs or it may be secondary to another resp or systemic condition in which tissue resistance is reduced. Is a risk following any aspiration/inflammation in lungs , when fluids pool or defense mechanisms such as cilia are reduced. In most cases, organisms enter the lungs directly, by inhalation (virus), resident bacteria spreading along the mucosa, or aspiration in secretions; occasionally bloodborne. May be a virus, fungi, or bacterium. Pneumococcal pneumonia: less common bc antibacterial medications are quickly administered. Vaccines are used for protection against the 7 most common agents of pneumonia; is available for those w chronic resp or cardiovascular disease & ppl over 65 years old: anatomic location. Distribution of lesions may be diffuse & patchy throughout both lungs or lobar (1 lobe: pathophysiologic changes. In viral pneumonia, pathophysiologic changes occur primarily in the interstitial tissue or alveolar septae.
