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Respiratory Pathology

Respiratory Pathology - Respiratory Pathology Andrew...

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Respiratory Pathology Andrew Blitman Anatomy and Physiology Period 1 3/7/06 Respiratory Pathology Quiz 1.Pneumonia is an inflammation of the lung caused by bacterial or viral invasions. The disease usually occurs when the immune system is weakened, especially by lower temperatures and previous infections. The most common cause of pneumonia is the gram-positive bacterium Streptococcus pneumoniae (also called S. pneumoniae or pneumococcal pneumonia ). Although it was once believed to have caused 95% of pneumonia cases, it now seems more likely that only 30% can be attributed to S. pneumoniae. On the pneumonia patient X-rays, there was a greatly enlarged radiopaque area and an accentuated heart shadow. While the pleural fluid is still translucent, the diaphragm appears to blend in, like a large cloud, with the heart shadow. 2. The bacterium Myobacterium tuberculosis causes TB, a highly contagious respiratory disease. A typical tuberculosis patient displays radiopaque lesions or nodules on the surface of his or her lungs when seen on an X-ray. With proper treatment done for the
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