Nursing 1- Study guide exam 2
Chapter 5- Inflammation and Infection Inflammation is a nonspecific cellular response to tissue injury. The primary signs of inflammation and infection are as follows: • Redness (erythema) results from increased blood flow to the area. • Heat results from increased blood flow and metabolism in the area. • Pain results from increased pressure on pain sensors in the area. • Swelling (edema, a detectable accumulation of increased interstitial fluid) results from fluid and leukocytes entering the tissues from the circulatory system. • Loss of function results from both pain and swelling and is the body’s way of resting the injured part. • Pus (purulent exudate), resulting from infection, is a secretion made up of white blood cells, dead cells, bacteria, and other debris
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