1. Case Studies: A terrible collision between a trailer truck and a bus has occurred on Route 91. Several of the passengers are rushed to area hospitals for treatment. We will follow a few of these people in clinical case studies that will continue through the book from one organ system to the next. 2. Chapter 5 Examination of Mrs. DeStephano, a 45-year-old woman, reveals several impairements of homeostasis. Relative to her integumentary system, the following comments are noted on her chart: - epidermal abrasions of the right arm and shoulder - severe lacerations of the right cheek and temple - cyanosis apparent: The lacerated areas are cleaned, sutured (stitched), and bandaged by the emergency room (ER) personnel, and Mrs. DeStephano is admitted for further tests. 3. 1. What protective mechanisms are impaired or deficient in the abraded areas?: The skin separates and protects the internal environment of the body from potentially dangerous elements in the external environment. Mrs. DeStephano's chart indicates epidermal abrasions, which represent the loss of this barrier. Epidermal loss will also
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