Name: ____________________________________________ Pathophysiology Unit III Exam Review 1. Define: homeostasis pathophysiology pathogenesis acute disease chronic disease exogenous endogenous neoplasm metabolic disease congenital disease trauma manifestation auscultation palpation percussion olfaction etiology idiopathic iatrogenic communicable disease epidemic endemic Localized disease systemic disease asymptomatic self-limiting disease naturally acquired immunity passive immunity phagocytosis pathogens acute inflammation carbuncles & furuncle abscess empyema decubitus ulcer cellulitis abscess gangrene inflammation serous transudate, serous exudate, purulent exudate dialysis diabetic coma insulin shock hemodialysis peritoneal dialysis 2. 3. 4. What happens when homeostasis is not maintained? disease will ensue What is the difference between anatomical pathology and clinical pathology? Anatomic: pathologist performs autopsies to determine cause of death Clinical: pathologist who reviews lab specimens to determine evidence of an abnormal tissue or the presence of chemicals What are the sequence in which an even leads from the cause of a disease to structural and functional abnormalities? (1-4 sequence) I. Cause (exposure and inoculation of the cold virus) II. Incubation time (virus multiplies) III. Manifestation (host begins to have signs & symptoms) IV. Recovery (body returns to previous state of health) Structural disease is: physical and biochemical changes within the cells (exogenous / endogenous), hallmark characteristic is a lesion Functional Disease is: onset without presence of lesion, basic change is physiological, examples: tension headache, mental illness 5. What are predisposing factors for a disease? (List and explain the 8 we discussed.) Age, sex, genetic makeup, stress, lifestyle, occupation, preexisting illness, environmental exposure 6. The difference between sign and symptom. Sign: physical observation noted by the person examining patient Symptoms: patient’s awareness of abnormalities or discomfort, not measurable and are subjective 7. Understand the types of artificially acquired immunity Vaccines: Live organism – nonvirulent for humans or treated in lab to weaken to make nonpathogenic Attenuated – organism that is weakened Killed – vaccine with toxoid occurs when the toxin produced by an organism is altered with heat or chemicals to render it harmless, but still allows body to make antibodies against it. 8. Purpose of inflammation? Goal of inflammation? Limiting factor? (Can inflammation occur at a site of gangrene?) Purpose- to contain or destroy offending agent Goal- to set stage for wound healing and repair by removing cellular debris from area Limiting factor- cannot occur if there is not a blood supply (ex: infected with gangrene) 9. The three major events in the inflammatory process. I. Congestion phase II. Leakage phase III. Phagocytosis process 10. Differentiate between the two types of tissue repair: regeneration & fibrous connective. Regeneration: replacement of dead tissue with new tissue, looks brand new Fibrous connective tissue: tissue that has undergone necrosis is replaced with dense, tough mass of connective tissue (scar) 11. What is the point of an artificial kidney? Explain the three ways molecules move: diffusion, osmosis, & filtration. Device used to separate large particles, such as blood cells, from small ones, such as urea/waste when the kidney cannot diffusion: movement of molecules from higher to low concentration osmosis: allows water to move through selectively permeable membrane from high to low concentration filtration: removes particles by allowing liquid to pass through membrane, controlled by gravity or hydrostatic pressure 12. What are the parameters that affect kidney function? Blood pressure, blood volume, hormones, caffeine, trauma, nutritional status, disease 13. Difference between Type I diabetes & Type II diabetes. Symptoms of diabetes. Type I: insulin dependent, rapid onset, juvenile, hereditary predisposition, viral destruction of beta cells, body lacks ability to produce insulin, uses insulin injections. Type II: non-insulin dependent, slow onset, adult/maturity, obesity causes beta cells to overreact and they become less responsive decreasing insulin secretion, treat with diet or oral replacements Symptoms: polydipsia, polyuria, glycosuria,