NURS 5315 TEST 2 ELSEVIER QUESTIONS WITH ANSWERS 2023

NURS 5315 TEST 2 ELSEVIER QUESTIONS WITH ANSWERS 2023. Which complement factor is considered an anaphylatoxin? A. C3a Correct C3a, C5a, and C4a are anaphylatoxins. They can induce the rapid degranulation of mast cells and the release of histamine. B. C1 C. C7 D. C9 Awarded 1.0 points out of 1.0 possible points. 4. 4.ID: 98 Which receptor is expressed on macrophages and facilitates recognition and phagocytosis of bacterial pathogens? A. Complement receptors B. Scavenger receptors Correct The scavenger receptors are primarily expressed on macrophages and facilitate recognition and phagocytosis of bacterial pathogens. Complement receptors recognize a variety of fragments produced through activation of the complement system. Toll-like receptors are expressed on the surface of cells, including epithelial, mast, neutrophils, macrophages, dendritic cells, and lymphocytes. They recognize pathogen-associated molecular patterns or stressed host cells. Pattern recognition receptors recognize patterns of infectious molecules. These receptors are found on cells involved in innate resistance. C. Toll-like receptors D. Pattern recognition receptors Awarded 0.0 points out of 1.0 possible points. 5. 5.ID: 90 Which statement regarding mast cells is true? A. Histamine causes vasoconstriction. B. Mast cells are found only in blood vessels. C. Snake bites, bee venoms, and toxins may cause activation. Correct A number of things cause the activation of mast cells, including physical injury, chemical agents (including toxins, bee venom, and snake bites), immunologic means, and activation of an inflammatory response. Histamine is released from mast cells and causes vasodilation. Mast cells are found in loose connective tissue close to blood vessels. Mast cells are involved in initiating many allergic reactions. D. Mast cells are not involved in allergic reactions. Awarded 1.0 points out of 1.0 possible points. 6. 6.ID: 94 Which term describes an acidic sulfur-containing lipid that produces effects similar to histamine? A. Leukotriene Correct Leukotrienes act similar to histamine and cause smooth muscle contraction, increased vascular permeability, and chemotaxis. Prostaglandins cause increased vascular permeability, chemotaxis, and pain. Adhesion molecules increase the stickiness between cells. Phagocyte cells ingest and dispose of foreign material. B. Prostaglandin C. Adhesion molecule D. Phagocyte Awarded 0.0 points out of 1.0 possible points. 7. 7.ID: 76 Which statement is true regarding neutrophils? A. Neutrophils are agranular. B. Neutrophils are the predominant phagocytes of early