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pathopharm final
| Question/Term | Answer/Definition |
|---|---|
| antigen | life threatening microbes |
| innate/natural immunity | 1st line of defense, non-specific, inflammatory response and phagocytosis (2nd line of defense) |
| adaptive (acquired) immunity | 3rd line of defense, T cells & B cells (antibodies) |
| neutrophils | infection-fighting agents; usually the first to arrive on the scene of the infection; phagocytize microorganisms |
| basophils | wbc that bind immunoglobulin E and release histamine in anaphylaxis |
| eosinophils | wbc involved in allergic reaction |
| monocytes | wbc that replenish macrophages and dendritic cells in normal states and respond to inflammation by migrating to infected tissue to become macrophages and dendritic cells |
| macrophages | wbc within tissues, produced by differentiation of monocytes; phagocytize and stimulate lymphocytes and other immune cells to respond to pathogens |
| mast cells | connective tissue cells that contain histamine, heparin, hyaluronic acid, slow-reacting substance of anaphylaxis, and serotonin |
| plasma cells | wbc that develop from B cells and produce large volumes of specific antibodies |
| T cells | produced in the bone marrow and mature in the thymus; include two major types that work to destroy antigens (regulator and effector) |
| killer T cells | T cells that destroy cells infected with viruses by releasing lymphokines that degrade cell walls |
| memory B cells | B cells that stimulate a quick response with subsequent exposures to an antigen |
| helper B ells | regulator cells that activate B cells to produce antibodies |
| NK lymphocytes | natural killer cells that destroy cancer cells, foreign cells, and virus-infected cells |
| complement | group of inactive proteins in the circulation that, when activated, stimulate the release of other chemical mediators, promoting inflammation, chemotaxis, and phagocytosis |
| histamine | released by mast cells and basophils, especially during allergic reactions, triggering the inflammatory response |
| kinins | induce vasodilation and contraction of smooth muscles |
| prostaglandins | a group of lipid compounds that have a variety of effects, including constriction or dilation of vascular smooth muscles cells, control of cell growth, and sensitization of spinal neurons to join |
| leukotrienes | fatty molecules of the immune system that contribute to contraction of bronchiolar smooth muscle |
| cytokines | small cell-signaling protein molecules that are extensively involved in intracellular communication |
| tumor necrosis factor (TNF) | group of cytokines that can cause cell death |
| chemotactic factors | attract phagocytes to the area of inflammation |
| phagocytosis by neutrophils | contain injury/infection, recruit immune response, begin healing |
| interferons | type of cytokine, protects against viral infections |
| 5 characteristics of a localized inflammation | heat, redness, pain, swelling, loss of function |
| fever | occurs due to cytokines released from neutrophils and macrophages |
| leukocytosis | inflammation stimulates proliferation/release of wbc precursors in bone marrow |
| labs associated with systemic inflammation | increased fibrinogen, increased erythrocyte sedimentation rate |
| chronic inflammation | lasts 2 weeks or longer; can be caused by foreign bodies, persistent pathogens, and autoimmune diseases |
| an injury to a vascularized tissue has occurred and activated an acute inflammatory response. what is true regarding this response? | it is nonspecific |
| antibodies | immunoglobulins, class of proteins, bind to specific antigens like lock and key and destroy them |
| cell-mediated immunity | targets are attacked directly by the immune system |
| humoral immunity | immune response mediated by antibodies |
| primary immune response | occurs when person is first exposed to antigen |
| secondary immune response | occurs with repeat exposure to antigen |
| IgG | most common antibody produced in primary and secondary immune response (mother is OG, fetus is little g) crosses placenta and creates passive immunity for neonate |
| IgM | bound to B lymphocytes in circulation; is the first to increased in the immune response (iMMediately) involved in ABO blood type incompatibility reaction |
| IgA | found in secretions like tears and saliva, in mucous membranes, GI tracts, breast milk bathes mucous membranes and protects them from microorganisms and toxins and also provides protection to neonates |
| IgE | binds to mast cells in skin and mucous membranes triggers allergic reaction response |
| IgD | found on surface of mature B cells serves as receptor for antigens, helps anchor cell membranes |
| natural active immunity | pathogens enter the body and cause illness, antibodies form (chickenpox) |
| artificial active immunity | live vaccine is injected into the body, antibodies form (measles vaccine) |
| natural passive immunity | antibodies are passed directly from mother to child to provide temporary protection (passage through placenta during pregnancy; consumption of breastmilk) |
| artificial passive immunity | antibodies are injected into the body to provide temporary protection or to minimize the severity of an infection (gamma globulin injection to treat immunological disease) |
| hypersensitivity | exaggerated or inappropriate immune response; occurs immediately or delayed |
| autoimmune | mistakes self as foreign |
| immunodeficiency | inadequate immune reaction |
| type I hypersensivity | allergic reactions, fast response |
| type II hypersensitivity | body cells directly attacked by antibodies like transfusion reactions and autoimmune diseases, immediate response |
| type III hypersensitivity | antibody complex accumulation followed by destruction like serum sickness, intermediate response |
| type IV hypersensitivity | cell mediated cytotoxicity like contact dermatitis, late/delayed response |
| antigens are molecules that react with components of the adaptive immune system. antigens that can initiate the adaptive immune response are called... | immunogens |
| an antibody, or immunoglobulin, is produced by plasma cells in response to a challenge by the immunogen. which class of antibodies is the first antibody produced during the primary response to antigen? | IgM |
| which type of hypersensitivity reaction involves tissue specific antigens? | type II |
| systemic lupus erythematosus (SLE) | chronic, multisystem inflammatory disease; progressive with remissions and flares |
| what type of disease is SLE? | autoimmunity |
| human immunodeficiency virus (HIV) | retrovirus; depletes the body's Th cells (CD4 cells); best predictor of prognosis is viral load |
| side effect | may develop soon after drug is initiated or not for weeks or months; may be expected and predictable; nearly unavoidable |
| adverse affect/adverse drug reactions (ADRs) | any harmful effect of a drug at a normal dose |
| toxicity | produced with excessive dosing |
| idiosyncratic effect | uncommon response |
| paradoxical effect | opposite of intended response |
| iatrogenic disease | drug-induced disease but resembles natural disease |
| physical dependence | long-term use of certain drugs |
| carcinogenic effect | can lead to cancer by damaging cell DNA |
| teratogenic effect | drug-induced birth defects |
| 5 rights | right patient, right drug, right dose, right time, right route |
| tall man letters | predniSONE vs predisoLONE |
| drug-drug interaction | can occur whenever a patient takes 2+ drugs |
| pharmacokinetic drug interactions (ADME) | altered absorption, distribution, metabolism, renal excretion |
| food-drug interactions | can occur when a patient eats a food that is incompatible with a drug |