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Immue System Flashcards

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164635466ImmunityIs the body's ability to protect itself from foreign agents or organisms.0
164635467Autoimmune disordersWhere the body identifies its own cells as foreign and activates mechanisms to destroy them.1
164635468Organs of the immune systemclassified as peripheral and primary lymphoid organs2
164635469Bone marrow and thymus glandprimary lypmhoid organs3
164635470Lymph nodes, spleen, tonsils, appendix, peyer's patches of the small intestine, and the liverperipheral lymphoid organs4
164635471histaminea substance released during allergis reactions, and heparin. basophils secrete this.5
164635472humoral immunityb-cells responsible for this; antibody-mediated defenses.6
164635473antibodiesproteins that react with antigens to neutralize or destroy them.7
164635474antigensany substance identified by the body as nonself.8
164635475IgA, IgD, IgE, IgG, and IgAcommon antibodies found in plasma.9
164635476t-cellsresponsible for cellular immunity, a type of acquired immunity involving t-cell lymphocytes.10
164635477natural and acquiredtwo types of immunity11
164635478natural immunityborn with it, and is species specific.12
164635479acquired immunitydevelops after birth, and may be active or passive.13
164635480active acquired immunitythe result of exposure to the disease of the vaccine.14
164635481passive acquired immunityutilizes antibodies produced by another human being or animal. injection of these immunoglobulins temporarily prevents development of the disease after exposure. example: transmission of antibodies through fetal circulation.15
164635482immune responsebody's reaction to substances identified as nonself, neutralization of antigen.16
164635483Factors that influence immune responseage, sex, nutritional status, stress, and treatment modalities.17
164635484hypersensitivityexcessive reaction to a stimulus18
164635485allergic disordersthe result of hypersensitivity of the immune system to allergens.19
164635486allergensa type of antigen commonly found in the environment.20
164635487inhales, injected, ingested, or contactedfour ways to acquire an allergen21
164635488type I allergic reactionimmediately upon exposure to a specific antigen. causes vasodilation, enhanced capillary permeability, and bronchoconstriction.22
164635489allergic rhinitis, urticaria, and angioedema.most common type I reactions23
164635490most severe type I allergic reactionanaphylaxis24
164635491urticariahives. raised pruritic, red, nontender wheals on the skin.25
164635492angioedemaedema of the subcutaneous layers and mucous membranes, painless and only slightly pruritic.26
164675765type II allergis reactionsthe destruction of cells or subatances with antigens attached that either immunoglobulin G or immunoglobulin M senses as being foreign.27
164675766hemolytic transfusion reactionstype II allergic reaction28
164675767type III allergic reactionsinvolves IgG immune antigen-antibody complexes. local reaction after several hours.29
164675768type IV allergic reactionsdelayed reaction involving sensitized t-lymphocytes coming in contact with the allergen. examples: contact dermatitis and transplant rejections.30
164675769immunotherapytreatment to suppress or enhance immunological functioning.31
164675770anaphylaxisa type of type I systemic reaction to allergend and is the most serious type of allergic reaction. it occurs in individuals who are extremely sensitive to an allergen.32
164675771symptoms of anaphylaxisdevelop suddenly and can progress to severe levels within minutes. peripheral tingling, flushing, fullness in mouth, throat/nasal congestion, tearing and swelling around eyes, itching, cough, laryngeal edema, bronchospasms, severe dyspnea, vasodilation, and cyanosis.33
164675772allogeneicblood products that are from a donor of the same species, may develop a transfusion reaction.34
164675773autologousarranging to have their own blood collected, saved, and available for infusion, if needed, during or following elective surgeries.35
164675774five types of transfusion reactionsfebrile nonhemolytic, allergic urticarial, delayed hemolytic, acute hemolytic, and anaphylactic.36
164675775febrile hemolyticmost common and occurs in clients who have had previous blood transfusions as a result of an antibody-antigen reaction to wbc's. symptoms may develop soon or up to 5-6 hrs after completion of the blood transfusion.37
164675776delayed hemolyticmay occur days to weeks following the transfusion. the clients hemoglobin level falls because of incompatibility of rbs antigens. often is misdiagnosed.38
164675777acute hemolyticpotentially a life threatening situation. symptoms resulting from the incompatibility of ABO groups usually occur during the first 15 minutes of administration.39
164675778latex allergyproteins enter the body through the skin and mucous membranes, intravascularly, and by inhalation. exposure can cause red, watery, itchy eyes, sinus or nasal irritation, hives, shortness of breath, dry cough, wheezing, chest tightness, flushing, tachycardia, and hypotension.40
164694393rheumatoid arthritisa chronic, systemic autoimmune disease characterized by joint stiffness. onset usually between 30-50 yrs of age. cause is unknown. causes inflammation, swelling, and increased synovial fluid.41
164694394remissiondecrease or absence of symptoms42
164694395exacerbationincrease in symptoms43
164694396SLEsystemic lupus erythematosus. a chronic progressive incurable autoimmune disease affecting multiple body organs. characterized by a butterfly rash on face and periods of exacerbation and remission. most commonly in women of childbearing years.44
164694397cause of SLEb-lymphocytes produce autoantibodies that destroy body cells. immune complexes are formed and circulate in serum, causing inflammation and tissue damage in the skin, brain, kidney, lung, heart, or joints.45
164694398myasthenia gravisan autoimmune disease characterized by extreme muscle weakness and fatigue caused by the body's inability to transmit nerve impulses to voluntary muscles.46
164694399three possible complications of myasthenia gravisrespiratory distress, myasthenic crisis, and cholinergic crisis.47
164694400tensilon testused to differentiate between myasthenic crisis and cholinergic crisis.48
164698865three main ways to treat allergic rhinitissudafed, benadryl, and prednisone49
164698866sudafedis a decongestant/stimulant and is not to be used in patients with HTN, and CAD.50
164698867prednisonecorticosteroid that suppresses the immune system51
164698868killer cellspunch holes in antigen, type of t cell52
164698869helper cellscalls in more b & t cells53
164698870suppressor cellssuppresses b & t cells from coming in when we have enough54
164698871memory cellsmemorizes antigen and recognizes it.55
164698872reverse isolationqprotecting patient from others56
164698873isolationprotecting others from the patient57
164698874intervention for myasthenia gravisdecrease sodium, increase potassium, activities vary by person. plasmaoheresis if acute crisis. and thymectomy only in young people.58

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