micr 12 – Flashcard
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Which of the following could result in a Type II Hypersensitivity?
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Both A and B
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The symptoms of an immune complex reaction are due to ______.
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complement fixation
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What is the hallmark of a conjugated vaccine?
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These vaccines contain weakly antigenic elements plus a more potent antigenic polysaccharide.
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Which of the following may result from systemic anaphylaxis?
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Shock
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When a person has previously been vaccinated against a viral pathogen, which cells are activated if that same pathogen re-enters the host's cells months or years later?
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Memory cells
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A healthy immune system destroys cancer cells with ____.
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NOT T Helper cells
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What type of vaccine involves host synthesis of viral antigens?
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Nucleic acid vaccine
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All of the following are considered examples of type I hypersensitivity except _____.
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NOT penicillin allergic reactions
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Treatment with certain drugs to reduce transplant rejection can cause ____.
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Immunosuppression
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Inhalation of an allergen often results in _____.
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NOT systemic anaphylaxis
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An antigenic protein from B. pertussis, the causative agent for whooping cough, is an example of a(n) ____ vaccine.
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NOT attenuated whole-agent
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Type IV Hypersensitivity is associated with _______.
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all of the above
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When exposure to tetanus is suspected, the treatment involves injections of Human Tetanus Immunoglobulin. What does this do?
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NOT It stimulates the immune response in order to provide lasting protection against tetanus.
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Which of the following is not an advantage of live attenuated vaccine?
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NOT They elicit lifelong immunity.
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Hypersensitivity is due to _______.
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NOT immunity
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What could a vaccine contain?
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Weakened or killed pathogen or parts of a pathogen
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Which antibodies will be in the serum of a person with blood type B, Rh+?
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NOT anti-A, anti-Rh
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A positive tuberculin skin test is an example of _____.
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delayed cell-mediated immunity
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Why is cyclosporine the preferred drug to suppress the immune system?
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NOT It does not completely suppress the B and T cell responses, only enough to prevent a negative immune response.
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All of the following are true of hypersensitivity except ______.
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NOT it requires previous exposure to an antigen
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All of the following are considered examples of type I hypersensitivity except _____.
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transplant rejections
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The process of desensitization to prevent allergies involves the injection of increasing amounts of _____.
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NOT IgE
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Which of the following utilizes a combination of monoclonal antitumor antibody and immunotoxin?
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Immunotherapy
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Which antibodies will be in the serum of a person with blood type B, Rh+?
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NOT anti-B
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Toxoid vaccines such as the vaccines against diphtheria and tetanus elicit a(n) ______.
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Antibody response against these bacterial toxins
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All of the following are generally used in active vaccinations except _______.
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antibodies
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All of the following are true of hypersensitivity except ______.
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NOT it is synonymous with allergy
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Allergic contact dermatitis is due to ______.
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sensitized T cells
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A healthy immune system destroys cancer cells with ____.
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CTLs
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Anaphylaxis is the term for reactions caused when certain antigens combine with ____.
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IgE antibodies
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All of the following lead to drug-induced thrombocytopenic purpura. Which occurs first?
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Drug binds to platelets.
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A patient shows the presence of antibodies against diphtheria toxin. Which of the following statements is FALSE?
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NOT The patient may have been vaccinated.
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Transplant rejection is an example of _____.
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NOT Type II hypersensitivity
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Immunodeficiencies are a result of all of the following except ____.
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autoimmune diseases
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What is the primary benefit of vaccination?
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An immune response will occur quicker upon future exposure to the pathogen.
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Hemolytic disease of the newborn can result from an _____.
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Rh- mother with an Rh+ fetus.
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An antigenic protein from B. pertussis, the causative agent for whooping cough, is an example of a(n) ____ vaccine.
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NOT inactivated whole-agent
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Inactivated tetanus toxin is a(n) ____.
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Toxoid vaccine
