Essentials of Pathophysiology 3rd Edition Porth Test Bank
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Below you will find some free nursing test bank questions from this test bank:
|1.||Innate immunity, also called natural or native immunity, consists of mechanisms that respond specifically to:|
|2.||Adaptive immune responses, also called acquired or specific immunity, are composed of _____________ and their products.|
|3.||The effector cells of the immune system have the primary function of:|
|A)||activating phagocytic cells.|
|B)||eliminating the antigens.|
|C)||processing antigen into epitopes.|
|D)||controlling the immune response.|
|4.||Activation of lymphocytes is dependent upon the ________ and ________ of the antigens by macrophages.|
|5.||Major histocompatibility complex (MHC) molecules, with human leukocyte antigens (HLAs), are markers on all nucleated cells and have an important role in:|
|A)||identifying blood types.|
|B)||cell membrane transport.|
|C)||suppressing viral replication.|
|D)||avoiding transplant rejections.|
|6.||Dendritic cells, found in skin tissues and lymphoid tissues, are important for:|
|A)||initiation of adaptive immunity.|
|C)||disposal of dead cells.|
|7.||Once T helper cells are activated, they secrete ____________ that activate and regulate nearly all of the other cells of the immune system.|
|8.||The first circulating immunoglobulin to appear in response to a new antigen is:|
|9.||The effector function of activated members of the complement system includes all of the following EXCEPT:|
|10.||During the latent period before antibodies are detected in the humoral immune response, B cells differentiate into ________ cells.|
|11.||Which of the following would participate in the innate immune response to an infectious microorganism?|
|12.||A patient has recently received a pneumococcal vaccine and the patient’s B cells are consequently producing antibodies. Which of the following cells may enhance this production of antibodies?|
|A)||Helper T cells|
|B)||Regulatory T cells|
|C)||Cytotoxic T cells|
|D)||Natural killer cells|
|13.||A child’s thymus gland is fully formed and proportionately larger than an adult’s. Which of the following processes that contribute to immunity takes place in the thymus gland?|
|A)||Differentiation of B cells|
|B)||Production of natural killer (NK) cells|
|C)||Proliferation of T cells|
|D)||Filtration of antigens from the blood|
|14.||A patient’s exposure to an antibiotic-resistant microorganism while in the hospital has initiated an immune response, a process that is mediated and regulated by cytokines. Which of the following statements is true of cytokines?|
|A)||They are stored in the peripheral lymphoid tissues until required.|
|B)||They have a long half-life that contributes to an ongoing immune response.|
|C)||They are normally released at cell-to-cell interfaces, binding to specific receptors.|
|D)||They are capable of performing phagocytosis in the response to viral invasion.|
|15.||The entrance of a microbe into an individual’s vascular space has initiated opsonization. Which of the following processes is involved in opsonization?|
|A)||Stimulation of B cells by helper T cells|
|B)||Coating of a microbe to aid phagocyte recognition|
|C)||Release of proteins that stimulate cell production by the bone marrow|
|D)||Lysis of intracellular microbes by cytotoxic T cells|
|16.||Bacteria on a sliver in a boy’s finger have initiated an adaptive immune response. The boy’s lymphocytes and antibodies recognize immunologically active sites on the bacterial surfaces known as:|
|17.||Histocompatability molecules are of primary importance to which of the following aspects of immunity?|
|A)||Induction of T-cell immunity|
|C)||NK cell activation|
|D)||Phagocytosis by neutrophils|
|18.||Prior to leaving on a backpacking trip to Southeast Asia, a college student has received a tetanus booster shot. This immunization confers protection by way of what immune process?|
|A)||Secondary humoral response|
|B)||Cell-mediated immune response|
|C)||Primary humoral response|
|19.||A patient’s cell-mediated immune response has resulted in the release of regulator T cells. These cells will perform which of the following roles?|
|A)||Suppressing the immune response to limit proliferation of potentially harmful lymphocytes|
|B)||Presenting antigens to B cells to facilitate the production of antibodies|
|C)||Differentiating into subpopulations of helper T cells|
|D)||Destroying target cells by releasing cytolytic enzymes and other toxins|
|20.||A 1-day-old infant was exposed to an infectious microorganism prior to discharge home from the hospital, but was able to effect a sufficient immune response in the hours and days following exposure. This immune response may have been due to the presence of which of the following immunoglobulins from the infant’s mother?|