NURS 5315 Immunity Exam Questions & Answers 2026/2027 | 70+ Questions | Innate & Adaptive Immunity, Antibodies, T & B Cells, Hypersensitivity & Immunosuppression

This NURS 5315 Immunity Exam 2026/2027 study guide contains 70+ exam questions with correct answers across 26 pages, providing comprehensive review of innate and adaptive immunity, humoral and cell-mediated responses, immunoglobulins, antigen-presenting cells, complement proteins, T and B lymphocytes, antibody mechanisms, active and passive immunity, neonatal immunity, immunosenescence, hypersensitivity reactions, immunosuppression, nutrition, stress, and cancer-related immune dysfunction. The document uses multiple-choice questions with clearly identified answers and is presented as already graded A+, making it suitable for active recall, self-testing, and focused NURS 5315 exam preparation. The uploaded resource identifies NURS 5315 Immunity and the 2026/2027 academic period, but no university name appears in the document; therefore, an institution cannot be accurately included in the title. A major section establishes the differences between innate and adaptive immunity. The document characterizes innate immunity as present at birth, nonspecific, and capable of providing an immediate response, whereas adaptive immunity is acquired, highly specific, and capable of developing immunological memory. Students review skin and mucous membranes as first-line defenses, neutrophils, natural killer cells, pattern-recognition receptors, inflammatory responses, dendritic cells, and complement proteins. The questions also examine antigen-presenting cells and their role in presenting antigens to T lymphocytes and initiating adaptive immune responses. The guide provides extensive coverage of immunoglobulins and antibody-mediated immunity. Students review IgM as the first antibody produced during an immune response and as an effective activator of complement, IgG in long-term immunity and immune memory, IgE in allergic reactions and defense against parasites, and IgA in mucosal immunity. Antibody structure is reviewed as a Y-shaped molecule consisting of two heavy and two light chains. The material connects these immunoglobulins with their major immune functions and locations, helping students distinguish antibody classes in exam-style scenarios. Another substantial section examines T lymphocytes, B lymphocytes, and adaptive immune responses. The document identifies the thymus as the maturation site for T cells and bone marrow as the maturation site for B cells. T cells are associated primarily with cell-mediated immunity, while B cells are associated with humoral immunity and antibody production. Students review helper T cells, cytotoxic T cells, regulatory T cells, plasma cells, and memory cells. Regulatory T cells are presented as suppressing excessive immune responses, while cytotoxic T cells participate in eliminating infected cells and helper T cells stimulate B-cell antibody production. The clinical consequences of T-cell and B-cell dysfunction are also examined. Impaired T-cell function is associated in the source with compromised cell-mediated immunity and reduced defense against intracellular pathogens and cancer, including the example of HIV-related T-cell dysfunction. Impaired B-cell function is associated with decreased antibody production and reduced defense against extracellular pathogens. These questions help connect basic immunology with clinically relevant immune deficiencies and susceptibility to infection. The document explains several major mechanisms through which antibodies protect the body, including neutralization, opsonization, agglutination, and complement activation. Neutralization is described through antibody binding that blocks pathogens from attaching to host cells, while opsonization facilitates phagocytosis by marking pathogens for engulfment. Agglutination involves cross-linking antigens into clumps, and complement activation is presented as an indirect antibody effect. Complement proteins themselves are reviewed for their roles in enhancing phagocytosis and promoting inflammatory responses. Students also receive focused review of active versus passive immunity. Vaccination is used as an example of active immunity because the individual's immune system generates the response, whereas maternal antibodies transferred to an infant are presented as passive immunity. The guide emphasizes that adaptive immunity provides longer-term protection through formation of memory cells, which enable a stronger and faster response after subsequent exposure to the same pathogen. The neonatal and age-related immunity section examines passive maternal protection, newborn leukocyte function, breast-milk immunoglobulins, age-related thymic changes, declining T-cell production, and reduced T- and B-cell function in older adults. The source describes passive immunity in newborns as gradually decreasing over the first months of life and discusses immunosenescence and “inflammaging,” characterized in the document as chronic low-grade inflammation associated with aging. It further links age-related immune changes with decreased ability to combat new pathogens and infections and with exacerbation of some age-related diseases. Another important exam area is hypersensitivity. The resource identifies Type I hypersensitivity with immediate allergic reactions such as anaphylaxis and asthma, Type III hypersensitivity with immune-complex-associated conditions such as systemic lupus erythematosus, and Type IV hypersensitivity with T-cell-mediated tissue damage and cytokine release. These questions help students differentiate immune mechanisms underlying allergic and hypersensitivity disorders. The final portion addresses factors that can compromise immune function, including stress, nutritional deficiencies, aging, cancer, and immunosuppression. According to the document, stress can decrease circulating lymphocytes, zinc deficiency can impair immune responses and increase infection susceptibility, cancer can promote immune suppression through tumor-associated cytokines, and malnutrition can reduce the body's ability to respond effectively to infections. Immunosuppression is broadly characterized as weakening immune responses and consequently increasing susceptibility to infection. Relevant students: This resource is particularly relevant for NURS 5315 students, MSN students, graduate nursing students, Family Nurse Practitioner students, FNP students, Adult-Gerontology Nurse Practitioner students, APRN students, advanced pathophysiology students, immunology students, oncology nursing students, and nursing students preparing for examinations on immune function, antibodies, lymphocytes, hypersensitivity, immunosenescence, and immunodeficiency. Its multiple-choice structure is especially useful for rapid exam review, active recall, distinguishing immunoglobulin functions, and reinforcing relationships among immune cells, antibody mechanisms, and clinical immune dysfunction. Referenced academic source: McCance, K. L., & Huether, S. E. Pathophysiology: The Biologic Basis for Disease in Adults and Children. Elsevier. This established pathophysiology reference is relevant to the document's central areas, including innate and adaptive immunity, humoral and cell-mediated immune responses, immunoglobulins, lymphocyte function, hypersensitivity, immune deficiencies, aging-related immune changes, inflammation, and altered immunity associated with disease. Keywords: NURS 5315 Immunity Exam, NURS 5315 questions and answers, NURS , immunity exam questions, immunology nursing exam, advanced pathophysiology immunity, innate immunity, adaptive immunity, humoral immunity, cell mediated immunity, immune system questions, immunological memory, antigen presenting cells, APC immunity, pattern recognition receptors, PRR immunity, neutrophils, natural killer cells, NK cells, complement system, complement proteins, immunoglobulins, antibody classes, IgA, IgG, IgM, IgE, antibody structure, T lymphocytes, B lymphocytes, helper T cells, cytotoxic T cells, regulatory T cells, plasma cells, memory cells, antibody production, antibody neutralization, opsonization, agglutination, complement activation, active immunity, passive immunity, maternal antibodies, neonatal immunity, newborn immune system, immunosenescence, inflammaging, hypersensitivity reactions, Type I hypersensitivity, Type III hypersensitivity, Type IV hypersensitivity, anaphylaxis, systemic lupus erythematosus, immune suppression, immunosuppression, HIV immunity, stress and immunity, zinc deficiency immunity, malnutrition immunity, cancer immunosuppression, advanced nursing exam, MSN exam preparation