Introduction to Health Care Concepts
San Antonio College | RNSG 1128
Exam 3 - Fall 2026 | 100 questions
Name: Date:
Select the one best answer for each question..
1.A patient develops recurrent infections after starting medication to
prevent transplant rejection. Which interpretation best fits the source
material?
A.
Active natural immunity
B. Secondary immunodeficiency
C. Type IV hypersensitivity
D. Primary immunodeficiency
✓ Correct answer: B. Secondary immunodeficiency
Rationale: Secondary immunodeficiency develops when illness or treatment interferes with a
previously developed immune system. Transplant medications intentionally suppress immune
responses.
2.
A patient has a congenital problem involving development of immune cells.
Which category describes this problem?
A.
Secondary immunodeficiency
B. Artificial passive immunity
C. Primary immunodeficiency
D. Gammopathy
✓ Correct answer: C. Primary immunodeficiency
Rationale: Primary immune deficiencies result from improper development of immune cells
or tissues and are usually congenital or inherited.
3.Which finding most directly indicates that an immune response is misdirected
against self rather than simply inadequate?
A.
Immune-mediated damage to the patient's own tissues
B. Antibodies transferred through breast milk
C. A negative bacterial culture
D. Repeated infections after immunosuppressive treatment
✓ Correct answer: A. Immune-mediated damage to the patient's own tissues
Rationale: Autoimmunity occurs when the protective response attacks the body's own tissues,
causing damage.
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,RNSG 1128 | Exam 3 2026
4.
A patient asks why a vaccine differs from receiving immune globulin.
Which explanation is best?
A.
Immune globulin requires the recipient to manufacture the transferred antibodies
B. A vaccine stimulates the patient's own antibody production
C. A vaccine transfers antibodies produced by another person
D. Both methods provide only passive immunity
✓ Correct answer: B. A vaccine stimulates the patient's own antibody production
Rationale: Vaccination produces artificial active immunity; administered immunoglobulins
provide artificial passive immunity from an outside source.
5. Which example represents natural passive immunity?
A.
Immune globulin administered after exposure
B. Maternal antibodies transferred through breast milk
C. Antibodies produced after a live infection
D. Antibodies produced after vaccination
✓ Correct answer: B. Maternal antibodies transferred through breast milk
Rationale: Natural passive immunity includes maternal antibodies transferred through the
placenta or breast milk.
6. Which defense acts immediately and nonspecifically when organisms attempt
to enter the body?
A.
Antibodies specific to a previous vaccine
B. Intact skin and mucus barriers
C. A newly produced antigen-specific antibody response
D. Memory T-cell recognition of a previously encountered antigen
✓ Correct answer: B. Intact skin and mucus barriers
Rationale: Innate defenses include skin, mucus, stomach acid, inflammatory responses, and
phagocytic cells; they respond immediately without antigen specificity.
7. Which cell function belongs to the humoral immune response?
A.
T lymphocytes directly attack foreign invaders
B. Natural killer cells regulate sodium absorption
C. Neutrophils increase ventricular stretch
D. B lymphocytes produce antibodies
✓ Correct answer: D. B lymphocytes produce antibodies
Rationale: The source identifies B lymphocytes as the cells responsible for producing
antibodies in humoral immunity.
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8.A student describes a cell that remembers previous antigen contact and
responds on later exposure. Which cell is being described?
A.
Neutrophil
B. Platelet
C. Memory T cell
D. Suppressor T cell
✓ Correct answer: C. Memory T cell
Rationale: Memory T cells remember antigen contact and mount a response during subsequent
exposures.
9.Which cell is especially relevant when discussing destruction of virus-
infected cells and graft rejection?
A.
Suppressor T cell limiting the response
B. Red blood cell transporting oxygen
C. Cytotoxic T cell
D. B lymphocyte producing circulating antibodies
✓ Correct answer: C. Cytotoxic T cell
Rationale: Cytotoxic or killer T cells lyse virus-infected cells and play a role in graft rejection.
10. A nurse notes redness and warmth around a wound without fever or
chills. How should these findings be classified?
A.
Systemic infection findings
B. Local inflammatory findings
C. Evidence of passive immunity
D. Normal immunity attributes only
✓ Correct answer: B. Local inflammatory findings
Rationale: The blueprint lists warmth and redness as local signs, while fever and chills are
systemic findings.
11. Which cell is identified as the first to arrive at an inflammatory site?
A.
Neutrophil
B. B lymphocyte
C. Memory T cell
D. Erythrocyte
✓ Correct answer: A. Neutrophil
Rationale: The blueprint specifically identifies neutrophils as the first cells to arrive at the site of
inflammation.
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