Pathophysiology Final Exam Study Guide
|2025/2026 | Complete Questions With
Complete Solutions 100% Accurate
Already Graded A+ -- Just Released.
1. The gradual increase in height among the human
population over the past 100 years is an example of:
A) polygenic trait.
B) multifactorial trait.
C) crossing over.
D) recombination. - ANSWER ✓ b
2. What is the effect of repeated exposure to an allergen in
an atopic individual?
A) The allergic response gets worse.
B) Antibody production is suppressed.
C) Antibody formation remains constant.
D) Tc cell activity increases significantly. -
ANSWER ✓ a
,3. Desensitization therapy improves allergies by which of
the following mechanisms?
A) Producing antibodies that prevent the allergen
from binding to IgE
B) Decreasing the amount of IgE in the body
C) Decreasing the amount of antigen in the
bloodstream
D) Decreasing the responsiveness of the bronchi
and blood vessels to histamine - ANSWER ✓ a
4. Which of the following features is characteristic of a
type IV hypersensitivity?
A) Antibody-dependent cell-mediated toxicity
B) Delayed response
C) Usually life-threatening
D) Mediated by the complement system -
ANSWER ✓ b
5. Type IV hypersensitivities, such as poison ivy reactions,
are initiated by:
A) B cells that release IgD 24 to 48 hours after
exposure.
, B) the release of neutrophil chemotactic factor.
C) the stimulation of cytotoxic T cells.
D) the release of large quantities of IgE. -
ANSWER ✓ c
6. What type of reaction occurs when the body mounts an
aggressive response against an organ transplanted from
another person?
A) Type I hypersensitivity
B) Autoimmune
C) Alloimmune
D) Immunosuppressive - ANSWER ✓ c
7. Autoimmunity can result from all of the following
hypersensitivities except:
A) type I.
B) type II.
C) type III.
D) type IV. - ANSWER ✓ a
8. Manifestations of the autoimmune disease SLE include:
A) wheezing, eczema, and itching.
, B) pulmonary edema, leg swelling, and vein
distention.
C) arthritic joint pain, pleuritic chest pain, and
rash.
D) nasal polyps, headache, and rhinorrhea. -
ANSWER ✓ c
9. A person with type O blood has which of the following
antigens present on their red blood cells?
A) A and B
B) Rh
C) O
D) None of the above - ANSWER ✓ d
10. Transfusion of A-negative blood to an O-positive
individual will have which of the following results?
A) Improved red blood cell count
B) Clumping and lysis of red blood cells
C) Production of anti-B antibodies
D) An Rh incompatibility reaction - ANSWER ✓ b
|2025/2026 | Complete Questions With
Complete Solutions 100% Accurate
Already Graded A+ -- Just Released.
1. The gradual increase in height among the human
population over the past 100 years is an example of:
A) polygenic trait.
B) multifactorial trait.
C) crossing over.
D) recombination. - ANSWER ✓ b
2. What is the effect of repeated exposure to an allergen in
an atopic individual?
A) The allergic response gets worse.
B) Antibody production is suppressed.
C) Antibody formation remains constant.
D) Tc cell activity increases significantly. -
ANSWER ✓ a
,3. Desensitization therapy improves allergies by which of
the following mechanisms?
A) Producing antibodies that prevent the allergen
from binding to IgE
B) Decreasing the amount of IgE in the body
C) Decreasing the amount of antigen in the
bloodstream
D) Decreasing the responsiveness of the bronchi
and blood vessels to histamine - ANSWER ✓ a
4. Which of the following features is characteristic of a
type IV hypersensitivity?
A) Antibody-dependent cell-mediated toxicity
B) Delayed response
C) Usually life-threatening
D) Mediated by the complement system -
ANSWER ✓ b
5. Type IV hypersensitivities, such as poison ivy reactions,
are initiated by:
A) B cells that release IgD 24 to 48 hours after
exposure.
, B) the release of neutrophil chemotactic factor.
C) the stimulation of cytotoxic T cells.
D) the release of large quantities of IgE. -
ANSWER ✓ c
6. What type of reaction occurs when the body mounts an
aggressive response against an organ transplanted from
another person?
A) Type I hypersensitivity
B) Autoimmune
C) Alloimmune
D) Immunosuppressive - ANSWER ✓ c
7. Autoimmunity can result from all of the following
hypersensitivities except:
A) type I.
B) type II.
C) type III.
D) type IV. - ANSWER ✓ a
8. Manifestations of the autoimmune disease SLE include:
A) wheezing, eczema, and itching.
, B) pulmonary edema, leg swelling, and vein
distention.
C) arthritic joint pain, pleuritic chest pain, and
rash.
D) nasal polyps, headache, and rhinorrhea. -
ANSWER ✓ c
9. A person with type O blood has which of the following
antigens present on their red blood cells?
A) A and B
B) Rh
C) O
D) None of the above - ANSWER ✓ d
10. Transfusion of A-negative blood to an O-positive
individual will have which of the following results?
A) Improved red blood cell count
B) Clumping and lysis of red blood cells
C) Production of anti-B antibodies
D) An Rh incompatibility reaction - ANSWER ✓ b
