ADVANCED PATHOPHYSIOLOGY COMPLETE STUDY BUNDLE –
WEEKS 1–8 NOTES – NR 507 | QUESTIONS AND ANSWERS |
VERIFIED AND WELL DETAILED ANSWERS | PLUS RATIONALES |
GUARANTEED PASS | 2026/27 LATEST UPDATE | EXAM PREP |
STUDY GUIDE | PRACTICE TEST
SECTION ONE: QUESTIONS 1–50
1. A patient presents with tissue swelling after a bee sting. This response is mediated primarily by which
type of hypersensitivity reaction?
A. Type I
B. Type II
C. Type III
D. Type IV
Correct Answer: A. Type I
,Rationale: A bee sting causes an immediate hypersensitivity reaction (Type I) mediated by IgE antibodies
binding to mast cells, triggering histamine release and resulting in localized swelling, redness, and itching. Type
I reactions are IgE-mediated and occur within minutes of antigen exposure .
2. A 35-year-old woman with systemic lupus erythematosus (SLE) develops glomerulonephritis. This
manifestation is characteristic of which hypersensitivity reaction?
A. Type I
B. Type II
C. Type III
D. Type IV
Correct Answer: C. Type III
Rationale: SLE glomerulonephritis is a Type III hypersensitivity reaction involving immune complex deposition
(antigen-antibody complexes) in the glomerular basement membrane, leading to complement activation and
tissue damage. Type III reactions are immune-complex mediated .
3. Which of the following best describes the role of p53 in cancer development?
,A. It promotes cell division
B. It functions as a tumor suppressor gene
C. It activates oncogenes
D. It increases angiogenesis
Correct Answer: B. It functions as a tumor suppressor gene
Rationale: p53 is a tumor suppressor gene located on chromosome 17 that regulates the cell cycle and prevents
abnormal cell proliferation. It can initiate apoptosis in cells with damaged DNA, thereby preventing cancer
development .
4. A patient with tuberculosis develops granulomas in the lungs. The necrosis seen in these granulomas is
most likely:
A. Coagulative necrosis
B. Liquefactive necrosis
C. Caseous necrosis
D. Fat necrosis
Correct Answer: C. Caseous necrosis
, Rationale: Caseous necrosis is characteristic of tuberculosis and other granulomatous diseases. The necrotic
tissue has a cheese-like, white appearance due to the combination of coagulative and liquefactive necrosis .
5. Which of the following is a characteristic of malignant neoplasms?
A. Well-circumscribed borders
B. Slow growth
C. Invasion of surrounding tissues
D. Lack of metastasis
Correct Answer: C. Invasion of surrounding tissues
Rationale: Malignant neoplasms (cancers) are characterized by invasion of surrounding tissues and metastasis.
Benign tumors are well-circumscribed, grow slowly, and do not metastasize. Malignant cells are poorly
differentiated with a high mitotic index .
6. A patient experiences ischemia-reperfusion injury following a myocardial infarction. The primary
mechanism of injury in this condition is:
WEEKS 1–8 NOTES – NR 507 | QUESTIONS AND ANSWERS |
VERIFIED AND WELL DETAILED ANSWERS | PLUS RATIONALES |
GUARANTEED PASS | 2026/27 LATEST UPDATE | EXAM PREP |
STUDY GUIDE | PRACTICE TEST
SECTION ONE: QUESTIONS 1–50
1. A patient presents with tissue swelling after a bee sting. This response is mediated primarily by which
type of hypersensitivity reaction?
A. Type I
B. Type II
C. Type III
D. Type IV
Correct Answer: A. Type I
,Rationale: A bee sting causes an immediate hypersensitivity reaction (Type I) mediated by IgE antibodies
binding to mast cells, triggering histamine release and resulting in localized swelling, redness, and itching. Type
I reactions are IgE-mediated and occur within minutes of antigen exposure .
2. A 35-year-old woman with systemic lupus erythematosus (SLE) develops glomerulonephritis. This
manifestation is characteristic of which hypersensitivity reaction?
A. Type I
B. Type II
C. Type III
D. Type IV
Correct Answer: C. Type III
Rationale: SLE glomerulonephritis is a Type III hypersensitivity reaction involving immune complex deposition
(antigen-antibody complexes) in the glomerular basement membrane, leading to complement activation and
tissue damage. Type III reactions are immune-complex mediated .
3. Which of the following best describes the role of p53 in cancer development?
,A. It promotes cell division
B. It functions as a tumor suppressor gene
C. It activates oncogenes
D. It increases angiogenesis
Correct Answer: B. It functions as a tumor suppressor gene
Rationale: p53 is a tumor suppressor gene located on chromosome 17 that regulates the cell cycle and prevents
abnormal cell proliferation. It can initiate apoptosis in cells with damaged DNA, thereby preventing cancer
development .
4. A patient with tuberculosis develops granulomas in the lungs. The necrosis seen in these granulomas is
most likely:
A. Coagulative necrosis
B. Liquefactive necrosis
C. Caseous necrosis
D. Fat necrosis
Correct Answer: C. Caseous necrosis
, Rationale: Caseous necrosis is characteristic of tuberculosis and other granulomatous diseases. The necrotic
tissue has a cheese-like, white appearance due to the combination of coagulative and liquefactive necrosis .
5. Which of the following is a characteristic of malignant neoplasms?
A. Well-circumscribed borders
B. Slow growth
C. Invasion of surrounding tissues
D. Lack of metastasis
Correct Answer: C. Invasion of surrounding tissues
Rationale: Malignant neoplasms (cancers) are characterized by invasion of surrounding tissues and metastasis.
Benign tumors are well-circumscribed, grow slowly, and do not metastasize. Malignant cells are poorly
differentiated with a high mitotic index .
6. A patient experiences ischemia-reperfusion injury following a myocardial infarction. The primary
mechanism of injury in this condition is:
