NSG 530 ADVANCED PATHOPHYSIOLOGY
COMPREHENSIVE EXAM 1, 2, 3 & 4 Verified Questions With
Detailed Clinical Rationales | 2025-2026 Edition Wilkes
University | Advanced Pathophysiology
CORE DOMAINS COVERED:
• Cellular Adaptation & Injury - Atrophy, hypertrophy, hyperplasia, metaplasia,
dysplasia; reversible vs. irreversible injury; apoptosis vs. necrosis; cellular aging
• Inflammation & Immunity - Acute vs. chronic inflammation, vascular response,
cellular mediators, fever, wound healing, immune system components
• Hypersensitivity Reactions - Type I (anaphylactic), Type II (cytotoxic), Type III
(immune complex), Type IV (delayed cell-mediated)
• Autoimmune Disorders - Mechanisms of autoimmunity, systemic lupus
erythematosus, rheumatoid arthritis, Graves' disease, type 1 diabetes
• Infectious Diseases - Bacterial, viral, fungal, parasitic infections; pathogenesis,
transmission, host defense mechanisms
• Neoplasia & Cancer Pathophysiology - Carcinogenesis, tumor characteristics,
metastasis, paraneoplastic syndromes, tumor markers
• Fluid & Electrolyte Imbalances - Dehydration, overhydration, electrolyte
disturbances (Na+, K+, Ca++, Mg++)
• Acid-Base Disorders - Respiratory and metabolic acidosis/alkalosis, compensation
mechanisms, ABG interpretation
• Hematologic Disorders - Anemias, leukemias, lymphomas, bleeding disorders,
coagulation pathways
• Cardiovascular Pathophysiology - Heart failure, hypertension, atherosclerosis,
myocardial infarction, arrhythmias
• Pulmonary Pathophysiology - COPD, asthma, pneumonia, pulmonary embolism,
ARDS, respiratory failure
, • Renal Pathophysiology - Acute kidney injury, chronic kidney disease,
glomerulonephritis, pyelonephritis
• Gastrointestinal Pathophysiology - Liver disease, pancreatitis, inflammatory bowel
disease, peptic ulcer disease
• Endocrine Pathophysiology - Diabetes mellitus, thyroid disorders, adrenal
disorders, pituitary disorders
• Neurologic Pathophysiology - Stroke, seizures, Parkinson's disease, Alzheimer's
disease, meningitis
• Genetic & Developmental Disorders - Mendelian inheritance patterns,
chromosomal abnormalities, congenital anomalies
SECTION A: CELLULAR ADAPTATION & INJURY
1. A patient with chronic obstructive pulmonary disease (COPD) develops muscle
wasting and weakness. This is an example of which cellular adaptation?
A. Hypertrophy
B. Hyperplasia
C. Atrophy
D. Metaplasia
Answer: C. Atrophy
Rationale: Atrophy is a decrease in cell size and function due to reduced workload,
denervation, ischemia, or malnutrition. In COPD, muscle atrophy occurs due to disuse and
systemic inflammation. This reduces organ size and function.
2. In response to increased workload, cardiac muscle cells increase in size. This
adaptation is known as:
A. Atrophy
B. Hypertrophy
C. Hyperplasia
D. Metaplasia
Answer: B. Hypertrophy
, Rationale: Hypertrophy is an increase in cell size in response to increased workload or
mechanical stress. Cardiac muscle cells do not divide (post-mitotic), so they compensate for
increased demand by enlarging, as seen in hypertension.
3. Chronic irritation of the esophagus from gastroesophageal reflux disease leads to
replacement of squamous epithelium with columnar epithelium. This is called:
A. Dysplasia
B. Hyperplasia
C. Metaplasia
D. Anaplasia
Answer: C. Metaplasia
Rationale: Metaplasia is a reversible change where one differentiated cell type is
replaced by another. In Barrett's esophagus, squamous epithelium (normal) is replaced by
columnar epithelium in response to chronic acid irritation.
4. The reversible cellular response that involves an increase in the number of cells in
an organ or tissue is known as:
A. Hypertrophy
B. Hyperplasia
C. Metaplasia
D. Dysplasia
Answer: B. Hyperplasia
Rationale: Hyperplasia is an increase in the number of cells in an organ or tissue due
to increased mitotic activity. It can be physiologic (e.g., endometrial hyperplasia during
menstrual cycle) or pathologic (e.g., benign prostatic hyperplasia).
5. Which type of necrosis is most commonly associated with a bacterial infection and
is characterized by a creamy yellow appearance?
A. Coagulative necrosis
B. Liquefactive necrosis
, C. Caseous necrosis
D. Fat necrosis
Answer: B. Liquefactive necrosis
Rationale: Liquefactive necrosis is associated with bacterial infections and occurs
when enzymatic digestion of cells creates a pus-filled cavity. The creamy yellow
appearance is due to the presence of dead neutrophils (pus).
6. The type of necrosis that is characterized by a dry, firm, and grey-white
appearance with preservation of tissue architecture for several days is:
A. Liquefactive necrosis
B. Caseous necrosis
C. Coagulative necrosis
D. Gangrenous necrosis
Answer: C. Coagulative necrosis
Rationale: Coagulative necrosis is caused by ischemia and hypoxia. It is characterized
by denaturation of proteins, leading to a dry, firm, grey-white appearance. Tissue
architecture is preserved for days. It is most common in myocardial infarction.
7. A patient with pulmonary tuberculosis develops granulomas with a cheese-like
appearance. This is characteristic of:
A. Coagulative necrosis
B. Liquefactive necrosis
C. Caseous necrosis
D. Fibrinoid necrosis
Answer: C. Caseous necrosis
Rationale: Caseous necrosis is associated with tuberculosis and other granulomatous
diseases. The term "caseous" derives from its cheese-like appearance. Granulomas contain
macrophages, lymphocytes, and a central area of necrosis.
8. The irreversible stage of cellular injury is characterized by:
COMPREHENSIVE EXAM 1, 2, 3 & 4 Verified Questions With
Detailed Clinical Rationales | 2025-2026 Edition Wilkes
University | Advanced Pathophysiology
CORE DOMAINS COVERED:
• Cellular Adaptation & Injury - Atrophy, hypertrophy, hyperplasia, metaplasia,
dysplasia; reversible vs. irreversible injury; apoptosis vs. necrosis; cellular aging
• Inflammation & Immunity - Acute vs. chronic inflammation, vascular response,
cellular mediators, fever, wound healing, immune system components
• Hypersensitivity Reactions - Type I (anaphylactic), Type II (cytotoxic), Type III
(immune complex), Type IV (delayed cell-mediated)
• Autoimmune Disorders - Mechanisms of autoimmunity, systemic lupus
erythematosus, rheumatoid arthritis, Graves' disease, type 1 diabetes
• Infectious Diseases - Bacterial, viral, fungal, parasitic infections; pathogenesis,
transmission, host defense mechanisms
• Neoplasia & Cancer Pathophysiology - Carcinogenesis, tumor characteristics,
metastasis, paraneoplastic syndromes, tumor markers
• Fluid & Electrolyte Imbalances - Dehydration, overhydration, electrolyte
disturbances (Na+, K+, Ca++, Mg++)
• Acid-Base Disorders - Respiratory and metabolic acidosis/alkalosis, compensation
mechanisms, ABG interpretation
• Hematologic Disorders - Anemias, leukemias, lymphomas, bleeding disorders,
coagulation pathways
• Cardiovascular Pathophysiology - Heart failure, hypertension, atherosclerosis,
myocardial infarction, arrhythmias
• Pulmonary Pathophysiology - COPD, asthma, pneumonia, pulmonary embolism,
ARDS, respiratory failure
, • Renal Pathophysiology - Acute kidney injury, chronic kidney disease,
glomerulonephritis, pyelonephritis
• Gastrointestinal Pathophysiology - Liver disease, pancreatitis, inflammatory bowel
disease, peptic ulcer disease
• Endocrine Pathophysiology - Diabetes mellitus, thyroid disorders, adrenal
disorders, pituitary disorders
• Neurologic Pathophysiology - Stroke, seizures, Parkinson's disease, Alzheimer's
disease, meningitis
• Genetic & Developmental Disorders - Mendelian inheritance patterns,
chromosomal abnormalities, congenital anomalies
SECTION A: CELLULAR ADAPTATION & INJURY
1. A patient with chronic obstructive pulmonary disease (COPD) develops muscle
wasting and weakness. This is an example of which cellular adaptation?
A. Hypertrophy
B. Hyperplasia
C. Atrophy
D. Metaplasia
Answer: C. Atrophy
Rationale: Atrophy is a decrease in cell size and function due to reduced workload,
denervation, ischemia, or malnutrition. In COPD, muscle atrophy occurs due to disuse and
systemic inflammation. This reduces organ size and function.
2. In response to increased workload, cardiac muscle cells increase in size. This
adaptation is known as:
A. Atrophy
B. Hypertrophy
C. Hyperplasia
D. Metaplasia
Answer: B. Hypertrophy
, Rationale: Hypertrophy is an increase in cell size in response to increased workload or
mechanical stress. Cardiac muscle cells do not divide (post-mitotic), so they compensate for
increased demand by enlarging, as seen in hypertension.
3. Chronic irritation of the esophagus from gastroesophageal reflux disease leads to
replacement of squamous epithelium with columnar epithelium. This is called:
A. Dysplasia
B. Hyperplasia
C. Metaplasia
D. Anaplasia
Answer: C. Metaplasia
Rationale: Metaplasia is a reversible change where one differentiated cell type is
replaced by another. In Barrett's esophagus, squamous epithelium (normal) is replaced by
columnar epithelium in response to chronic acid irritation.
4. The reversible cellular response that involves an increase in the number of cells in
an organ or tissue is known as:
A. Hypertrophy
B. Hyperplasia
C. Metaplasia
D. Dysplasia
Answer: B. Hyperplasia
Rationale: Hyperplasia is an increase in the number of cells in an organ or tissue due
to increased mitotic activity. It can be physiologic (e.g., endometrial hyperplasia during
menstrual cycle) or pathologic (e.g., benign prostatic hyperplasia).
5. Which type of necrosis is most commonly associated with a bacterial infection and
is characterized by a creamy yellow appearance?
A. Coagulative necrosis
B. Liquefactive necrosis
, C. Caseous necrosis
D. Fat necrosis
Answer: B. Liquefactive necrosis
Rationale: Liquefactive necrosis is associated with bacterial infections and occurs
when enzymatic digestion of cells creates a pus-filled cavity. The creamy yellow
appearance is due to the presence of dead neutrophils (pus).
6. The type of necrosis that is characterized by a dry, firm, and grey-white
appearance with preservation of tissue architecture for several days is:
A. Liquefactive necrosis
B. Caseous necrosis
C. Coagulative necrosis
D. Gangrenous necrosis
Answer: C. Coagulative necrosis
Rationale: Coagulative necrosis is caused by ischemia and hypoxia. It is characterized
by denaturation of proteins, leading to a dry, firm, grey-white appearance. Tissue
architecture is preserved for days. It is most common in myocardial infarction.
7. A patient with pulmonary tuberculosis develops granulomas with a cheese-like
appearance. This is characteristic of:
A. Coagulative necrosis
B. Liquefactive necrosis
C. Caseous necrosis
D. Fibrinoid necrosis
Answer: C. Caseous necrosis
Rationale: Caseous necrosis is associated with tuberculosis and other granulomatous
diseases. The term "caseous" derives from its cheese-like appearance. Granulomas contain
macrophages, lymphocytes, and a central area of necrosis.
8. The irreversible stage of cellular injury is characterized by:
