NSG 530 ADVANCED PATHOPHYSIOLOGY FINAL REVIEW TEST WILkES
UNIVERSITY | 2026 EDITION | qUESTIONS AND ANSWERS WITH
RATIONALES/GRADED A+/2026 UPDATE/100% CORRECT /INSTANT
DOWNLOAD
SECTION 1: CELLULAR ADAPTATION AND INJURY (QUESTIONS 1-10)
Question 1
A patient with chronic heart failure develops muscle wasting despite adequate nutrition. This
condition is primarily mediated by:
A) Decreased protein synthesis due to anabolic resistance
B) Proinflammatory cytokines (TNF-alpha, IL-1, IL-6)
C) Malabsorption syndrome from bowel ischemia
D) Increased metabolic rate from thyroid hormone excess
Answer: B) Proinflammatory cytokines (TNF-alpha, IL-1, IL-6)
Rationale: Chronic heart failure induces a catabolic state driven by elevated proinflammatory
cytokines, causing muscle wasting (cardiac cachexia). This cytokine-mediated wasting is distinct from
simple malnutrition.
Question 2
A pathologist notes apple-green birefringence on Congo red staining of a tissue biopsy. This finding is
diagnostic of:
A) Hemosiderin accumulation (hemochromatosis)
B) Amyloid deposition (amyloidosis)
C) Lipofuscin pigment (wear and tear)
D) Bilirubin crystals (jaundice)
,Answer: B) Amyloid deposition (amyloidosis)
Rationale: Amyloid deposits exhibit characteristic apple-green birefringence under polarized light
when stained with Congo red due to the beta-pleated sheet structure of amyloid fibrils. This is
diagnostic of amyloidosis.
Question 3
During reperfusion of an ischemic myocardium following percutaneous coronary intervention, the
majority of additional cellular injury is caused by:
A) Intracellular acidosis from anaerobic metabolism
B) ATP depletion during the ischemic period
C) Reactive oxygen species (ROS) generated upon reoxygenation
D) Hypercalcemia from calcium overload
Answer: C) Reactive oxygen species (ROS) generated upon reoxygenation
Rationale: While ischemia causes initial damage via ATP depletion and intracellular acidosis,
reperfusion injury is primarily driven by the sudden reintroduction of oxygen, generating reactive
oxygen species that damage cell membranes through lipid peroxidation, protein oxidation, and DNA
damage.
Question 4
Which statement best describes the process of apoptosis?
A) Uncontrolled cell death with significant inflammation
B) Programmed cell death without inflammation
C) Rapid cell swelling and lysis (oncosis)
D) Cell death caused by ATP depletion from ischemia
,Answer: B) Programmed cell death without inflammation
Rationale: Apoptosis is a genetically regulated, energy-dependent process that eliminates damaged,
infected, or unnecessary cells without triggering inflammation. Features include cell shrinkage,
chromatin condensation, nuclear fragmentation, and formation of apoptotic bodies.
Question 5
A patient's liver biopsy shows accumulation of brown-yellow granular pigment within hepatocytes.
This finding most likely represents:
A) Acute ischemic injury with necrosis
B) Lipofuscin from normal aging (wear-and-tear pigment)
C) Hemosiderin from iron overload
D) Copper deposition from Wilson disease
Answer: B) Lipofuscin from normal aging (wear-and-tear pigment)
Rationale: Lipofuscin is an indigestible residue from lipid peroxidation within lysosomes (the wear-
and-tear pigment), commonly accumulating in aging cells of the liver, heart, and brain. It is not
associated with acute injury.
Question 6
A patient with long-standing hypertension develops left ventricular wall thickening. This cellular
adaptation is termed:
A) Hyperplasia (increased cell number)
B) Metaplasia (cell type conversion)
C) Hypertrophy (increased cell size)
D) Dysplasia (disordered growth)
Answer: C) Hypertrophy (increased cell size)
, Rationale: Cardiomyocytes are terminally differentiated and cannot divide; they respond to increased
afterload (hypertension) by enlarging (hypertrophy). This increases wall thickness and myocardial
oxygen demand but can eventually lead to heart failure if sustained.
Question 7
A lung biopsy from a patient with tuberculosis shows granular, cheese-like material within
granulomas. This type of necrosis is called:
A) Coagulative necrosis
B) Liquefactive necrosis
C) Caseous necrosis
D) Fat necrosis
Answer: C) Caseous necrosis
Rationale: Caseous necrosis (cheese-like appearance) is characteristic of tuberculosis and certain
fungal infections. It results from granulomatous inflammation and combines features of both
coagulative and liquefactive necrosis.
Question 8
In Duchenne muscular dystrophy, muscle fibers are progressively replaced by adipose and connective
tissue. This process represents:
A) Physiologic atrophy
B) Pathologic atrophy
C) Metaplasia
D) Dysplasia
Answer: B) Pathologic atrophy
UNIVERSITY | 2026 EDITION | qUESTIONS AND ANSWERS WITH
RATIONALES/GRADED A+/2026 UPDATE/100% CORRECT /INSTANT
DOWNLOAD
SECTION 1: CELLULAR ADAPTATION AND INJURY (QUESTIONS 1-10)
Question 1
A patient with chronic heart failure develops muscle wasting despite adequate nutrition. This
condition is primarily mediated by:
A) Decreased protein synthesis due to anabolic resistance
B) Proinflammatory cytokines (TNF-alpha, IL-1, IL-6)
C) Malabsorption syndrome from bowel ischemia
D) Increased metabolic rate from thyroid hormone excess
Answer: B) Proinflammatory cytokines (TNF-alpha, IL-1, IL-6)
Rationale: Chronic heart failure induces a catabolic state driven by elevated proinflammatory
cytokines, causing muscle wasting (cardiac cachexia). This cytokine-mediated wasting is distinct from
simple malnutrition.
Question 2
A pathologist notes apple-green birefringence on Congo red staining of a tissue biopsy. This finding is
diagnostic of:
A) Hemosiderin accumulation (hemochromatosis)
B) Amyloid deposition (amyloidosis)
C) Lipofuscin pigment (wear and tear)
D) Bilirubin crystals (jaundice)
,Answer: B) Amyloid deposition (amyloidosis)
Rationale: Amyloid deposits exhibit characteristic apple-green birefringence under polarized light
when stained with Congo red due to the beta-pleated sheet structure of amyloid fibrils. This is
diagnostic of amyloidosis.
Question 3
During reperfusion of an ischemic myocardium following percutaneous coronary intervention, the
majority of additional cellular injury is caused by:
A) Intracellular acidosis from anaerobic metabolism
B) ATP depletion during the ischemic period
C) Reactive oxygen species (ROS) generated upon reoxygenation
D) Hypercalcemia from calcium overload
Answer: C) Reactive oxygen species (ROS) generated upon reoxygenation
Rationale: While ischemia causes initial damage via ATP depletion and intracellular acidosis,
reperfusion injury is primarily driven by the sudden reintroduction of oxygen, generating reactive
oxygen species that damage cell membranes through lipid peroxidation, protein oxidation, and DNA
damage.
Question 4
Which statement best describes the process of apoptosis?
A) Uncontrolled cell death with significant inflammation
B) Programmed cell death without inflammation
C) Rapid cell swelling and lysis (oncosis)
D) Cell death caused by ATP depletion from ischemia
,Answer: B) Programmed cell death without inflammation
Rationale: Apoptosis is a genetically regulated, energy-dependent process that eliminates damaged,
infected, or unnecessary cells without triggering inflammation. Features include cell shrinkage,
chromatin condensation, nuclear fragmentation, and formation of apoptotic bodies.
Question 5
A patient's liver biopsy shows accumulation of brown-yellow granular pigment within hepatocytes.
This finding most likely represents:
A) Acute ischemic injury with necrosis
B) Lipofuscin from normal aging (wear-and-tear pigment)
C) Hemosiderin from iron overload
D) Copper deposition from Wilson disease
Answer: B) Lipofuscin from normal aging (wear-and-tear pigment)
Rationale: Lipofuscin is an indigestible residue from lipid peroxidation within lysosomes (the wear-
and-tear pigment), commonly accumulating in aging cells of the liver, heart, and brain. It is not
associated with acute injury.
Question 6
A patient with long-standing hypertension develops left ventricular wall thickening. This cellular
adaptation is termed:
A) Hyperplasia (increased cell number)
B) Metaplasia (cell type conversion)
C) Hypertrophy (increased cell size)
D) Dysplasia (disordered growth)
Answer: C) Hypertrophy (increased cell size)
, Rationale: Cardiomyocytes are terminally differentiated and cannot divide; they respond to increased
afterload (hypertension) by enlarging (hypertrophy). This increases wall thickness and myocardial
oxygen demand but can eventually lead to heart failure if sustained.
Question 7
A lung biopsy from a patient with tuberculosis shows granular, cheese-like material within
granulomas. This type of necrosis is called:
A) Coagulative necrosis
B) Liquefactive necrosis
C) Caseous necrosis
D) Fat necrosis
Answer: C) Caseous necrosis
Rationale: Caseous necrosis (cheese-like appearance) is characteristic of tuberculosis and certain
fungal infections. It results from granulomatous inflammation and combines features of both
coagulative and liquefactive necrosis.
Question 8
In Duchenne muscular dystrophy, muscle fibers are progressively replaced by adipose and connective
tissue. This process represents:
A) Physiologic atrophy
B) Pathologic atrophy
C) Metaplasia
D) Dysplasia
Answer: B) Pathologic atrophy
