NR283 PATHOPHYSIOLOGY FINAL EXAM
2026/2027 | VERIFIED QUESTIONS &
ANSWERS WITH DETAILED RATIONALES
NR283 PATHOPHYSIOLOGY FINAL EXAM 2026/2027
VERIFIED QUESTIONS & ANSWERS WITH DETAILED RATIONALES
DOCUMENT OVERVIEW:
• This comprehensive exam contains verified questions with detailed rationales
designed to test mastery of pathophysiology concepts across all organ systems and
disease processes essential for nursing practice.
• Study this material by reviewing each question carefully, attempting to answer
before reading the rationale, and using incorrect answers as learning opportunities
to strengthen weak areas in pathophysiology understanding.
1. A 45-year-old male patient presents with chronic hypertension for 10 years.
Which of the following cellular adaptations would most likely occur in the
myocardium as a result of prolonged pressure overload?
A) Hyperplasia of cardiac muscle cells
B) Decreased protein synthesis
C) Left ventricular hypertrophy
D) Atrophy of the left ventricle
E) Increased chamber dilation without wall thickening
CORRECT ANSWER: C) Left ventricular hypertrophy
Rationale: Left ventricular hypertrophy is the primary adaptive response to chronic
pressure overload from hypertension. The myocardium increases muscle fiber size
(hypertrophy) to meet increased workload demands. While hyperplasia occurs in
some tissues, cardiac myocytes primarily respond through hypertrophy. Decreased
protein synthesis and atrophy would occur with disuse or unloading, not pressure
,overload. Chamber dilation without wall thickening represents eccentric
hypertrophy seen in volume overload, not pressure overload.
2. A patient experiences acute ischemic injury to renal tissue following a
severe hypotensive episode. Which of the following mechanisms best explains
the initial cellular damage during the ischemic phase?
A) Increased oxidative phosphorylation
B) Depletion of ATP leading to failure of sodium-potassium pumps
C) Excessive production of glycogen
D) Increased cellular protein synthesis
E) Enhanced mitochondrial function
CORRECT ANSWER: B) Depletion of ATP leading to failure of sodium-potassium
pumps
Rationale: During ischemia, oxidative phosphorylation ceases due to lack of oxygen,
causing rapid ATP depletion. This ATP depletion prevents the sodium-potassium
ATPase from functioning, leading to sodium and water accumulation inside cells
and cellular swelling. The cell shifts to anaerobic metabolism, producing lactate and
hydrogen ions, causing intracellular acidosis. This is the primary mechanism of
reversible ischemic injury. Options A, C, D, and E all represent processes that
require adequate oxygenation and ATP availability.
3. A 62-year-old female patient is diagnosed with osteoporosis. The
pathophysiology involves an imbalance between bone resorption and bone
formation. Which of the following represents the primary mechanism of bone
loss in osteoporosis?
A) Increased osteoblast activity
B) Decreased parathyroid hormone secretion
C) Increased osteoclast activity exceeding osteoblast activity
,D) Hypercalcemia from increased vitamin D absorption
E) Decreased alkaline phosphatase production
CORRECT ANSWER: C) Increased osteoclast activity exceeding osteoblast
activity
Rationale: Osteoporosis results from an imbalance where osteoclastic bone
resorption exceeds osteoblastic bone formation. This leads to decreased bone
mineral density and increased fracture risk. The increased osteoclast activity can be
stimulated by estrogen deficiency (common in postmenopausal women),
inflammatory cytokines, or increased parathyroid hormone. Increased osteoblast
activity would build bone. Decreased PTH would reduce bone resorption.
Hypercalcemia would suppress bone resorption, not promote it.
4. A 28-year-old patient with systemic lupus erythematosus (SLE) presents
with glomerulonephritis. Which of the following immune mechanisms is
primarily responsible for the glomerular damage?
A) Type I hypersensitivity reaction
B) Immune complex deposition in the glomerular basement membrane
C) Direct T cell cytotoxicity
D) Antibody-mediated complement fixation only
E) Mast cell degranulation
CORRECT ANSWER: B) Immune complex deposition in the glomerular
basement membrane
Rationale: SLE glomerulonephritis is primarily caused by Type III hypersensitivity,
where antigen-antibody complexes (immune complexes) deposit in the glomerular
basement membrane. These deposits activate complement and recruit
inflammatory cells, causing inflammation and glomerular damage. While
complement fixation occurs, it is secondary to immune complex formation. Type I
hypersensitivity involves IgE and mast cells. Direct T cell cytotoxicity is characteristic
, of Type IV hypersensitivity. Mast cell degranulation is associated with allergic
responses.
5. A 55-year-old male patient experiences a myocardial infarction affecting
the anterior wall of the left ventricle. Which of the following consequences
would most likely occur due to the loss of contractile tissue?
A) Increased cardiac output
B) Decreased preload
C) Decreased ejection fraction
D) Increased afterload sensitivity only
E) Improved ventricular compliance
CORRECT ANSWER: C) Decreased ejection fraction
Rationale: Loss of contractile myocardial tissue from infarction reduces the heart's
pumping ability, directly decreasing the ejection fraction (the percentage of blood
ejected from the left ventricle). Ejection fraction = (stroke volume / end-diastolic
volume) × 100. With reduced contractile function, stroke volume decreases. This
would typically increase preload as blood backs up, and cardiac output would
decrease, not increase. Ventricular compliance would worsen as scar tissue forms.
6. A 72-year-old patient with chronic obstructive pulmonary disease (COPD)
develops compensatory polycythemia. Which of the following represents the
physiologic basis for this adaptation?
A) Decreased oxygen saturation stimulates erythropoietin production
B) Increased carbon dioxide levels directly stimulate bone marrow
C) Chronic acidosis prevents red blood cell destruction
D) Pulmonary vasoconstriction improves oxygen delivery
E) Decreased hemoglobin affinity for oxygen
2026/2027 | VERIFIED QUESTIONS &
ANSWERS WITH DETAILED RATIONALES
NR283 PATHOPHYSIOLOGY FINAL EXAM 2026/2027
VERIFIED QUESTIONS & ANSWERS WITH DETAILED RATIONALES
DOCUMENT OVERVIEW:
• This comprehensive exam contains verified questions with detailed rationales
designed to test mastery of pathophysiology concepts across all organ systems and
disease processes essential for nursing practice.
• Study this material by reviewing each question carefully, attempting to answer
before reading the rationale, and using incorrect answers as learning opportunities
to strengthen weak areas in pathophysiology understanding.
1. A 45-year-old male patient presents with chronic hypertension for 10 years.
Which of the following cellular adaptations would most likely occur in the
myocardium as a result of prolonged pressure overload?
A) Hyperplasia of cardiac muscle cells
B) Decreased protein synthesis
C) Left ventricular hypertrophy
D) Atrophy of the left ventricle
E) Increased chamber dilation without wall thickening
CORRECT ANSWER: C) Left ventricular hypertrophy
Rationale: Left ventricular hypertrophy is the primary adaptive response to chronic
pressure overload from hypertension. The myocardium increases muscle fiber size
(hypertrophy) to meet increased workload demands. While hyperplasia occurs in
some tissues, cardiac myocytes primarily respond through hypertrophy. Decreased
protein synthesis and atrophy would occur with disuse or unloading, not pressure
,overload. Chamber dilation without wall thickening represents eccentric
hypertrophy seen in volume overload, not pressure overload.
2. A patient experiences acute ischemic injury to renal tissue following a
severe hypotensive episode. Which of the following mechanisms best explains
the initial cellular damage during the ischemic phase?
A) Increased oxidative phosphorylation
B) Depletion of ATP leading to failure of sodium-potassium pumps
C) Excessive production of glycogen
D) Increased cellular protein synthesis
E) Enhanced mitochondrial function
CORRECT ANSWER: B) Depletion of ATP leading to failure of sodium-potassium
pumps
Rationale: During ischemia, oxidative phosphorylation ceases due to lack of oxygen,
causing rapid ATP depletion. This ATP depletion prevents the sodium-potassium
ATPase from functioning, leading to sodium and water accumulation inside cells
and cellular swelling. The cell shifts to anaerobic metabolism, producing lactate and
hydrogen ions, causing intracellular acidosis. This is the primary mechanism of
reversible ischemic injury. Options A, C, D, and E all represent processes that
require adequate oxygenation and ATP availability.
3. A 62-year-old female patient is diagnosed with osteoporosis. The
pathophysiology involves an imbalance between bone resorption and bone
formation. Which of the following represents the primary mechanism of bone
loss in osteoporosis?
A) Increased osteoblast activity
B) Decreased parathyroid hormone secretion
C) Increased osteoclast activity exceeding osteoblast activity
,D) Hypercalcemia from increased vitamin D absorption
E) Decreased alkaline phosphatase production
CORRECT ANSWER: C) Increased osteoclast activity exceeding osteoblast
activity
Rationale: Osteoporosis results from an imbalance where osteoclastic bone
resorption exceeds osteoblastic bone formation. This leads to decreased bone
mineral density and increased fracture risk. The increased osteoclast activity can be
stimulated by estrogen deficiency (common in postmenopausal women),
inflammatory cytokines, or increased parathyroid hormone. Increased osteoblast
activity would build bone. Decreased PTH would reduce bone resorption.
Hypercalcemia would suppress bone resorption, not promote it.
4. A 28-year-old patient with systemic lupus erythematosus (SLE) presents
with glomerulonephritis. Which of the following immune mechanisms is
primarily responsible for the glomerular damage?
A) Type I hypersensitivity reaction
B) Immune complex deposition in the glomerular basement membrane
C) Direct T cell cytotoxicity
D) Antibody-mediated complement fixation only
E) Mast cell degranulation
CORRECT ANSWER: B) Immune complex deposition in the glomerular
basement membrane
Rationale: SLE glomerulonephritis is primarily caused by Type III hypersensitivity,
where antigen-antibody complexes (immune complexes) deposit in the glomerular
basement membrane. These deposits activate complement and recruit
inflammatory cells, causing inflammation and glomerular damage. While
complement fixation occurs, it is secondary to immune complex formation. Type I
hypersensitivity involves IgE and mast cells. Direct T cell cytotoxicity is characteristic
, of Type IV hypersensitivity. Mast cell degranulation is associated with allergic
responses.
5. A 55-year-old male patient experiences a myocardial infarction affecting
the anterior wall of the left ventricle. Which of the following consequences
would most likely occur due to the loss of contractile tissue?
A) Increased cardiac output
B) Decreased preload
C) Decreased ejection fraction
D) Increased afterload sensitivity only
E) Improved ventricular compliance
CORRECT ANSWER: C) Decreased ejection fraction
Rationale: Loss of contractile myocardial tissue from infarction reduces the heart's
pumping ability, directly decreasing the ejection fraction (the percentage of blood
ejected from the left ventricle). Ejection fraction = (stroke volume / end-diastolic
volume) × 100. With reduced contractile function, stroke volume decreases. This
would typically increase preload as blood backs up, and cardiac output would
decrease, not increase. Ventricular compliance would worsen as scar tissue forms.
6. A 72-year-old patient with chronic obstructive pulmonary disease (COPD)
develops compensatory polycythemia. Which of the following represents the
physiologic basis for this adaptation?
A) Decreased oxygen saturation stimulates erythropoietin production
B) Increased carbon dioxide levels directly stimulate bone marrow
C) Chronic acidosis prevents red blood cell destruction
D) Pulmonary vasoconstriction improves oxygen delivery
E) Decreased hemoglobin affinity for oxygen
