Chamberlain NR283
Pathophysiology: Complete
Exam Questions and Well
Graded Solutions with
Rationales Updated 2026-
2027
Excel in Chamberlain University's NR283 Pathophysiology course with this
ultimate exam prep question bank. Tailored precisely to nursing curriculum
standards, this document delivers highly structured practice questions with
exact answers and thorough rationales. Perfect for mastering tough topics like
acid-base balance, hypersensitivities, shock types, and organ system failure.
Boost your study efficiency, understand complex disease mechanisms, and
confidently pass your proctored unit and final exams.
1|Page
, Question 1. A 45-year-old male with long-standing, untreated hypertension
experiences an increase in the size of his left ventricular myocardial cells. This
cellular adaptation is best described as which of the following?
• A) Hyperplasia
• B) Hypertrophy
• C) Metaplasia
• D) Dysplasia
Answer: B) Hypertrophy
Rationale: Hypertrophy is an increase in the size of individual cells, leading to an
increase in the size of the organ. It occurs in cells like myocardium that cannot divide
to form new cells (hyperplasia) when faced with increased mechanical workload.
Question 2. A biopsy of the uterine cervix reveals abnormal changes in cellular size,
shape, and organization, along with a loss of normal architecture. Which cellular
modification does this represent?
• A) Atrophy
• B) Metaplasia
• C) Dysplasia
• D) Anaplasia
Answer: C) Dysplasia
Rationale: Dysplasia refers to abnormal, disordered cellular growth resulting in
variations in size, shape, and organization. Although adaptive, it is strongly
associated with neoplastic transformation and is considered a precancerous change.
Question 3. During an acute inflammatory response, what is the primary
physiological driver responsible for the localized swelling (edema) observed at the
site of injury?
• A) Decreased capillary permeability
• B) Increased capillary hydrostatic pressure
• C) Increased capillary permeability
• D) Arteriolar vasoconstriction
Answer: C) Increased capillary permeability
Rationale: Inflammatory mediators like histamine induce endothelial cell contraction,
which increases capillary permeability. This allows protein-rich fluid (exudate) to
escape into the interstitial space, lowering intravascular oncotic pressure and
causing localized edema.
2|Page
, Question 4. Which type of hypersensitivity reaction is mediated by IgE antibodies
binding to mast cells, resulting in degranulation and the systemic release of
histamine during an anaphylactic event?
• A) Type I
• B) Type II
• C) Type III
• D) Type IV
Answer: A) Type I
Rationale: Type I hypersensitivity is an immediate allergic reaction mediated by IgE.
Antigen binding triggers mast cell degranulation, causing rapid physiological
responses like vasodilation, bronchoconstriction, and systemic anaphylaxis.
Question 5. A patient presents to the clinic with severe fatigue and pallor. Laboratory
results show a low hemoglobin level, a low mean corpuscular volume (MCV), and a
low mean corpuscular hemoglobin concentration (MCHC). Which type of anemia is
most consistent with these findings?
• A) Pernicious anemia
• B) Aplastic anemia
• C) Iron deficiency anemia
• D) Hemolytic anemia
Answer: C) Iron deficiency anemia
Rationale: Iron deficiency anemia is classically characterized as microcytic (low
MCV) and hypochromic (low MCHC). It occurs when iron stores are insufficient to
support normal hemoglobin synthesis.
Question 6. A patient presents with a deep vein thrombosis (DVT) in the lower
extremity. According to Virchow's triad, which three factors contribute directly to the
development of this venous thrombosis?
• A) Vasoconstriction, tissue hypoxia, and localized pain
• B) Endothelial injury, stasis of blood flow, and hypercoagulability
• C) Arterial insufficiency, hypotension, and thrombocytopenia
• D) Capillary leaking, macrovascular plaques, and leukocytosis
Answer: B) Endothelial injury, stasis of blood flow, and hypercoagulability
Rationale: Virchow's triad outlines the three primary categories of factors thought to
3|Page
, contribute to thrombosis: endothelial damage, alterations in normal blood flow (stasis
or turbulence), and alterations in the constitution of blood (hypercoagulability).
Question 7. A laboratory report for an arterial blood gas (ABG) analysis shows the
following results: pH 7.30, PaCO2 52 mmHg, and HCO3- 24 mEq/L. Which acid-
base imbalance is present?
• A) Uncompensated metabolic acidosis
• B) Uncompensated respiratory acidosis
• C) Partially compensated respiratory acidosis
• D) Fully compensated metabolic alkalosis
Answer: B) Uncompensated respiratory acidosis
Rationale: The pH is below 7.35, indicating acidosis. The PaCO2 is elevated above
45 mmHg, establishing a respiratory origin. Because the bicarbonate (HCO ₃⁻) is
completely normal (24 mEq/L), the renal system has not yet initiated compensation.
Question 8. What is the fundamental pathophysiology driving the development of
Type 1 Diabetes Mellitus?
• A) Decreased peripheral tissue sensitivity to insulin
• B) Hypersecretion of glucagon from pancreatic alpha cells
• C) Autoimmune destruction of pancreatic beta cells
• D) Excessive renal excretion of insulin molecules
Answer: C) Autoimmune destruction of pancreatic beta cells
Rationale: Type 1 Diabetes Mellitus is caused by T-cell-mediated autoimmune
destruction of insulin-secreting beta cells within the pancreatic islets of Langerhans,
resulting in an absolute deficiency of insulin.
Question 9. A patient with advanced chronic kidney disease (CKD) presents with
severe anemia. What is the primary underlying cause of anemia in patients with end-
stage renal pathology?
• A) Chronic gastrointestinal bleeding
• B) Direct toxic destruction of circulating erythrocytes
• C) Deficient production of erythropoietin by the kidneys
• D) Dietary restrictions leading to severe folic acid deficiency
4|Page
Pathophysiology: Complete
Exam Questions and Well
Graded Solutions with
Rationales Updated 2026-
2027
Excel in Chamberlain University's NR283 Pathophysiology course with this
ultimate exam prep question bank. Tailored precisely to nursing curriculum
standards, this document delivers highly structured practice questions with
exact answers and thorough rationales. Perfect for mastering tough topics like
acid-base balance, hypersensitivities, shock types, and organ system failure.
Boost your study efficiency, understand complex disease mechanisms, and
confidently pass your proctored unit and final exams.
1|Page
, Question 1. A 45-year-old male with long-standing, untreated hypertension
experiences an increase in the size of his left ventricular myocardial cells. This
cellular adaptation is best described as which of the following?
• A) Hyperplasia
• B) Hypertrophy
• C) Metaplasia
• D) Dysplasia
Answer: B) Hypertrophy
Rationale: Hypertrophy is an increase in the size of individual cells, leading to an
increase in the size of the organ. It occurs in cells like myocardium that cannot divide
to form new cells (hyperplasia) when faced with increased mechanical workload.
Question 2. A biopsy of the uterine cervix reveals abnormal changes in cellular size,
shape, and organization, along with a loss of normal architecture. Which cellular
modification does this represent?
• A) Atrophy
• B) Metaplasia
• C) Dysplasia
• D) Anaplasia
Answer: C) Dysplasia
Rationale: Dysplasia refers to abnormal, disordered cellular growth resulting in
variations in size, shape, and organization. Although adaptive, it is strongly
associated with neoplastic transformation and is considered a precancerous change.
Question 3. During an acute inflammatory response, what is the primary
physiological driver responsible for the localized swelling (edema) observed at the
site of injury?
• A) Decreased capillary permeability
• B) Increased capillary hydrostatic pressure
• C) Increased capillary permeability
• D) Arteriolar vasoconstriction
Answer: C) Increased capillary permeability
Rationale: Inflammatory mediators like histamine induce endothelial cell contraction,
which increases capillary permeability. This allows protein-rich fluid (exudate) to
escape into the interstitial space, lowering intravascular oncotic pressure and
causing localized edema.
2|Page
, Question 4. Which type of hypersensitivity reaction is mediated by IgE antibodies
binding to mast cells, resulting in degranulation and the systemic release of
histamine during an anaphylactic event?
• A) Type I
• B) Type II
• C) Type III
• D) Type IV
Answer: A) Type I
Rationale: Type I hypersensitivity is an immediate allergic reaction mediated by IgE.
Antigen binding triggers mast cell degranulation, causing rapid physiological
responses like vasodilation, bronchoconstriction, and systemic anaphylaxis.
Question 5. A patient presents to the clinic with severe fatigue and pallor. Laboratory
results show a low hemoglobin level, a low mean corpuscular volume (MCV), and a
low mean corpuscular hemoglobin concentration (MCHC). Which type of anemia is
most consistent with these findings?
• A) Pernicious anemia
• B) Aplastic anemia
• C) Iron deficiency anemia
• D) Hemolytic anemia
Answer: C) Iron deficiency anemia
Rationale: Iron deficiency anemia is classically characterized as microcytic (low
MCV) and hypochromic (low MCHC). It occurs when iron stores are insufficient to
support normal hemoglobin synthesis.
Question 6. A patient presents with a deep vein thrombosis (DVT) in the lower
extremity. According to Virchow's triad, which three factors contribute directly to the
development of this venous thrombosis?
• A) Vasoconstriction, tissue hypoxia, and localized pain
• B) Endothelial injury, stasis of blood flow, and hypercoagulability
• C) Arterial insufficiency, hypotension, and thrombocytopenia
• D) Capillary leaking, macrovascular plaques, and leukocytosis
Answer: B) Endothelial injury, stasis of blood flow, and hypercoagulability
Rationale: Virchow's triad outlines the three primary categories of factors thought to
3|Page
, contribute to thrombosis: endothelial damage, alterations in normal blood flow (stasis
or turbulence), and alterations in the constitution of blood (hypercoagulability).
Question 7. A laboratory report for an arterial blood gas (ABG) analysis shows the
following results: pH 7.30, PaCO2 52 mmHg, and HCO3- 24 mEq/L. Which acid-
base imbalance is present?
• A) Uncompensated metabolic acidosis
• B) Uncompensated respiratory acidosis
• C) Partially compensated respiratory acidosis
• D) Fully compensated metabolic alkalosis
Answer: B) Uncompensated respiratory acidosis
Rationale: The pH is below 7.35, indicating acidosis. The PaCO2 is elevated above
45 mmHg, establishing a respiratory origin. Because the bicarbonate (HCO ₃⁻) is
completely normal (24 mEq/L), the renal system has not yet initiated compensation.
Question 8. What is the fundamental pathophysiology driving the development of
Type 1 Diabetes Mellitus?
• A) Decreased peripheral tissue sensitivity to insulin
• B) Hypersecretion of glucagon from pancreatic alpha cells
• C) Autoimmune destruction of pancreatic beta cells
• D) Excessive renal excretion of insulin molecules
Answer: C) Autoimmune destruction of pancreatic beta cells
Rationale: Type 1 Diabetes Mellitus is caused by T-cell-mediated autoimmune
destruction of insulin-secreting beta cells within the pancreatic islets of Langerhans,
resulting in an absolute deficiency of insulin.
Question 9. A patient with advanced chronic kidney disease (CKD) presents with
severe anemia. What is the primary underlying cause of anemia in patients with end-
stage renal pathology?
• A) Chronic gastrointestinal bleeding
• B) Direct toxic destruction of circulating erythrocytes
• C) Deficient production of erythropoietin by the kidneys
• D) Dietary restrictions leading to severe folic acid deficiency
4|Page
