NSG5003 Final Exam Prep 2026/2027
Advanced Pathophysiology – Comprehensive Practice Exam
Expert-Aligned Structure | 100 Multiple-Choice Questions | Answers & Rationales
INTRODUCTION
This structured NSG5003 Final Exam Prep provides a comprehensive set of 100 multiple-choice
questions. It emphasizes the understanding of disease mechanisms at the cellular and sys-
temic levels, linking pathophysiological alterations to clinical manifestations. Correct answers
are highlighted in bold cyan blue.
1. A patient is diagnosed with a mitochondrial disorder. Which cellular process is most
likely impaired, leading to fatigue and muscle weakness?
A. Protein synthesis in the rough endoplasmic reticulum
B. ATP production via oxidative phosphorylation
C. Degradation of cellular waste by lysosomes
D. Regulation of intracellular calcium by the smooth ER
Rationale: Mitochondria are the primary sites for aerobic metabolism and ATP production. Failure in
this process results in an energy deficit, primarily affecting high-energy demand tissues like muscle,
leading to fatigue.
2. In the context of cellular adaptation, a patient with long-standing untreated hyperten-
sion develops left ventricular enlargement. This is an example of:
A. Hyperplasia
B. Hypertrophy
C. Metaplasia
D. Dysplasia
Rationale: Hypertrophy is an increase in the size of cells due to increased functional demand. Cardiac
myocytes cannot undergo hyperplasia; they increase in size to compensate for the increased afterload
of hypertension.
3. A 45-year-old male with chronic GERD reveals that the normal squamous epithelium of
the esophagus has been replaced by columnar epithelium. This is:
A. Atrophy
B. Neoplasia
C. Metaplasia
D. Anaplasia
1
,Rationale: Metaplasia is a reversible change where one adult cell type is replaced by another to better
withstand environmental stress (acid).
4. Which genetic principle explains why some individuals with the BRCA1 mutation de-
velop cancer at 25, while others with the same mutation do not?
A. Genomic imprinting
B. Aneuploidy
C. Reduced penetrance and variable expressivity
D. X-inactivation
Rationale: Penetrance refers to the percentage expressing the phenotype; expressivity refers to the
variation in severity.
5. During inflammation, which mediator is primarily responsible for inducing pain by sen-
sitizing nociceptors?
A. Histamine
B. Cytokines
C. Prostaglandins
D. Nitric Oxide
Rationale: Prostaglandins (PGE2) lower the threshold of nociceptors, directly contributing to the pain
associated with inflammation.
6. A patient presents with severe edema and a serum albumin level of 1.8 g/dL. Which
Starling force alteration explains the edema?
A. Increased capillary hydrostatic pressure
B. Decreased capillary oncotic pressure
C. Increased interstitial hydrostatic pressure
D. Decreased interstitial oncotic pressure
Rationale: Albumin maintains plasma oncotic pressure. Low albumin (hypoalbuminemia) decreases
the ”pull” of fluid back into capillaries, causing edema.
7. Type 1 Diabetes Mellitus is characterized by autoimmune destruction of beta cells. This
is which hypersensitivity reaction?
A. Type I
B. Type II
C. Type III
D. Type IV (Cell-mediated)
Rationale: Type 1 DM involves T-cell mediated destruction of beta cells, classifying it as a delayed-type
(Type IV) hypersensitivity.
8. In the TNM staging system for neoplasia, the ”N” refers to:
2
, A. The size of the primary neoplasm
B. Involvement of regional lymph nodes
C. The number of metastatic sites
D. Cellular differentiation
Rationale: N refers to regional lymph Node involvement.
9. Which laboratory finding is most consistent with Primary Hyperaldosteronism?
A. Hypokalemia and Hypertension
B. Hyperkalemia and Hypotension
C. Hyponatremia and Acidosis
D. Hypercalcemia and Polyuria
Rationale: Aldosterone causes Na+/water reabsorption (hypertension) and K+ excretion (hypokalemia).
10. A patient with ESRD has chronic anemia. What is the primary cause?
A. Iron deficiency
B. Blood loss during dialysis
C. Deficient production of erythropoietin
D. Increased RBC destruction
Rationale: The kidneys produce erythropoietin; in ESRD, this production fails, leading to anemia.
11. Which describes the pathophysiology of Myasthenia Gravis?
A. Myelin destruction in CNS
B. Dopaminergic loss
C. Autoantibodies against acetylcholine receptors
D. Glutamate neurotoxicity
Rationale: MG involves IgG autoantibodies blocking ACh receptors at the neuromuscular junction.
12. ABG shows pH 7.28, PaCO2 55, and HCO3 26. This is:
A. Metabolic Acidosis
B. Respiratory Acidosis
C. Respiratory Alkalosis
D. Metabolic Alkalosis
Rationale: Low pH and high PaCO2 indicate respiratory-driven acidosis.
13. In HFpEF, the primary problem is:
A. Weak contractility
3
Advanced Pathophysiology – Comprehensive Practice Exam
Expert-Aligned Structure | 100 Multiple-Choice Questions | Answers & Rationales
INTRODUCTION
This structured NSG5003 Final Exam Prep provides a comprehensive set of 100 multiple-choice
questions. It emphasizes the understanding of disease mechanisms at the cellular and sys-
temic levels, linking pathophysiological alterations to clinical manifestations. Correct answers
are highlighted in bold cyan blue.
1. A patient is diagnosed with a mitochondrial disorder. Which cellular process is most
likely impaired, leading to fatigue and muscle weakness?
A. Protein synthesis in the rough endoplasmic reticulum
B. ATP production via oxidative phosphorylation
C. Degradation of cellular waste by lysosomes
D. Regulation of intracellular calcium by the smooth ER
Rationale: Mitochondria are the primary sites for aerobic metabolism and ATP production. Failure in
this process results in an energy deficit, primarily affecting high-energy demand tissues like muscle,
leading to fatigue.
2. In the context of cellular adaptation, a patient with long-standing untreated hyperten-
sion develops left ventricular enlargement. This is an example of:
A. Hyperplasia
B. Hypertrophy
C. Metaplasia
D. Dysplasia
Rationale: Hypertrophy is an increase in the size of cells due to increased functional demand. Cardiac
myocytes cannot undergo hyperplasia; they increase in size to compensate for the increased afterload
of hypertension.
3. A 45-year-old male with chronic GERD reveals that the normal squamous epithelium of
the esophagus has been replaced by columnar epithelium. This is:
A. Atrophy
B. Neoplasia
C. Metaplasia
D. Anaplasia
1
,Rationale: Metaplasia is a reversible change where one adult cell type is replaced by another to better
withstand environmental stress (acid).
4. Which genetic principle explains why some individuals with the BRCA1 mutation de-
velop cancer at 25, while others with the same mutation do not?
A. Genomic imprinting
B. Aneuploidy
C. Reduced penetrance and variable expressivity
D. X-inactivation
Rationale: Penetrance refers to the percentage expressing the phenotype; expressivity refers to the
variation in severity.
5. During inflammation, which mediator is primarily responsible for inducing pain by sen-
sitizing nociceptors?
A. Histamine
B. Cytokines
C. Prostaglandins
D. Nitric Oxide
Rationale: Prostaglandins (PGE2) lower the threshold of nociceptors, directly contributing to the pain
associated with inflammation.
6. A patient presents with severe edema and a serum albumin level of 1.8 g/dL. Which
Starling force alteration explains the edema?
A. Increased capillary hydrostatic pressure
B. Decreased capillary oncotic pressure
C. Increased interstitial hydrostatic pressure
D. Decreased interstitial oncotic pressure
Rationale: Albumin maintains plasma oncotic pressure. Low albumin (hypoalbuminemia) decreases
the ”pull” of fluid back into capillaries, causing edema.
7. Type 1 Diabetes Mellitus is characterized by autoimmune destruction of beta cells. This
is which hypersensitivity reaction?
A. Type I
B. Type II
C. Type III
D. Type IV (Cell-mediated)
Rationale: Type 1 DM involves T-cell mediated destruction of beta cells, classifying it as a delayed-type
(Type IV) hypersensitivity.
8. In the TNM staging system for neoplasia, the ”N” refers to:
2
, A. The size of the primary neoplasm
B. Involvement of regional lymph nodes
C. The number of metastatic sites
D. Cellular differentiation
Rationale: N refers to regional lymph Node involvement.
9. Which laboratory finding is most consistent with Primary Hyperaldosteronism?
A. Hypokalemia and Hypertension
B. Hyperkalemia and Hypotension
C. Hyponatremia and Acidosis
D. Hypercalcemia and Polyuria
Rationale: Aldosterone causes Na+/water reabsorption (hypertension) and K+ excretion (hypokalemia).
10. A patient with ESRD has chronic anemia. What is the primary cause?
A. Iron deficiency
B. Blood loss during dialysis
C. Deficient production of erythropoietin
D. Increased RBC destruction
Rationale: The kidneys produce erythropoietin; in ESRD, this production fails, leading to anemia.
11. Which describes the pathophysiology of Myasthenia Gravis?
A. Myelin destruction in CNS
B. Dopaminergic loss
C. Autoantibodies against acetylcholine receptors
D. Glutamate neurotoxicity
Rationale: MG involves IgG autoantibodies blocking ACh receptors at the neuromuscular junction.
12. ABG shows pH 7.28, PaCO2 55, and HCO3 26. This is:
A. Metabolic Acidosis
B. Respiratory Acidosis
C. Respiratory Alkalosis
D. Metabolic Alkalosis
Rationale: Low pH and high PaCO2 indicate respiratory-driven acidosis.
13. In HFpEF, the primary problem is:
A. Weak contractility
3
