NU606 EXAM 1 | ADVANCED PATHOPHYSIOLOGY | REGIS 2026/2027
OBJECTIVE ASSESSMENT - EXAM
NU606/ NU 606 EXAM 1: (2026/2027) ADVANCED
PATHOPHYSIOLOGY REVIEW| QS & AS| GRADE A| 100%
CORRECT (VERIFIED ANSWERS) – REGIS
Graduate Nursing | Advanced Pathophysiology | Master's / Doctoral Level
A+ Verified Passing Score
Edition 2026/2027 80%
COVER PAGE - 1
, SECTIONS COVERED
1. Cellular Injury, Adaptation, and Genetics
2. Fluid, Electrolyte, and Acid-Base Balance
3. Inflammation, Immunity, and Infection
4. Cardiovascular and Hematologic Pathophysiology
5. Respiratory, Renal, and Endocrine Pathophysiology
Exam Information
This examination assesses advanced pathophysiology knowledge at the graduate nursing level.
Each question is worth 1 mark. Total marks: 50. Minimum passing score: 80% (40 correct).
Analyze mechanisms of disease and apply concepts to clinical scenarios. Select the single best answer.
Section 1: Cellular Injury, Adaptation, and Genetics
Q1
Q1. A 58-year-old client with longstanding hypertension undergoes endomyocardial biopsy. Histology shows enlarged myocytes with
hyperchromatic nuclei. The pathologist describes the change as hypertrophy. Which cellular mechanism primarily accounts for this
adaptation?
A. Increase in the number of myocytes through hyperplasia of cardiac stem cells
B. Increase in the size of individual myocytes driven by protein synthesis and cytoskeletal remodeling
C. Replacement of myocytes by collagen through metaplastic transformation
D. Programmed cell death of underperfused myocytes leading to compensatory enlargement of survivors
Correct Answer: B
Rationale: Hypertrophy is an increase in cell size, not cell number. In the heart, pressure overload stimulates signaling pathways that increase protein
synthesis and myocyte size. Hyperplasia is limited in adult cardiac myocytes; metaplasia and apoptosis describe different processes.
Q2
Q2. A client with severe gastroesophageal reflux develops columnar epithelium in the distal esophagus. Biopsy confirms intestinal-type
metaplasia. Which statement best describes the pathophysiologic significance of this finding?
A. Metaplasia is always irreversible and inevitably progresses to invasive carcinoma within months
B. Metaplasia represents a reversible change in cell type that may increase cancer risk if the stimulus persists
C. The finding indicates pure hyperplasia of squamous epithelium without any change in cell type
D. Metaplasia in this location is protective and eliminates the need for further surveillance
Correct Answer: B
Rationale: Metaplasia is a reversible substitution of one differentiated cell type for another, often in response to chronic injury. Persistent stimulus (acid
reflux) raises the risk of dysplasia and adenocarcinoma, which is why surveillance is indicated.
Q3
Q3. During an ischemic stroke, neurons in the core infarct zone undergo irreversible injury. Which biochemical event is most closely linked to
the transition from reversible to irreversible hypoxic injury?
A. Transient decrease in ATP that recovers fully with immediate reperfusion
B. Severe membrane damage with calcium influx, mitochondrial permeability transition, and loss of cellular integrity
C. Mild ribosomal detachment that resolves once oxygen is restored
D. Selective impairment of fatty acid oxidation without effects on oxidative phosphorylation
Correct Answer: B
Rationale: Irreversible cell injury is marked by profound membrane damage, calcium overload, mitochondrial failure, and loss of the ability to restore
homeostasis. Mild ATP depletion and ribosomal changes can be reversible if perfusion is restored promptly.
NU606/ NU 606 EXAM 1: (2026/2027) ADVANCED PATHOPHYSIOLOGY REVIEW| QS & AS| GR... Page 2
OBJECTIVE ASSESSMENT - EXAM
NU606/ NU 606 EXAM 1: (2026/2027) ADVANCED
PATHOPHYSIOLOGY REVIEW| QS & AS| GRADE A| 100%
CORRECT (VERIFIED ANSWERS) – REGIS
Graduate Nursing | Advanced Pathophysiology | Master's / Doctoral Level
A+ Verified Passing Score
Edition 2026/2027 80%
COVER PAGE - 1
, SECTIONS COVERED
1. Cellular Injury, Adaptation, and Genetics
2. Fluid, Electrolyte, and Acid-Base Balance
3. Inflammation, Immunity, and Infection
4. Cardiovascular and Hematologic Pathophysiology
5. Respiratory, Renal, and Endocrine Pathophysiology
Exam Information
This examination assesses advanced pathophysiology knowledge at the graduate nursing level.
Each question is worth 1 mark. Total marks: 50. Minimum passing score: 80% (40 correct).
Analyze mechanisms of disease and apply concepts to clinical scenarios. Select the single best answer.
Section 1: Cellular Injury, Adaptation, and Genetics
Q1
Q1. A 58-year-old client with longstanding hypertension undergoes endomyocardial biopsy. Histology shows enlarged myocytes with
hyperchromatic nuclei. The pathologist describes the change as hypertrophy. Which cellular mechanism primarily accounts for this
adaptation?
A. Increase in the number of myocytes through hyperplasia of cardiac stem cells
B. Increase in the size of individual myocytes driven by protein synthesis and cytoskeletal remodeling
C. Replacement of myocytes by collagen through metaplastic transformation
D. Programmed cell death of underperfused myocytes leading to compensatory enlargement of survivors
Correct Answer: B
Rationale: Hypertrophy is an increase in cell size, not cell number. In the heart, pressure overload stimulates signaling pathways that increase protein
synthesis and myocyte size. Hyperplasia is limited in adult cardiac myocytes; metaplasia and apoptosis describe different processes.
Q2
Q2. A client with severe gastroesophageal reflux develops columnar epithelium in the distal esophagus. Biopsy confirms intestinal-type
metaplasia. Which statement best describes the pathophysiologic significance of this finding?
A. Metaplasia is always irreversible and inevitably progresses to invasive carcinoma within months
B. Metaplasia represents a reversible change in cell type that may increase cancer risk if the stimulus persists
C. The finding indicates pure hyperplasia of squamous epithelium without any change in cell type
D. Metaplasia in this location is protective and eliminates the need for further surveillance
Correct Answer: B
Rationale: Metaplasia is a reversible substitution of one differentiated cell type for another, often in response to chronic injury. Persistent stimulus (acid
reflux) raises the risk of dysplasia and adenocarcinoma, which is why surveillance is indicated.
Q3
Q3. During an ischemic stroke, neurons in the core infarct zone undergo irreversible injury. Which biochemical event is most closely linked to
the transition from reversible to irreversible hypoxic injury?
A. Transient decrease in ATP that recovers fully with immediate reperfusion
B. Severe membrane damage with calcium influx, mitochondrial permeability transition, and loss of cellular integrity
C. Mild ribosomal detachment that resolves once oxygen is restored
D. Selective impairment of fatty acid oxidation without effects on oxidative phosphorylation
Correct Answer: B
Rationale: Irreversible cell injury is marked by profound membrane damage, calcium overload, mitochondrial failure, and loss of the ability to restore
homeostasis. Mild ATP depletion and ribosomal changes can be reversible if perfusion is restored promptly.
NU606/ NU 606 EXAM 1: (2026/2027) ADVANCED PATHOPHYSIOLOGY REVIEW| QS & AS| GR... Page 2
