NUR 631 Advanced Physiology and Pathophysiology
Midterm and Final Exam: (Latest 2026/2027 )
Questions & Answers with Detailed Rationales | Grade
A
SUBTITLE:
70 Exam Questions with Answers & Detailed Rationales
PREPARED FOR:
NUR 631 Advanced Physiology and Pathophysiology - Grand Canyon University
DOCUMENT INCLUDES:
● Exam-style questions
● Correct answers
● Detailed rationales
● Key topics covered
TOPICS COVERED:
● Cellular Adaptation & Injury
● Inflammation & Tissue Repair
● Fluid & Electrolyte Imbalances
● Acid-Base Disorders
● Genetics & Genomics
● Immunology & Hypersensitivity
● Neoplasia
● Cardiovascular Pathophysiology
● Respiratory Pathophysiology
, ● Renal Pathophysiology
● Gastrointestinal Pathophysiology
● Endocrine Pathophysiology
● Neurological Pathophysiology
● Hematologic Disorders
● Multisystem Integration & Clinical Application
PURPOSE:
This comprehensive test bank is designed to help NUR 631 students master advanced
physiological and pathophysiological concepts, reinforce clinical reasoning, and
confidently prepare for midterm and final examinations.
SECTION 1: Cellular Adaptation & Injury
Question 1
A 58-year-old male with a 40-pack-year smoking history presents with chronic cough
and dyspnea. Histologic examination of his bronchial epithelium reveals a
transformation from pseudostratified ciliated columnar epithelium to stratified
squamous epithelium. This cellular adaptation is best described as:
A. Hypertrophy
B. Hyperplasia
C. Metaplasia
D. Dysplasia
Correct Answer: C
,Rationale: Metaplasia is the reversible replacement of one differentiated cell type with
another differentiated cell type, typically in response to chronic irritation or stress. In
this case, chronic smoking irritates the bronchial epithelium, causing the normal
pseudostratified ciliated columnar epithelium to be replaced by stratified squamous
epithelium (squamous metaplasia). This is an adaptive response that provides better
protection against irritation but sacrifices mucociliary clearance. Hypertrophy (A) refers
to an increase in cell size, not a change in cell type. Hyperplasia (B) refers to an increase
in cell number. Dysplasia (D) refers to disordered, dysfunctional cellular growth that is
often precancerous; while smoking can lead to dysplasia, the description specifically
indicates a change from one normal cell type to another, which defines metaplasia.
Question 2
A 72-year-old female with chronic hypertension has an echocardiogram showing left
ventricular wall thickness of 14 mm (normal: 6–10 mm). The cardiomyocytes
demonstrate enlarged nuclei and increased cytoplasmic volume. This cellular change is
classified as:
A. Physiologic hypertrophy
B. Pathologic hypertrophy
C. Physiologic hyperplasia
D. Pathologic atrophy
Correct Answer: B
Rationale: Pathologic hypertrophy occurs when cells increase in size in response to
abnormal stress or demand. In chronic hypertension, the left ventricle must pump
against elevated systemic vascular resistance, causing the cardiomyocytes to enlarge
, (increase in size, not number) to generate greater contractile force. This is pathologic
because the stimulus (hypertension) is abnormal and sustained, and if uncorrected, can
lead to decompensated heart failure. Physiologic hypertrophy (A) occurs in response to
normal demands, such as exercise. Physiologic hyperplasia (C) is incorrect because
cardiomyocytes are terminally differentiated cells capable of hypertrophy but not
hyperplasia in adults. Pathologic atrophy (D) refers to a decrease in cell size, which is
the opposite of what is described.
Question 3
A patient presents with severe ischemia to the lower extremity following arterial
thrombosis. Within 24 hours, the affected tissue demonstrates cytoplasmic
eosinophilia, nuclear pyknosis, karyorrhexis, and karyolysis. These findings are
characteristic of:
A. Apoptosis
B. Coagulative necrosis
C. Liquefactive necrosis
D. Caseous necrosis
Correct Answer: B
Rationale: Coagulative necrosis is the most common pattern of ischemic cell death in
solid organs (except the brain) and is characterized by the preservation of tissue
architecture for several days, with cytoplasmic eosinophilia and nuclear changes
including pyknosis (nuclear shrinkage and increased basophilia), karyorrhexis (nuclear
fragmentation), and karyolysis (nuclear dissolution). This pattern results from
denaturation of structural and enzymatic proteins, which prevents autolysis and
Midterm and Final Exam: (Latest 2026/2027 )
Questions & Answers with Detailed Rationales | Grade
A
SUBTITLE:
70 Exam Questions with Answers & Detailed Rationales
PREPARED FOR:
NUR 631 Advanced Physiology and Pathophysiology - Grand Canyon University
DOCUMENT INCLUDES:
● Exam-style questions
● Correct answers
● Detailed rationales
● Key topics covered
TOPICS COVERED:
● Cellular Adaptation & Injury
● Inflammation & Tissue Repair
● Fluid & Electrolyte Imbalances
● Acid-Base Disorders
● Genetics & Genomics
● Immunology & Hypersensitivity
● Neoplasia
● Cardiovascular Pathophysiology
● Respiratory Pathophysiology
, ● Renal Pathophysiology
● Gastrointestinal Pathophysiology
● Endocrine Pathophysiology
● Neurological Pathophysiology
● Hematologic Disorders
● Multisystem Integration & Clinical Application
PURPOSE:
This comprehensive test bank is designed to help NUR 631 students master advanced
physiological and pathophysiological concepts, reinforce clinical reasoning, and
confidently prepare for midterm and final examinations.
SECTION 1: Cellular Adaptation & Injury
Question 1
A 58-year-old male with a 40-pack-year smoking history presents with chronic cough
and dyspnea. Histologic examination of his bronchial epithelium reveals a
transformation from pseudostratified ciliated columnar epithelium to stratified
squamous epithelium. This cellular adaptation is best described as:
A. Hypertrophy
B. Hyperplasia
C. Metaplasia
D. Dysplasia
Correct Answer: C
,Rationale: Metaplasia is the reversible replacement of one differentiated cell type with
another differentiated cell type, typically in response to chronic irritation or stress. In
this case, chronic smoking irritates the bronchial epithelium, causing the normal
pseudostratified ciliated columnar epithelium to be replaced by stratified squamous
epithelium (squamous metaplasia). This is an adaptive response that provides better
protection against irritation but sacrifices mucociliary clearance. Hypertrophy (A) refers
to an increase in cell size, not a change in cell type. Hyperplasia (B) refers to an increase
in cell number. Dysplasia (D) refers to disordered, dysfunctional cellular growth that is
often precancerous; while smoking can lead to dysplasia, the description specifically
indicates a change from one normal cell type to another, which defines metaplasia.
Question 2
A 72-year-old female with chronic hypertension has an echocardiogram showing left
ventricular wall thickness of 14 mm (normal: 6–10 mm). The cardiomyocytes
demonstrate enlarged nuclei and increased cytoplasmic volume. This cellular change is
classified as:
A. Physiologic hypertrophy
B. Pathologic hypertrophy
C. Physiologic hyperplasia
D. Pathologic atrophy
Correct Answer: B
Rationale: Pathologic hypertrophy occurs when cells increase in size in response to
abnormal stress or demand. In chronic hypertension, the left ventricle must pump
against elevated systemic vascular resistance, causing the cardiomyocytes to enlarge
, (increase in size, not number) to generate greater contractile force. This is pathologic
because the stimulus (hypertension) is abnormal and sustained, and if uncorrected, can
lead to decompensated heart failure. Physiologic hypertrophy (A) occurs in response to
normal demands, such as exercise. Physiologic hyperplasia (C) is incorrect because
cardiomyocytes are terminally differentiated cells capable of hypertrophy but not
hyperplasia in adults. Pathologic atrophy (D) refers to a decrease in cell size, which is
the opposite of what is described.
Question 3
A patient presents with severe ischemia to the lower extremity following arterial
thrombosis. Within 24 hours, the affected tissue demonstrates cytoplasmic
eosinophilia, nuclear pyknosis, karyorrhexis, and karyolysis. These findings are
characteristic of:
A. Apoptosis
B. Coagulative necrosis
C. Liquefactive necrosis
D. Caseous necrosis
Correct Answer: B
Rationale: Coagulative necrosis is the most common pattern of ischemic cell death in
solid organs (except the brain) and is characterized by the preservation of tissue
architecture for several days, with cytoplasmic eosinophilia and nuclear changes
including pyknosis (nuclear shrinkage and increased basophilia), karyorrhexis (nuclear
fragmentation), and karyolysis (nuclear dissolution). This pattern results from
denaturation of structural and enzymatic proteins, which prevents autolysis and
