WGU D236 PATHOPHYSIOLOGY
FINAL EXAM NEW VERSION MARCH
REAL D236 FINAL QUESTIONS WITH
CORRECT ANSWERS GRADED A+
CORE DOMAINS
• Cellular Adaptation, Injury, and Death
• Inflammation and Immunity
• Fluid, Electrolyte, and Acid-Base Disorders
• Cardiovascular Pathophysiology
• Respiratory Pathophysiology
• Renal and Urinary Pathophysiology
• Endocrine Pathophysiology
• Gastrointestinal and Hepatic Pathophysiology
• Neurological Pathophysiology
• Hematologic and Neoplastic Pathophysiology
INTRODUCTION
The WGU D236 Pathophysiology Objective Assessment evaluates competency
in the physiological mechanisms underlying human disease. This
comprehensive examination assesses knowledge of cellular adaptation,
inflammation, immunity, fluid and electrolyte balance, acid-base regulation,
and systemic pathophysiology across major body systems. The exam employs
,multiple-choice and scenario-based questions requiring clinical judgment and
application of pathophysiological principles. Candidates must demonstrate
understanding of disease processes, clinical manifestations, diagnostic
findings, and compensatory mechanisms. Competency in this course supports
the development of clinical reasoning essential for nursing practice and
evidence-based patient care.
SECTION ONE: QUESTIONS 1–100
1. A patient's muscle mass decreased after their leg was immobilized in
a cast for six weeks. What is this cellular adaptation called?
A. Hypertrophy
B. Hyperplasia
C. Metaplasia
D. Atrophy
RATIONALE: Atrophy is a decrease in cell size and metabolic activity
resulting from reduced workload, disuse, or diminished blood supply.
Immobilization leads to skeletal muscle atrophy.
2. Which type of necrosis is the most common pattern following
ischemic injury in solid organs such as the heart, kidney, and liver?
A. Liquefactive necrosis
B. Coagulative necrosis
C. Caseous necrosis
D. Fat necrosis
RATIONALE: Coagulative necrosis is the classic pattern of ischemic injury
in solid organs. Protein denaturation preserves tissue architecture with
hypereosinophilic cytoplasm and loss of nuclei.
,3. A patient with chronic obstructive pulmonary disease develops right-
sided heart failure. Which cellular adaptation best explains the
increased right ventricular mass?
A. Hyperplasia
B. Hypertrophy
C. Metaplasia
D. Dysplasia
RATIONALE: Chronic pulmonary hypertension increases the workload on
the right ventricle, causing compensatory hypertrophy of the right ventricular
myocardium in response to increased afterload.
4. What characterizes apoptosis compared to necrosis?
A. Cell membrane rupture with inflammation
B. Programmed cell death without inflammatory response
C. Tissue liquefaction with abscess formation
D. Ischemic lysis with enzyme release
RATIONALE: Apoptosis is a controlled, energy-dependent process of
programmed cell death characterized by DNA fragmentation, cell shrinkage,
and preserved membrane integrity without triggering inflammation.
5. Which type of necrosis is characterized by a cheese-like appearance
and is commonly associated with tuberculosis?
A. Coagulative necrosis
B. Liquefactive necrosis
C. Caseous necrosis
D. Fibrinoid necrosis
, RATIONALE: Caseous necrosis is characterized by a soft, granular, white
mass with a cheese-like appearance. It is the classic pattern seen in
tuberculosis and some fungal infections.
6. Cellular swelling (hydropic change) results from failure of which
pump?
A. Calcium ATPase pump
B. Sodium-potassium ATPase pump
C. Proton pump
D. Glucose transporter
RATIONALE: Ischemia depletes ATP, causing failure of the Na⁺/K⁺ ATPase
pump. Sodium accumulates intracellularly, followed by water influx, resulting
in cellular swelling—the earliest manifestation of reversible cell injury.
7. A Pap test result showing mild dysplasia should be explained to a
patient as:
A. Normal finding requiring no follow-up
B. Abnormal cellular changes that may be reversible
C. Invasive cancer requiring immediate treatment
D. A type of metaplasia that is always benign
RATIONALE: Dysplasia involves abnormal cellular changes including
variation in size, shape, and organization. It is not cancer but is a precursor
lesion that may regress if the causative stimulus is removed.
8. Which process is the reversible replacement of one differentiated
cell type with another?
FINAL EXAM NEW VERSION MARCH
REAL D236 FINAL QUESTIONS WITH
CORRECT ANSWERS GRADED A+
CORE DOMAINS
• Cellular Adaptation, Injury, and Death
• Inflammation and Immunity
• Fluid, Electrolyte, and Acid-Base Disorders
• Cardiovascular Pathophysiology
• Respiratory Pathophysiology
• Renal and Urinary Pathophysiology
• Endocrine Pathophysiology
• Gastrointestinal and Hepatic Pathophysiology
• Neurological Pathophysiology
• Hematologic and Neoplastic Pathophysiology
INTRODUCTION
The WGU D236 Pathophysiology Objective Assessment evaluates competency
in the physiological mechanisms underlying human disease. This
comprehensive examination assesses knowledge of cellular adaptation,
inflammation, immunity, fluid and electrolyte balance, acid-base regulation,
and systemic pathophysiology across major body systems. The exam employs
,multiple-choice and scenario-based questions requiring clinical judgment and
application of pathophysiological principles. Candidates must demonstrate
understanding of disease processes, clinical manifestations, diagnostic
findings, and compensatory mechanisms. Competency in this course supports
the development of clinical reasoning essential for nursing practice and
evidence-based patient care.
SECTION ONE: QUESTIONS 1–100
1. A patient's muscle mass decreased after their leg was immobilized in
a cast for six weeks. What is this cellular adaptation called?
A. Hypertrophy
B. Hyperplasia
C. Metaplasia
D. Atrophy
RATIONALE: Atrophy is a decrease in cell size and metabolic activity
resulting from reduced workload, disuse, or diminished blood supply.
Immobilization leads to skeletal muscle atrophy.
2. Which type of necrosis is the most common pattern following
ischemic injury in solid organs such as the heart, kidney, and liver?
A. Liquefactive necrosis
B. Coagulative necrosis
C. Caseous necrosis
D. Fat necrosis
RATIONALE: Coagulative necrosis is the classic pattern of ischemic injury
in solid organs. Protein denaturation preserves tissue architecture with
hypereosinophilic cytoplasm and loss of nuclei.
,3. A patient with chronic obstructive pulmonary disease develops right-
sided heart failure. Which cellular adaptation best explains the
increased right ventricular mass?
A. Hyperplasia
B. Hypertrophy
C. Metaplasia
D. Dysplasia
RATIONALE: Chronic pulmonary hypertension increases the workload on
the right ventricle, causing compensatory hypertrophy of the right ventricular
myocardium in response to increased afterload.
4. What characterizes apoptosis compared to necrosis?
A. Cell membrane rupture with inflammation
B. Programmed cell death without inflammatory response
C. Tissue liquefaction with abscess formation
D. Ischemic lysis with enzyme release
RATIONALE: Apoptosis is a controlled, energy-dependent process of
programmed cell death characterized by DNA fragmentation, cell shrinkage,
and preserved membrane integrity without triggering inflammation.
5. Which type of necrosis is characterized by a cheese-like appearance
and is commonly associated with tuberculosis?
A. Coagulative necrosis
B. Liquefactive necrosis
C. Caseous necrosis
D. Fibrinoid necrosis
, RATIONALE: Caseous necrosis is characterized by a soft, granular, white
mass with a cheese-like appearance. It is the classic pattern seen in
tuberculosis and some fungal infections.
6. Cellular swelling (hydropic change) results from failure of which
pump?
A. Calcium ATPase pump
B. Sodium-potassium ATPase pump
C. Proton pump
D. Glucose transporter
RATIONALE: Ischemia depletes ATP, causing failure of the Na⁺/K⁺ ATPase
pump. Sodium accumulates intracellularly, followed by water influx, resulting
in cellular swelling—the earliest manifestation of reversible cell injury.
7. A Pap test result showing mild dysplasia should be explained to a
patient as:
A. Normal finding requiring no follow-up
B. Abnormal cellular changes that may be reversible
C. Invasive cancer requiring immediate treatment
D. A type of metaplasia that is always benign
RATIONALE: Dysplasia involves abnormal cellular changes including
variation in size, shape, and organization. It is not cancer but is a precursor
lesion that may regress if the causative stimulus is removed.
8. Which process is the reversible replacement of one differentiated
cell type with another?
