WGU D236 PATHOPHYSIOLOGY STUDY
GUIDE TEST BANK EXAM 2026
What is the primary goal of studying pathophysiology?
A. To diagnose diseases
B. To understand how diseases alter normal body function
C. To prescribe medications
D. To perform physical assessments
Correct Answer: B
Rationale:
Pathophysiology focuses on understanding how normal physiological processes are
disrupted by disease or injury. Diagnosis and treatment decisions rely on this
knowledge, but they are not the primary goal of pathophysiology itself.
Which term describes the body’s ability to maintain a stable internal
environment?
A. Adaptation
B. Homeostasis
C. Compensation
D. Regulation
Correct Answer: B
Rationale:
Homeostasis refers to the body’s ability to maintain internal balance, such as
temperature, pH, and electrolyte levels, despite external changes.
,WGU D236 PATHOPHYSIOLOGY STUDY
GUIDE TEST BANK EXAM 2026
A negative feedback mechanism primarily functions to:
A. Amplify a physiological response
B. Prevent disease
C. Reverse a change to maintain balance
D. Initiate inflammation
Correct Answer: C
Rationale:
Negative feedback mechanisms work to counteract deviations from normal values,
helping return the body to homeostasis (e.g., temperature regulation).
Which process occurs when the body temporarily adjusts to stress but cannot
sustain it long term?
A. Adaptation
B. Maladaptation
C. Compensation
D. Degeneration
Correct Answer: C
Rationale:
Compensation is a short-term adjustment the body makes in response to stress or
disease. Over time, compensatory mechanisms may fail if the underlying problem is not
corrected.
What is the most common cause of cellular injury?
,WGU D236 PATHOPHYSIOLOGY STUDY
GUIDE TEST BANK EXAM 2026
A. Genetic mutation
B. Infection
C. Hypoxia
D. Autoimmune response
Correct Answer: C
Rationale:
Hypoxia (lack of oxygen) is the most frequent cause of cell injury, often resulting from
ischemia, respiratory disorders, or reduced blood flow.
Which type of cell injury is reversible if the stressor is removed?
A. Necrosis
B. Apoptosis
C. Reversible cell injury
D. Autolysis
Correct Answer: C
Rationale:
Reversible cell injury occurs when damage is mild or temporary, allowing cells to
recover once normal conditions are restored.
Apoptosis is best described as:
A. Accidental cell death
B. Inflammatory cell destruction
C. Programmed cell death
D. Cellular swelling
, WGU D236 PATHOPHYSIOLOGY STUDY
GUIDE TEST BANK EXAM 2026
Correct Answer: C
Rationale:
Apoptosis is a controlled, programmed process of cell death that does not trigger
inflammation and is essential for normal tissue development.
Which electrolyte imbalance is most likely to cause cardiac arrhythmias?
A. Hyponatremia
B. Hypercalcemia
C. Hypokalemia
D. Hypophosphatemia
Correct Answer: C
Rationale:
Potassium plays a critical role in cardiac electrical activity. Low potassium levels can
disrupt heart rhythms and lead to arrhythmias.
Inflammation is primarily intended to:
A. Destroy healthy tissue
B. Promote scar formation
C. Eliminate the cause of injury
D. Prevent immune responses
Correct Answer: C
GUIDE TEST BANK EXAM 2026
What is the primary goal of studying pathophysiology?
A. To diagnose diseases
B. To understand how diseases alter normal body function
C. To prescribe medications
D. To perform physical assessments
Correct Answer: B
Rationale:
Pathophysiology focuses on understanding how normal physiological processes are
disrupted by disease or injury. Diagnosis and treatment decisions rely on this
knowledge, but they are not the primary goal of pathophysiology itself.
Which term describes the body’s ability to maintain a stable internal
environment?
A. Adaptation
B. Homeostasis
C. Compensation
D. Regulation
Correct Answer: B
Rationale:
Homeostasis refers to the body’s ability to maintain internal balance, such as
temperature, pH, and electrolyte levels, despite external changes.
,WGU D236 PATHOPHYSIOLOGY STUDY
GUIDE TEST BANK EXAM 2026
A negative feedback mechanism primarily functions to:
A. Amplify a physiological response
B. Prevent disease
C. Reverse a change to maintain balance
D. Initiate inflammation
Correct Answer: C
Rationale:
Negative feedback mechanisms work to counteract deviations from normal values,
helping return the body to homeostasis (e.g., temperature regulation).
Which process occurs when the body temporarily adjusts to stress but cannot
sustain it long term?
A. Adaptation
B. Maladaptation
C. Compensation
D. Degeneration
Correct Answer: C
Rationale:
Compensation is a short-term adjustment the body makes in response to stress or
disease. Over time, compensatory mechanisms may fail if the underlying problem is not
corrected.
What is the most common cause of cellular injury?
,WGU D236 PATHOPHYSIOLOGY STUDY
GUIDE TEST BANK EXAM 2026
A. Genetic mutation
B. Infection
C. Hypoxia
D. Autoimmune response
Correct Answer: C
Rationale:
Hypoxia (lack of oxygen) is the most frequent cause of cell injury, often resulting from
ischemia, respiratory disorders, or reduced blood flow.
Which type of cell injury is reversible if the stressor is removed?
A. Necrosis
B. Apoptosis
C. Reversible cell injury
D. Autolysis
Correct Answer: C
Rationale:
Reversible cell injury occurs when damage is mild or temporary, allowing cells to
recover once normal conditions are restored.
Apoptosis is best described as:
A. Accidental cell death
B. Inflammatory cell destruction
C. Programmed cell death
D. Cellular swelling
, WGU D236 PATHOPHYSIOLOGY STUDY
GUIDE TEST BANK EXAM 2026
Correct Answer: C
Rationale:
Apoptosis is a controlled, programmed process of cell death that does not trigger
inflammation and is essential for normal tissue development.
Which electrolyte imbalance is most likely to cause cardiac arrhythmias?
A. Hyponatremia
B. Hypercalcemia
C. Hypokalemia
D. Hypophosphatemia
Correct Answer: C
Rationale:
Potassium plays a critical role in cardiac electrical activity. Low potassium levels can
disrupt heart rhythms and lead to arrhythmias.
Inflammation is primarily intended to:
A. Destroy healthy tissue
B. Promote scar formation
C. Eliminate the cause of injury
D. Prevent immune responses
Correct Answer: C
