WGU D236 PATHOPHYSIOLOGY EXAM QUESTIONS
AND ANSWERS RATED A+ ASSURED SUCCESS NEW
UPDATE 2026
Comprehensive Practice Exam for WGU D236 Pathophysiology (Original Study Guide)
Table of Contents
Section Contents
I Introduction & Exam Instructions
II Core Concepts (Questions 1–30)
III Applied Clinical Scenarios (Part 2)
IV Short-Answer Questions (Part 3)
V Comprehensive Case Studies (Part 4)
VI Complete Answer Key & Rationales
Introduction
Instructions:
• This is an original practice examination designed to help prepare for WGU D236
Pathophysiology.
• Choose the best answer for each multiple-choice question.
• Rationales are provided immediately after each question for learning purposes.
Section II – Core Concepts (Questions 1–30)
1. Which cellular adaptation is characterized by an increase in cell size?
A. Hyperplasia
B. Atrophy
C. Hypertrophy
D. Metaplasia
Answer: C. Hypertrophy
,Rationale: Hypertrophy is an increase in the size of existing cells, often in response to increased
workload, such as enlargement of skeletal muscles after resistance training.
2. Which process is considered programmed cell death?
A. Necrosis
B. Apoptosis
C. Gangrene
D. Autolysis
Answer: B. Apoptosis
Rationale: Apoptosis is an organized, energy-dependent process that removes damaged or
unnecessary cells without triggering significant inflammation.
3. Which electrolyte is the primary intracellular cation?
A. Sodium
B. Calcium
C. Potassium
D. Chloride
Answer: C. Potassium
Rationale: Potassium is the major intracellular cation and is essential for normal nerve impulse
transmission and muscle contraction.
4. Which acid-base disorder is commonly caused by prolonged vomiting?
A. Metabolic acidosis
B. Respiratory acidosis
C. Metabolic alkalosis
D. Respiratory alkalosis
Answer: C. Metabolic alkalosis
Rationale: Vomiting causes loss of hydrochloric acid from the stomach, increasing blood pH and
leading to metabolic alkalosis.
5. Histamine released during inflammation primarily causes:
, A. Vasoconstriction
B. Vasodilation
C. Decreased capillary permeability
D. Platelet destruction
Answer: B. Vasodilation
Rationale: Histamine increases blood flow and capillary permeability, allowing immune cells to
reach injured tissue.
6. Which white blood cell is most associated with allergic reactions?
A. Neutrophil
B. Basophil
C. Monocyte
D. Lymphocyte
Answer: B. Basophil
Rationale: Basophils release histamine and other inflammatory mediators during allergic
responses.
7. A patient with HIV primarily has impairment of which immune cells?
A. B lymphocytes
B. CD4+ T helper cells
C. Neutrophils
D. Eosinophils
Answer: B. CD4+ T helper cells
Rationale: HIV targets CD4+ T cells, weakening adaptive immunity.
8. Which type of immunity results from vaccination?
A. Natural passive
B. Artificial active
C. Natural active
D. Artificial passive
Answer: B. Artificial active
AND ANSWERS RATED A+ ASSURED SUCCESS NEW
UPDATE 2026
Comprehensive Practice Exam for WGU D236 Pathophysiology (Original Study Guide)
Table of Contents
Section Contents
I Introduction & Exam Instructions
II Core Concepts (Questions 1–30)
III Applied Clinical Scenarios (Part 2)
IV Short-Answer Questions (Part 3)
V Comprehensive Case Studies (Part 4)
VI Complete Answer Key & Rationales
Introduction
Instructions:
• This is an original practice examination designed to help prepare for WGU D236
Pathophysiology.
• Choose the best answer for each multiple-choice question.
• Rationales are provided immediately after each question for learning purposes.
Section II – Core Concepts (Questions 1–30)
1. Which cellular adaptation is characterized by an increase in cell size?
A. Hyperplasia
B. Atrophy
C. Hypertrophy
D. Metaplasia
Answer: C. Hypertrophy
,Rationale: Hypertrophy is an increase in the size of existing cells, often in response to increased
workload, such as enlargement of skeletal muscles after resistance training.
2. Which process is considered programmed cell death?
A. Necrosis
B. Apoptosis
C. Gangrene
D. Autolysis
Answer: B. Apoptosis
Rationale: Apoptosis is an organized, energy-dependent process that removes damaged or
unnecessary cells without triggering significant inflammation.
3. Which electrolyte is the primary intracellular cation?
A. Sodium
B. Calcium
C. Potassium
D. Chloride
Answer: C. Potassium
Rationale: Potassium is the major intracellular cation and is essential for normal nerve impulse
transmission and muscle contraction.
4. Which acid-base disorder is commonly caused by prolonged vomiting?
A. Metabolic acidosis
B. Respiratory acidosis
C. Metabolic alkalosis
D. Respiratory alkalosis
Answer: C. Metabolic alkalosis
Rationale: Vomiting causes loss of hydrochloric acid from the stomach, increasing blood pH and
leading to metabolic alkalosis.
5. Histamine released during inflammation primarily causes:
, A. Vasoconstriction
B. Vasodilation
C. Decreased capillary permeability
D. Platelet destruction
Answer: B. Vasodilation
Rationale: Histamine increases blood flow and capillary permeability, allowing immune cells to
reach injured tissue.
6. Which white blood cell is most associated with allergic reactions?
A. Neutrophil
B. Basophil
C. Monocyte
D. Lymphocyte
Answer: B. Basophil
Rationale: Basophils release histamine and other inflammatory mediators during allergic
responses.
7. A patient with HIV primarily has impairment of which immune cells?
A. B lymphocytes
B. CD4+ T helper cells
C. Neutrophils
D. Eosinophils
Answer: B. CD4+ T helper cells
Rationale: HIV targets CD4+ T cells, weakening adaptive immunity.
8. Which type of immunity results from vaccination?
A. Natural passive
B. Artificial active
C. Natural active
D. Artificial passive
Answer: B. Artificial active
