2026 GRADED A+ UPDATED FOR 2026/2027
WGU D115 OA ADVANCED PATHOPHYSIOLOGY EXAM ALL QUESTIONS
AND 100% CORRECT ANSWERS ALREADY GRADED A+ - LATEST UPDATE
WGU D115 Advanced Pathophysiology
Practice Exam — Q&A + Rationales
1. In heart failure, activation of the renin-angiotensin-aldosterone system (RAAS)
primarily results in:
A. Vasodilation and diuresis
B. Sodium and water retention
C. Decreased blood pressure
D. Decreased preload
Correct Answer: B
Rationale: RAAS increases sodium and water retention to maintain perfusion but worsens fluid
overload in heart failure.
2. Which lab value is most indicative of myocardial injury?
A. Elevated creatinine
B. Elevated troponin I
C. Decreased sodium
D. Elevated bilirubin
Correct Answer: B
Rationale: Troponin I is specific for cardiac muscle injury.
3. A classic sign of a tension pneumothorax is:
A. Hyperresonance on one side
B. Bilateral crackles
C. Tracheal deviation away from affected side
D. Decreased heart rate
Correct Answer: C
Rationale: Air buildup compresses mediastinum, shifting trachea away.
,2026 GRADED A+ UPDATED FOR 2026/2027
4. In chronic obstructive pulmonary disease (COPD), which gas exchange
abnormality is expected?
A. Hypocapnia
B. Hypercapnia
C. High pH
D. Elevated oxygen saturation
Correct Answer: B
Rationale: Impaired ventilation leads to CO₂ retention.
5. Which type of shock is characterized by decreased circulating volume?
A. Cardiogenic
B. Hypovolemic
C. Distributive
D. Obstructive
Correct Answer: B
Rationale: Hypovolemic shock results from blood or fluid loss.
6. The metabolic acidosis seen in diabetic ketoacidosis (DKA) is due to:
A. Hyperventilation
B. Ketone accumulation
C. Hyperglycemia alone
D. Lactic acid only
Correct Answer: B
Rationale: Ketones are acidic, causing metabolic acidosis.
7. A patient with Cushing’s syndrome would most likely exhibit:
A. Weight loss and bradycardia
B. Hyperkalemia and hypotension
C. Truncal obesity and hyperglycemia
D. Cold intolerance
Correct Answer: C
Rationale: Excess cortisol causes central fat deposition and glucose intolerance.
,2026 GRADED A+ UPDATED FOR 2026/2027
8. Which condition is most associated with a “butterfly rash”?
A. Psoriasis
B. Systemic lupus erythematosus (SLE)
C. Contact dermatitis
D. Rosacea
Correct Answer: B
Rationale: SLE presents with malar rash over cheeks and bridge of nose.
9. A hallmark of acute inflammation is:
A. Necrosis
B. Edema and neutrophil infiltration
C. Fibrosis
D. Increased oxygen saturation
Correct Answer: B
Rationale: Inflammation causes increased vascular permeability and neutrophil influx.
10. Which electrolyte imbalance can cause peaked T waves on ECG?
A. Hypokalemia
B. Hyperkalemia
C. Hypocalcemia
D. Hyponatremia
Correct Answer: B
Rationale: High potassium alters cardiac conduction.
11. In renal failure, serum creatinine is:
A. Decreased
B. Elevated
C. Unchanged
D. Variable with no pattern
Correct Answer: B
Rationale: Impaired filtration increases blood creatinine.
, 2026 GRADED A+ UPDATED FOR 2026/2027
12. Pneumonia in the alveoli initially causes:
A. Pulmonary fibrosis
B. Alveolar consolidation
C. Emphysema
D. Pleural effusion
Correct Answer: B
Rationale: Inflammation and exudate fill alveoli, impairing gas exchange.
13. The anemia of chronic disease is typically:
A. Microcytic and hypochromic
B. Macrocytic
C. Normocytic, normochromic
D. Hemolytic
Correct Answer: C
Rationale: Inflammation blunts iron utilization → normocytic anemia.
14. Graves’ disease is associated with:
A. Hypothyroidism only
B. Hyperthyroidism
C. Hyperparathyroidism
D. Adrenal insufficiency
Correct Answer: B
Rationale: Autoantibodies stimulate TSH receptors → excess thyroid hormone.
15. The primary mechanism of shock in sepsis is:
A. Hypovolemia
B. Distributive vasodilation
C. Cardiac pump failure
D. Obstruction
Correct Answer: B
Rationale: Vasodilation and capillary leak reduce perfusion.
WGU D115 OA ADVANCED PATHOPHYSIOLOGY EXAM ALL QUESTIONS
AND 100% CORRECT ANSWERS ALREADY GRADED A+ - LATEST UPDATE
WGU D115 Advanced Pathophysiology
Practice Exam — Q&A + Rationales
1. In heart failure, activation of the renin-angiotensin-aldosterone system (RAAS)
primarily results in:
A. Vasodilation and diuresis
B. Sodium and water retention
C. Decreased blood pressure
D. Decreased preload
Correct Answer: B
Rationale: RAAS increases sodium and water retention to maintain perfusion but worsens fluid
overload in heart failure.
2. Which lab value is most indicative of myocardial injury?
A. Elevated creatinine
B. Elevated troponin I
C. Decreased sodium
D. Elevated bilirubin
Correct Answer: B
Rationale: Troponin I is specific for cardiac muscle injury.
3. A classic sign of a tension pneumothorax is:
A. Hyperresonance on one side
B. Bilateral crackles
C. Tracheal deviation away from affected side
D. Decreased heart rate
Correct Answer: C
Rationale: Air buildup compresses mediastinum, shifting trachea away.
,2026 GRADED A+ UPDATED FOR 2026/2027
4. In chronic obstructive pulmonary disease (COPD), which gas exchange
abnormality is expected?
A. Hypocapnia
B. Hypercapnia
C. High pH
D. Elevated oxygen saturation
Correct Answer: B
Rationale: Impaired ventilation leads to CO₂ retention.
5. Which type of shock is characterized by decreased circulating volume?
A. Cardiogenic
B. Hypovolemic
C. Distributive
D. Obstructive
Correct Answer: B
Rationale: Hypovolemic shock results from blood or fluid loss.
6. The metabolic acidosis seen in diabetic ketoacidosis (DKA) is due to:
A. Hyperventilation
B. Ketone accumulation
C. Hyperglycemia alone
D. Lactic acid only
Correct Answer: B
Rationale: Ketones are acidic, causing metabolic acidosis.
7. A patient with Cushing’s syndrome would most likely exhibit:
A. Weight loss and bradycardia
B. Hyperkalemia and hypotension
C. Truncal obesity and hyperglycemia
D. Cold intolerance
Correct Answer: C
Rationale: Excess cortisol causes central fat deposition and glucose intolerance.
,2026 GRADED A+ UPDATED FOR 2026/2027
8. Which condition is most associated with a “butterfly rash”?
A. Psoriasis
B. Systemic lupus erythematosus (SLE)
C. Contact dermatitis
D. Rosacea
Correct Answer: B
Rationale: SLE presents with malar rash over cheeks and bridge of nose.
9. A hallmark of acute inflammation is:
A. Necrosis
B. Edema and neutrophil infiltration
C. Fibrosis
D. Increased oxygen saturation
Correct Answer: B
Rationale: Inflammation causes increased vascular permeability and neutrophil influx.
10. Which electrolyte imbalance can cause peaked T waves on ECG?
A. Hypokalemia
B. Hyperkalemia
C. Hypocalcemia
D. Hyponatremia
Correct Answer: B
Rationale: High potassium alters cardiac conduction.
11. In renal failure, serum creatinine is:
A. Decreased
B. Elevated
C. Unchanged
D. Variable with no pattern
Correct Answer: B
Rationale: Impaired filtration increases blood creatinine.
, 2026 GRADED A+ UPDATED FOR 2026/2027
12. Pneumonia in the alveoli initially causes:
A. Pulmonary fibrosis
B. Alveolar consolidation
C. Emphysema
D. Pleural effusion
Correct Answer: B
Rationale: Inflammation and exudate fill alveoli, impairing gas exchange.
13. The anemia of chronic disease is typically:
A. Microcytic and hypochromic
B. Macrocytic
C. Normocytic, normochromic
D. Hemolytic
Correct Answer: C
Rationale: Inflammation blunts iron utilization → normocytic anemia.
14. Graves’ disease is associated with:
A. Hypothyroidism only
B. Hyperthyroidism
C. Hyperparathyroidism
D. Adrenal insufficiency
Correct Answer: B
Rationale: Autoantibodies stimulate TSH receptors → excess thyroid hormone.
15. The primary mechanism of shock in sepsis is:
A. Hypovolemia
B. Distributive vasodilation
C. Cardiac pump failure
D. Obstruction
Correct Answer: B
Rationale: Vasodilation and capillary leak reduce perfusion.
