WGU D115 ADVANCED PATHOPHYSIOLOGY EXAM 2026/2027 |
COMPLETE 200-QUESTION TEST BANK WITH DETAILED
RATIONALES & STUDY GUIDE
1. A patient with long-standing hypertension develops thickening of
the left ventricular wall. Which cellular adaptation best explains this
change?
A. Hyperplasia
B. Metaplasia
C. Hypertrophy
D. Dysplasia
Answer: C. Hypertrophy
Rationale: Hypertrophy is an increase in cell size in response to
increased workload. Cardiac muscle cells undergo hypertrophy because
they have limited ability to undergo hyperplasia.
2. Prolonged myocardial ischemia resulting in irreversible injury and
cell membrane rupture is best described as which type of cellular
death?
A. Apoptosis
B. Necrosis
C. Atrophy
D. Autophagy
Answer: B. Necrosis
Rationale: Necrosis results from irreversible cellular injury and is
characterized by cell swelling, membrane rupture, and inflammation.
,3. A patient develops edema after a significant decrease in serum
albumin levels. Which mechanism contributes most directly to this
edema formation?
A. Increased plasma oncotic pressure
B. Decreased capillary permeability
C. Reduced plasma oncotic pressure causing fluid movement into
tissues
D. Increased sodium excretion
Answer: C. Reduced plasma oncotic pressure causing fluid movement
into tissues
Rationale: Albumin maintains oncotic pressure. Low albumin levels
allow fluid to shift from the vascular space into interstitial tissues.
4. A patient with metabolic acidosis develops rapid, deep respirations.
This compensatory response occurs because the respiratory system is
attempting to:
A. Increase carbon dioxide retention
B. Decrease oxygen delivery
C. Decrease carbon dioxide levels by increasing ventilation
D. Increase bicarbonate reabsorption
Answer: C. Decrease carbon dioxide levels by increasing ventilation
Rationale: In metabolic acidosis, the respiratory system compensates by
increasing the rate and depth of respirations (Kussmaul breathing) to
blow off carbon dioxide and raise pH.
5. Which immunoglobulin class is primarily associated with allergic
reactions and parasitic infections?
A. IgG
B. IgA
C. IgM
,D. IgE
Answer: D. IgE
Rationale: IgE is the immunoglobulin responsible for type I
hypersensitivity reactions and defense against parasitic infections.
6. A patient with chronic kidney disease develops hypocalcemia.
Which secondary condition is most likely to develop as a result?
A. Primary hyperparathyroidism
B. Secondary hyperparathyroidism
C. Hypoparathyroidism
D. Hyperaldosteronism
Answer: B. Secondary hyperparathyroidism
Rationale: In chronic kidney disease, decreased renal production of
calcitriol leads to hypocalcemia, which stimulates parathyroid hormone
secretion, resulting in secondary hyperparathyroidism.
7. The FNP understands that the most common cause of
hyperthyroidism in a young adult female is:
A. Thyroid cancer
B. Pituitary adenoma
C. Graves' disease
D. Postpartum thyroiditis
Answer: C. Graves' disease
Rationale: Graves' disease, an autoimmune condition also known as
diffuse toxic goiter, is the most common cause of hyperthyroidism,
accounting for 60% to 80% of cases.
8. A patient with type 2 diabetes has elevated triglycerides >150
mg/dL. The FNP recognizes this finding is associated with:
A. Decreased free fatty acid release
, B. Increasing insulin resistance
C. Improved glucose utilization
D. Enhanced insulin sensitivity
Answer: B. Increasing insulin resistance
Rationale: Improper use of glucose increases the release of free fatty
acids, which elevates triglycerides and is associated with increasing
insulin resistance.
9. When prescribing a meal plan for a patient with type 2 diabetes,
the FNP explains that the macronutrient with the most influence on
postprandial glucose level is:
A. Protein
B. Fat
C. Carbohydrate
D. Fiber
Answer: C. Carbohydrate
Rationale: Carbohydrates have the most direct and significant impact on
postprandial glucose levels because they are broken down into glucose
during digestion.
10. Which GCS score describes a severe traumatic brain injury?
A. 13-15
B. 12-13
C. 9-12
D. 3-8
Answer: D. 3-8
Rationale: The GCS is scored between 3 and 15. Severe TBI corresponds
to a score of 3-8, moderate TBI is 9-12, and mild TBI is 13-15.
COMPLETE 200-QUESTION TEST BANK WITH DETAILED
RATIONALES & STUDY GUIDE
1. A patient with long-standing hypertension develops thickening of
the left ventricular wall. Which cellular adaptation best explains this
change?
A. Hyperplasia
B. Metaplasia
C. Hypertrophy
D. Dysplasia
Answer: C. Hypertrophy
Rationale: Hypertrophy is an increase in cell size in response to
increased workload. Cardiac muscle cells undergo hypertrophy because
they have limited ability to undergo hyperplasia.
2. Prolonged myocardial ischemia resulting in irreversible injury and
cell membrane rupture is best described as which type of cellular
death?
A. Apoptosis
B. Necrosis
C. Atrophy
D. Autophagy
Answer: B. Necrosis
Rationale: Necrosis results from irreversible cellular injury and is
characterized by cell swelling, membrane rupture, and inflammation.
,3. A patient develops edema after a significant decrease in serum
albumin levels. Which mechanism contributes most directly to this
edema formation?
A. Increased plasma oncotic pressure
B. Decreased capillary permeability
C. Reduced plasma oncotic pressure causing fluid movement into
tissues
D. Increased sodium excretion
Answer: C. Reduced plasma oncotic pressure causing fluid movement
into tissues
Rationale: Albumin maintains oncotic pressure. Low albumin levels
allow fluid to shift from the vascular space into interstitial tissues.
4. A patient with metabolic acidosis develops rapid, deep respirations.
This compensatory response occurs because the respiratory system is
attempting to:
A. Increase carbon dioxide retention
B. Decrease oxygen delivery
C. Decrease carbon dioxide levels by increasing ventilation
D. Increase bicarbonate reabsorption
Answer: C. Decrease carbon dioxide levels by increasing ventilation
Rationale: In metabolic acidosis, the respiratory system compensates by
increasing the rate and depth of respirations (Kussmaul breathing) to
blow off carbon dioxide and raise pH.
5. Which immunoglobulin class is primarily associated with allergic
reactions and parasitic infections?
A. IgG
B. IgA
C. IgM
,D. IgE
Answer: D. IgE
Rationale: IgE is the immunoglobulin responsible for type I
hypersensitivity reactions and defense against parasitic infections.
6. A patient with chronic kidney disease develops hypocalcemia.
Which secondary condition is most likely to develop as a result?
A. Primary hyperparathyroidism
B. Secondary hyperparathyroidism
C. Hypoparathyroidism
D. Hyperaldosteronism
Answer: B. Secondary hyperparathyroidism
Rationale: In chronic kidney disease, decreased renal production of
calcitriol leads to hypocalcemia, which stimulates parathyroid hormone
secretion, resulting in secondary hyperparathyroidism.
7. The FNP understands that the most common cause of
hyperthyroidism in a young adult female is:
A. Thyroid cancer
B. Pituitary adenoma
C. Graves' disease
D. Postpartum thyroiditis
Answer: C. Graves' disease
Rationale: Graves' disease, an autoimmune condition also known as
diffuse toxic goiter, is the most common cause of hyperthyroidism,
accounting for 60% to 80% of cases.
8. A patient with type 2 diabetes has elevated triglycerides >150
mg/dL. The FNP recognizes this finding is associated with:
A. Decreased free fatty acid release
, B. Increasing insulin resistance
C. Improved glucose utilization
D. Enhanced insulin sensitivity
Answer: B. Increasing insulin resistance
Rationale: Improper use of glucose increases the release of free fatty
acids, which elevates triglycerides and is associated with increasing
insulin resistance.
9. When prescribing a meal plan for a patient with type 2 diabetes,
the FNP explains that the macronutrient with the most influence on
postprandial glucose level is:
A. Protein
B. Fat
C. Carbohydrate
D. Fiber
Answer: C. Carbohydrate
Rationale: Carbohydrates have the most direct and significant impact on
postprandial glucose levels because they are broken down into glucose
during digestion.
10. Which GCS score describes a severe traumatic brain injury?
A. 13-15
B. 12-13
C. 9-12
D. 3-8
Answer: D. 3-8
Rationale: The GCS is scored between 3 and 15. Severe TBI corresponds
to a score of 3-8, moderate TBI is 9-12, and mild TBI is 13-15.
