WGU D236 PATHOPHYSIOLOGY PRE ASSESSMENT QUESTIONS & ANSWERS 202… EXAM
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
WGU D236 Pathophysiology
Pre Assessment Questions
& Answers 2026-2027
(Rationales)
Verified Answers Exam Ready With Rationales
50 QUESTIONS
DOCUMENT OVERVIEW
This document provides 50 questions with verified correct answers and detailed rationales covering core
pathophysiology concepts. It is suitable for comprehensive study, review of key concepts, and preparation
for certification exams. Students can utilize this resource to deepen their understanding of complex
physiological processes and their associated disorders.
CONTENTS
01 Fluid and Electrolyte Imbalances Q1–Q9
02 Cellular and Tissue Responses Q10–Q18
03 Musculoskeletal and Neurological Disorders Q19–Q30
Page 1
, 04 Gastrointestinal and Endocrine Pathophysiology Q31–Q40
05 Cardiovascular and Pulmonary Pathophysiology Q41–Q50
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 50
Which type of sodium concentration change is caused by increased concentration of extracellular sodium
and a deficit of extracellular free water?
CORRECT ANSWER
Hypertonic fluid alteration
RATIONALE
Hypertonic fluid alteration occurs when there is an excess of solute (sodium) relative to solvent (water) in the
extracellular fluid, leading to increased serum sodium concentration. This imbalance causes water to shift from
intracellular to extracellular spaces, further concentrating the extracellular sodium.
Q2 QUESTION 2 OF 50
Which type of imbalance is caused by use of loop diuretics, osmotic diuresis, gastrointestinal losses, and
unconcentrated urine?
CORRECT ANSWER
Hypovolemic hypernatremia
RATIONALE
Loop diuretics, osmotic diuresis, GI losses, and dilute urine all lead to excessive water loss relative to sodium,
causing a decrease in total body water and extracellular fluid volume, resulting in hypernatremia and hypovolemia.
This scenario tests understanding of the relationship between water and sodium balance and the impact of various
conditions on extracellular fluid volume.
Q3 QUESTION 3 OF 50
Page 2
, Which condition results from compulsive water drinking, tap water enemas, near drowning, and use of
selective serotonin reuptake inhibitors?
CORRECT ANSWER
Dilutional hypotonic hyponatremia
RATIONALE
This condition arises from an excess of free water relative to sodium, overwhelming the kidneys' diluting capacity,
leading to a reduced serum sodium concentration. The key concept tested is the pathophysiology of hyponatremia
induced by excessive water intake or impaired water excretion.
Q4 QUESTION 4 OF 50
Which response is associated with decreases in serum calcium levels?
CORRECT ANSWER
Secretion of parathyroid hormone by the parathyroid gland
RATIONALE
Parathyroid hormone (PTH) secretion increases when serum calcium is low, stimulating bone resorption and renal
reabsorption of calcium to raise serum levels. This endocrine feedback loop is designed to maintain calcium
homeostasis.
Q5 QUESTION 5 OF 50
How does the body respond to increases in serum calcium levels?
CORRECT ANSWER
Suppression of the secretion of parathyroid hormone
RATIONALE
Elevated serum calcium directly inhibits the chief cells of the parathyroid glands, thereby suppressing parathyroid
hormone (PTH) secretion. This negative feedback mechanism is the primary endocrine response to hypercalcemia.
Q6 QUESTION 6 OF 50
Page 3
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
WGU D236 Pathophysiology
Pre Assessment Questions
& Answers 2026-2027
(Rationales)
Verified Answers Exam Ready With Rationales
50 QUESTIONS
DOCUMENT OVERVIEW
This document provides 50 questions with verified correct answers and detailed rationales covering core
pathophysiology concepts. It is suitable for comprehensive study, review of key concepts, and preparation
for certification exams. Students can utilize this resource to deepen their understanding of complex
physiological processes and their associated disorders.
CONTENTS
01 Fluid and Electrolyte Imbalances Q1–Q9
02 Cellular and Tissue Responses Q10–Q18
03 Musculoskeletal and Neurological Disorders Q19–Q30
Page 1
, 04 Gastrointestinal and Endocrine Pathophysiology Q31–Q40
05 Cardiovascular and Pulmonary Pathophysiology Q41–Q50
E XA M Q U EST I O N S
Q1 QUESTION 1 OF 50
Which type of sodium concentration change is caused by increased concentration of extracellular sodium
and a deficit of extracellular free water?
CORRECT ANSWER
Hypertonic fluid alteration
RATIONALE
Hypertonic fluid alteration occurs when there is an excess of solute (sodium) relative to solvent (water) in the
extracellular fluid, leading to increased serum sodium concentration. This imbalance causes water to shift from
intracellular to extracellular spaces, further concentrating the extracellular sodium.
Q2 QUESTION 2 OF 50
Which type of imbalance is caused by use of loop diuretics, osmotic diuresis, gastrointestinal losses, and
unconcentrated urine?
CORRECT ANSWER
Hypovolemic hypernatremia
RATIONALE
Loop diuretics, osmotic diuresis, GI losses, and dilute urine all lead to excessive water loss relative to sodium,
causing a decrease in total body water and extracellular fluid volume, resulting in hypernatremia and hypovolemia.
This scenario tests understanding of the relationship between water and sodium balance and the impact of various
conditions on extracellular fluid volume.
Q3 QUESTION 3 OF 50
Page 2
, Which condition results from compulsive water drinking, tap water enemas, near drowning, and use of
selective serotonin reuptake inhibitors?
CORRECT ANSWER
Dilutional hypotonic hyponatremia
RATIONALE
This condition arises from an excess of free water relative to sodium, overwhelming the kidneys' diluting capacity,
leading to a reduced serum sodium concentration. The key concept tested is the pathophysiology of hyponatremia
induced by excessive water intake or impaired water excretion.
Q4 QUESTION 4 OF 50
Which response is associated with decreases in serum calcium levels?
CORRECT ANSWER
Secretion of parathyroid hormone by the parathyroid gland
RATIONALE
Parathyroid hormone (PTH) secretion increases when serum calcium is low, stimulating bone resorption and renal
reabsorption of calcium to raise serum levels. This endocrine feedback loop is designed to maintain calcium
homeostasis.
Q5 QUESTION 5 OF 50
How does the body respond to increases in serum calcium levels?
CORRECT ANSWER
Suppression of the secretion of parathyroid hormone
RATIONALE
Elevated serum calcium directly inhibits the chief cells of the parathyroid glands, thereby suppressing parathyroid
hormone (PTH) secretion. This negative feedback mechanism is the primary endocrine response to hypercalcemia.
Q6 QUESTION 6 OF 50
Page 3
