NURS 5315 Exam 5 (UTA) –Original Advanced
Pathophysiology Practice Questions with
Answers & Rationales (2026) Latest Update This
Year Latest Update This Year Pdf Instant Download
Pdf
Pdf Instant Download Pdf
Coverage
This practice exam is designed for the NURS 5315 Advanced Pathophysiology course at
UTA, aligned with common Exam 5 content areas including renal pathophysiology, fluid and
electrolyte disorders, acid–base disturbances, endocrine disorders, and hematology. Each
question includes a clear answer and a concise rationale to reinforce pathophysiologic
reasoning and clinical decision-making skills. Ideal for graduate nursing students preparing
for Exam 5 or seeking to strengthen their understanding of advanced pathophysiology.
Q1. Which pathophysiologic mechanism best explains the development of
metabolic acidosis in a patient with severe diabetic ketoacidosis?*
Answer: Increased production of ketoacids from fat metabolism exceeds buffering
and excretion capacity.
Explanation: DKA causes accumulation of β-hydroxybutyrate and acetoacetate,
lowering pH.
Q2. A patient with chronic kidney disease develops anemia. Which mechanism
primarily contributes to this hematologic complication?*
,Answer: Decreased erythropoietin production by damaged renal tissue primarily
contributes to anemia.
Explanation: Kidneys produce erythropoietin; loss reduces RBC production.
Q3. Which renal structure is primarily responsible for the reabsorption of the
majority of filtered sodium and water in the nephron?*
Answer: The proximal convoluted tubule is primarily responsible for reabsorbing
most filtered sodium and water.
Explanation: About 65–70% of Na⁺ and water are reabsorbed here.
Q4. In a patient with syndrome of inappropriate antidiuretic hormone secretion,
which electrolyte abnormality is most likely to develop?*
Answer: Hyponatremia is the most likely electrolyte abnormality in SIADH.
Explanation: Excess ADH causes water retention and dilutional hyponatremia.
Q5. Which acid–base disturbance is most consistent with a pH of 7.50, PaCO₂ of
30 mmHg, and HCO₃⁻ of 22 mEq/L?*
Answer: Respiratory alkalosis is most consistent with these arterial blood gas
values.
Explanation: High pH with low PaCO₂ indicates primary respiratory alkalosis.
Q6. A patient with Addison’s disease is most likely to present with which
combination of electrolyte abnormalities?*
, Answer: Hyponatremia and hyperkalemia are most likely in Addison’s disease.
Explanation: Aldosterone deficiency causes sodium loss and potassium retention.
Q7. Which pathophysiologic process best explains the development of
hyperkalemia in a patient with acute renal failure?*
Answer: Decreased renal excretion of potassium due to impaired tubular function
explains hyperkalemia.
Explanation: Kidneys cannot adequately excrete potassium in acute failure.
Q8. In a patient with primary hyperparathyroidism, which serum calcium and
phosphate pattern is most characteristic?*
Answer: Hypercalcemia with hypophosphatemia is most characteristic of primary
hyperparathyroidism.
Explanation: Excess PTH increases calcium and decreases phosphate
reabsorption.
Q9. Which compensatory mechanism is most likely to occur in response to
chronic respiratory acidosis in a patient with COPD?*
Answer: Renal retention of bicarbonate is the primary compensatory mechanism
for chronic respiratory acidosis.
Explanation: Kidneys increase HCO₃⁻ to buffer excess acid.
Pathophysiology Practice Questions with
Answers & Rationales (2026) Latest Update This
Year Latest Update This Year Pdf Instant Download
Pdf Instant Download Pdf
Coverage
This practice exam is designed for the NURS 5315 Advanced Pathophysiology course at
UTA, aligned with common Exam 5 content areas including renal pathophysiology, fluid and
electrolyte disorders, acid–base disturbances, endocrine disorders, and hematology. Each
question includes a clear answer and a concise rationale to reinforce pathophysiologic
reasoning and clinical decision-making skills. Ideal for graduate nursing students preparing
for Exam 5 or seeking to strengthen their understanding of advanced pathophysiology.
Q1. Which pathophysiologic mechanism best explains the development of
metabolic acidosis in a patient with severe diabetic ketoacidosis?*
Answer: Increased production of ketoacids from fat metabolism exceeds buffering
and excretion capacity.
Explanation: DKA causes accumulation of β-hydroxybutyrate and acetoacetate,
lowering pH.
Q2. A patient with chronic kidney disease develops anemia. Which mechanism
primarily contributes to this hematologic complication?*
,Answer: Decreased erythropoietin production by damaged renal tissue primarily
contributes to anemia.
Explanation: Kidneys produce erythropoietin; loss reduces RBC production.
Q3. Which renal structure is primarily responsible for the reabsorption of the
majority of filtered sodium and water in the nephron?*
Answer: The proximal convoluted tubule is primarily responsible for reabsorbing
most filtered sodium and water.
Explanation: About 65–70% of Na⁺ and water are reabsorbed here.
Q4. In a patient with syndrome of inappropriate antidiuretic hormone secretion,
which electrolyte abnormality is most likely to develop?*
Answer: Hyponatremia is the most likely electrolyte abnormality in SIADH.
Explanation: Excess ADH causes water retention and dilutional hyponatremia.
Q5. Which acid–base disturbance is most consistent with a pH of 7.50, PaCO₂ of
30 mmHg, and HCO₃⁻ of 22 mEq/L?*
Answer: Respiratory alkalosis is most consistent with these arterial blood gas
values.
Explanation: High pH with low PaCO₂ indicates primary respiratory alkalosis.
Q6. A patient with Addison’s disease is most likely to present with which
combination of electrolyte abnormalities?*
, Answer: Hyponatremia and hyperkalemia are most likely in Addison’s disease.
Explanation: Aldosterone deficiency causes sodium loss and potassium retention.
Q7. Which pathophysiologic process best explains the development of
hyperkalemia in a patient with acute renal failure?*
Answer: Decreased renal excretion of potassium due to impaired tubular function
explains hyperkalemia.
Explanation: Kidneys cannot adequately excrete potassium in acute failure.
Q8. In a patient with primary hyperparathyroidism, which serum calcium and
phosphate pattern is most characteristic?*
Answer: Hypercalcemia with hypophosphatemia is most characteristic of primary
hyperparathyroidism.
Explanation: Excess PTH increases calcium and decreases phosphate
reabsorption.
Q9. Which compensatory mechanism is most likely to occur in response to
chronic respiratory acidosis in a patient with COPD?*
Answer: Renal retention of bicarbonate is the primary compensatory mechanism
for chronic respiratory acidosis.
Explanation: Kidneys increase HCO₃⁻ to buffer excess acid.
