[UTA NURS 5315 Test — Advanced Pathophysiology]
COMPLETE EXAM QUESTIONS AND VERIFIED ANSWERS |
2026–2027 LATEST UPDATE | GUARANTEED PASS | DETAILED
RATIONALES | FULL STUDY GUIDE | EXAM PREP | PRACTICE
TEST | CERTIFICATION PREPARATION
1. A 58-year-old male with a 20-year history of poorly controlled hypertension undergoes
echocardiography that reveals increased left ventricular wall thickness with a normal-sized
chamber. Which cellular adaptation best explains this finding?
A. Hyperplasia of cardiac myocytes
B. Hypertrophy of cardiac myocytes
C. Atrophy of cardiac myocytes
D. Metaplasia of cardiac myocytes
Correct Answer: B. Hypertrophy of cardiac myocytes
Rationale: Hypertrophy is an increase in cell size without cell division, occurring in tissues incapable of
replication such as cardiac muscle. Chronic pressure overload from hypertension increases afterload,
forcing the left ventricle to work harder and resulting in concentric hypertrophy. Hyperplasia (A)
involves increased cell number and does not occur in cardiac muscle. Atrophy (C) is a decrease in cell
size. Metaplasia (D) is the reversible replacement of one mature cell type with another and is not
characteristic of myocardial adaptation to pressure overload.
2. A patient with chronic obstructive pulmonary disease from long-term smoking undergoes
bronchial biopsy. The pathology report describes replacement of ciliated columnar epithelium with
stratified squamous epithelium. This finding represents which cellular adaptation?
A. Dysplasia
B. Anaplasia
C. Metaplasia
D. Hyperplasia
Correct Answer: C. Metaplasia
Rationale: Metaplasia is the reversible replacement of one differentiated cell type with another, often
in response to chronic irritation. In smokers, ciliated columnar cells are replaced by squamous cells
that are more resistant to injury but lack mucociliary function. Dysplasia (A) refers to disordered
growth with loss of uniformity and is considered premalignant. Anaplasia (B) is a hallmark of
malignancy characterized by poor cellular differentiation. Hyperplasia (D) is an increase in cell
number.
3. During an acute ischemic event, a patient’s cardiac cells shift from reversible to irreversible
injury. Which cellular change is most indicative of irreversible injury?
A. Cellular swelling
B. Ribosomal detachment from endoplasmic reticulum
C. Severe membrane damage with enzyme leakage
D. Fatty change within the cytoplasm
Correct Answer: C. Severe membrane damage with enzyme leakage
Rationale: Irreversible cell injury is characterized by severe membrane damage, including plasma
membrane rupture and leakage of intracellular enzymes such as troponin and creatine kinase into
the bloodstream. Cellular swelling (A) occurs early in reversible injury due to ATP depletion and failure
,of ion pumps. Ribosomal detachment (B) is also a reversible change. Fatty change (D) represents
sublethal, reversible accumulation of triglycerides.
4. A 45-year-old female presents with fatigue and jaundice. Laboratory studies reveal elevated
unconjugated bilirubin. Which pathophysiologic mechanism most likely accounts for this finding?
A. Increased hepatic conjugation of bilirubin
B. Excessive hemolysis of red blood cells
C. Biliary obstruction from gallstones
D. Impaired renal excretion of bilirubin
Correct Answer: B. Excessive hemolysis of red blood cells
Rationale: Unconjugated (indirect) hyperbilirubinemia results from increased bilirubin production
that exceeds the liver’s conjugation capacity, commonly due to hemolysis. Increased conjugation (A)
would lower unconjugated levels. Biliary obstruction (C) produces conjugated (direct)
hyperbilirubinemia. Impaired renal excretion (D) is not a primary mechanism of bilirubin elevation.
5. A patient receiving chemotherapy for lymphoma develops acute tumor lysis syndrome. Which
electrolyte abnormality is most directly attributable to massive cellular breakdown?
A. Hyponatremia
B. Hypocalcemia
C. Hyperkalemia
D. Hypophosphatemia
Correct Answer: C. Hyperkalemia
Rationale: Potassium is the predominant intracellular cation. When malignant cells are rapidly lysed,
intracellular potassium is released into the extracellular fluid, producing hyperkalemia. Hypocalcemia
(B) also occurs in tumor lysis syndrome but is secondary to hyperphosphatemia binding calcium, not
direct cellular release. Hyponatremia (A) and hypophosphatemia (D) are not characteristic findings.
6. A 62-year-old male with a history of myocardial infarction presents with new-onset heart failure.
The nurse practitioner understands that the most common cause of right-sided heart failure is
which of the following?
A. Left-sided heart failure
B. Pulmonary embolism
C. Chronic obstructive pulmonary disease
D. Tricuspid valve stenosis
Correct Answer: A. Left-sided heart failure
Rationale: Left-sided heart failure increases pulmonary pressures, eventually causing right ventricular
strain and failure. This is the most common cause of right-sided heart failure. Pulmonary embolism
(B) and COPD (C) can cause acute cor pulmonale but are less common. Tricuspid stenosis (D) is a rare
cause.
7. A patient presents with severe dehydration and a serum sodium of 158 mEq/L. Which
compensatory mechanism would the nurse practitioner expect to observe?
A. Increased thirst and ADH secretion
B. Decreased aldosterone secretion
C. Increased atrial natriuretic peptide release
D. Decreased renin secretion
Correct Answer: A. Increased thirst and ADH secretion
Rationale: Hypernatremia stimulates hypothalamic osmoreceptors, triggering thirst and antidiuretic
hormone (ADH) release. ADH promotes water reabsorption in the collecting ducts, diluting serum
sodium. Decreased aldosterone (B) would promote sodium loss, worsening hypernatremia. ANP (C)
,promotes sodium and water excretion, which would not correct dehydration. Decreased renin (D)
would reduce aldosterone, also counterproductive.
8. A 28-year-old female presents with acute-onset fever, hypotension, and a diffuse erythematous
rash. She reports using a new tampon. The nurse practitioner suspects toxic shock syndrome.
Which pathophysiologic mechanism best explains the hypotension?
A. Direct myocardial depression by bacterial endotoxin
B. Massive vasodilation from superantigen-mediated cytokine release
C. Increased capillary permeability from histamine release
D. Decreased systemic vascular resistance from adrenal insufficiency
Correct Answer: B. Massive vasodilation from superantigen-mediated cytokine release
Rationale: Toxic shock syndrome is caused by superantigens (typically staphylococcal toxin) that
activate large numbers of T cells, triggering massive release of cytokines such as TNF-alpha and IL-1.
This produces profound vasodilation and distributive shock. Myocardial depression (A) is not the
primary mechanism. Histamine-mediated permeability (C) describes anaphylaxis. Adrenal
insufficiency (D) is unrelated to toxic shock syndrome.
9. A 70-year-old male with benign prostatic hyperplasia reports difficulty initiating urination and a
weak urinary stream. These symptoms are primarily the result of which pathophysiologic process?
A. Infection of the prostate gland
B. Ischemia of the urethral mucosa
C. Compression of the urethra by enlarged prostatic tissue
D. Malignant transformation of prostatic cells
Correct Answer: C. Compression of the urethra by enlarged prostatic tissue
Rationale: Benign prostatic hyperplasia involves proliferation of prostatic glandular and stromal
tissue, particularly in the periurethral zone. As the prostate enlarges, it compresses the urethra,
causing obstructive symptoms. Infection (A) would produce prostatitis with pain and fever. Ischemia
(B) is not the mechanism. Malignancy (D) typically arises in the peripheral zone and may not cause
early obstructive symptoms.
10. A 55-year-old female with type 2 diabetes mellitus has a hemoglobin A1c of 9.2%. Which
pathophysiologic mechanism best explains the chronic hyperglycemia in this condition?
A. Autoimmune destruction of pancreatic beta cells
B. Insulin resistance with relative insulin deficiency
C. Excessive glucagon secretion from pancreatic alpha cells
D. Impaired renal glucose reabsorption
Correct Answer: B. Insulin resistance with relative insulin deficiency
Rationale: Type 2 diabetes is characterized by peripheral insulin resistance and progressive beta-cell
dysfunction, resulting in relative insulin deficiency. Autoimmune beta-cell destruction (A) describes
type 1 diabetes. Excessive glucagon (C) contributes but is not the primary mechanism. Impaired renal
reabsorption (D) would cause glucosuria without hyperglycemia.
11. A patient with a history of gastrectomy presents with pallor, fatigue, and a hemoglobin of 8.5
g/dL. Peripheral blood smear reveals large, oval macrocytes with hypersegmented neutrophils.
Which deficiency is most likely responsible?
A. Iron deficiency
B. Vitamin B12 deficiency
C. Folate deficiency
D. Erythropoietin deficiency
Correct Answer: B. Vitamin B12 deficiency
, Rationale: Vitamin B12 deficiency produces megaloblastic anemia with hypersegmented neutrophils.
Gastrectomy removes intrinsic factor-producing cells, impairing B12 absorption. Iron deficiency (A)
causes microcytic, hypochromic anemia. Folate deficiency (C) also causes megaloblastic anemia but is
less likely following gastrectomy unless dietary intake is poor. Erythropoietin deficiency (D) causes
normocytic anemia in chronic kidney disease.
12. A 60-year-old male with cirrhosis develops ascites. Which mechanism contributes most directly
to fluid accumulation in the peritoneal cavity?
A. Increased hepatic lymphatic drainage
B. Portal hypertension with increased capillary hydrostatic pressure
C. Increased serum albumin synthesis
D. Decreased aldosterone secretion
Correct Answer: B. Portal hypertension with increased capillary hydrostatic pressure
Rationale: Cirrhosis causes portal hypertension, which increases hydrostatic pressure in splanchnic
capillaries, forcing fluid into the peritoneal cavity. Decreased albumin synthesis (C) reduces oncotic
pressure and also contributes, but portal hypertension is the primary local mechanism. Increased
lymphatic drainage (A) would help remove fluid. Decreased aldosterone (D) would promote sodium
loss and reduce fluid retention.
13. A patient with acute pancreatitis presents with hypocalcemia. Which mechanism best explains
this electrolyte disturbance?
A. Saponification of calcium by free fatty acids
B. Increased renal calcium excretion
C. Decreased parathyroid hormone secretion
D. Vitamin D deficiency
Correct Answer: A. Saponification of calcium by free fatty acids
Rationale: In acute pancreatitis, lipases digest peripancreatic fat, releasing free fatty acids that bind
calcium in a process called saponification, causing hypocalcemia. Increased renal excretion (B),
decreased PTH (C), and vitamin D deficiency (D) are not the primary mechanisms in acute
pancreatitis.
14. A 35-year-old female presents with fatigue, weight gain, cold intolerance, and a heart rate of 52
beats per minute. Laboratory studies reveal elevated TSH and low free T4. Which condition is most
likely?
A. Hyperthyroidism
B. Primary hypothyroidism
C. Secondary hypothyroidism
D. Euthyroid sick syndrome
Correct Answer: B. Primary hypothyroidism
Rationale: Elevated TSH with low free T4 indicates primary thyroid failure (Hashimoto thyroiditis most
commonly). The elevated TSH represents appropriate pituitary compensation. Hyperthyroidism (A)
would show low TSH and high T4. Secondary hypothyroidism (C) would show low TSH and low T4.
Euthyroid sick syndrome (D) typically shows normal or low TSH with low T3.
15. A patient with chronic kidney disease has a creatinine of 4.2 mg/dL and reports pruritus and
fatigue. Which pathophysiologic consequence of uremia is most likely responsible for the pruritus?
A. Hyperkalemia
B. Accumulation of uremic toxins
C. Metabolic alkalosis
D. Hyperphosphatemia with calcium-phosphate deposition
COMPLETE EXAM QUESTIONS AND VERIFIED ANSWERS |
2026–2027 LATEST UPDATE | GUARANTEED PASS | DETAILED
RATIONALES | FULL STUDY GUIDE | EXAM PREP | PRACTICE
TEST | CERTIFICATION PREPARATION
1. A 58-year-old male with a 20-year history of poorly controlled hypertension undergoes
echocardiography that reveals increased left ventricular wall thickness with a normal-sized
chamber. Which cellular adaptation best explains this finding?
A. Hyperplasia of cardiac myocytes
B. Hypertrophy of cardiac myocytes
C. Atrophy of cardiac myocytes
D. Metaplasia of cardiac myocytes
Correct Answer: B. Hypertrophy of cardiac myocytes
Rationale: Hypertrophy is an increase in cell size without cell division, occurring in tissues incapable of
replication such as cardiac muscle. Chronic pressure overload from hypertension increases afterload,
forcing the left ventricle to work harder and resulting in concentric hypertrophy. Hyperplasia (A)
involves increased cell number and does not occur in cardiac muscle. Atrophy (C) is a decrease in cell
size. Metaplasia (D) is the reversible replacement of one mature cell type with another and is not
characteristic of myocardial adaptation to pressure overload.
2. A patient with chronic obstructive pulmonary disease from long-term smoking undergoes
bronchial biopsy. The pathology report describes replacement of ciliated columnar epithelium with
stratified squamous epithelium. This finding represents which cellular adaptation?
A. Dysplasia
B. Anaplasia
C. Metaplasia
D. Hyperplasia
Correct Answer: C. Metaplasia
Rationale: Metaplasia is the reversible replacement of one differentiated cell type with another, often
in response to chronic irritation. In smokers, ciliated columnar cells are replaced by squamous cells
that are more resistant to injury but lack mucociliary function. Dysplasia (A) refers to disordered
growth with loss of uniformity and is considered premalignant. Anaplasia (B) is a hallmark of
malignancy characterized by poor cellular differentiation. Hyperplasia (D) is an increase in cell
number.
3. During an acute ischemic event, a patient’s cardiac cells shift from reversible to irreversible
injury. Which cellular change is most indicative of irreversible injury?
A. Cellular swelling
B. Ribosomal detachment from endoplasmic reticulum
C. Severe membrane damage with enzyme leakage
D. Fatty change within the cytoplasm
Correct Answer: C. Severe membrane damage with enzyme leakage
Rationale: Irreversible cell injury is characterized by severe membrane damage, including plasma
membrane rupture and leakage of intracellular enzymes such as troponin and creatine kinase into
the bloodstream. Cellular swelling (A) occurs early in reversible injury due to ATP depletion and failure
,of ion pumps. Ribosomal detachment (B) is also a reversible change. Fatty change (D) represents
sublethal, reversible accumulation of triglycerides.
4. A 45-year-old female presents with fatigue and jaundice. Laboratory studies reveal elevated
unconjugated bilirubin. Which pathophysiologic mechanism most likely accounts for this finding?
A. Increased hepatic conjugation of bilirubin
B. Excessive hemolysis of red blood cells
C. Biliary obstruction from gallstones
D. Impaired renal excretion of bilirubin
Correct Answer: B. Excessive hemolysis of red blood cells
Rationale: Unconjugated (indirect) hyperbilirubinemia results from increased bilirubin production
that exceeds the liver’s conjugation capacity, commonly due to hemolysis. Increased conjugation (A)
would lower unconjugated levels. Biliary obstruction (C) produces conjugated (direct)
hyperbilirubinemia. Impaired renal excretion (D) is not a primary mechanism of bilirubin elevation.
5. A patient receiving chemotherapy for lymphoma develops acute tumor lysis syndrome. Which
electrolyte abnormality is most directly attributable to massive cellular breakdown?
A. Hyponatremia
B. Hypocalcemia
C. Hyperkalemia
D. Hypophosphatemia
Correct Answer: C. Hyperkalemia
Rationale: Potassium is the predominant intracellular cation. When malignant cells are rapidly lysed,
intracellular potassium is released into the extracellular fluid, producing hyperkalemia. Hypocalcemia
(B) also occurs in tumor lysis syndrome but is secondary to hyperphosphatemia binding calcium, not
direct cellular release. Hyponatremia (A) and hypophosphatemia (D) are not characteristic findings.
6. A 62-year-old male with a history of myocardial infarction presents with new-onset heart failure.
The nurse practitioner understands that the most common cause of right-sided heart failure is
which of the following?
A. Left-sided heart failure
B. Pulmonary embolism
C. Chronic obstructive pulmonary disease
D. Tricuspid valve stenosis
Correct Answer: A. Left-sided heart failure
Rationale: Left-sided heart failure increases pulmonary pressures, eventually causing right ventricular
strain and failure. This is the most common cause of right-sided heart failure. Pulmonary embolism
(B) and COPD (C) can cause acute cor pulmonale but are less common. Tricuspid stenosis (D) is a rare
cause.
7. A patient presents with severe dehydration and a serum sodium of 158 mEq/L. Which
compensatory mechanism would the nurse practitioner expect to observe?
A. Increased thirst and ADH secretion
B. Decreased aldosterone secretion
C. Increased atrial natriuretic peptide release
D. Decreased renin secretion
Correct Answer: A. Increased thirst and ADH secretion
Rationale: Hypernatremia stimulates hypothalamic osmoreceptors, triggering thirst and antidiuretic
hormone (ADH) release. ADH promotes water reabsorption in the collecting ducts, diluting serum
sodium. Decreased aldosterone (B) would promote sodium loss, worsening hypernatremia. ANP (C)
,promotes sodium and water excretion, which would not correct dehydration. Decreased renin (D)
would reduce aldosterone, also counterproductive.
8. A 28-year-old female presents with acute-onset fever, hypotension, and a diffuse erythematous
rash. She reports using a new tampon. The nurse practitioner suspects toxic shock syndrome.
Which pathophysiologic mechanism best explains the hypotension?
A. Direct myocardial depression by bacterial endotoxin
B. Massive vasodilation from superantigen-mediated cytokine release
C. Increased capillary permeability from histamine release
D. Decreased systemic vascular resistance from adrenal insufficiency
Correct Answer: B. Massive vasodilation from superantigen-mediated cytokine release
Rationale: Toxic shock syndrome is caused by superantigens (typically staphylococcal toxin) that
activate large numbers of T cells, triggering massive release of cytokines such as TNF-alpha and IL-1.
This produces profound vasodilation and distributive shock. Myocardial depression (A) is not the
primary mechanism. Histamine-mediated permeability (C) describes anaphylaxis. Adrenal
insufficiency (D) is unrelated to toxic shock syndrome.
9. A 70-year-old male with benign prostatic hyperplasia reports difficulty initiating urination and a
weak urinary stream. These symptoms are primarily the result of which pathophysiologic process?
A. Infection of the prostate gland
B. Ischemia of the urethral mucosa
C. Compression of the urethra by enlarged prostatic tissue
D. Malignant transformation of prostatic cells
Correct Answer: C. Compression of the urethra by enlarged prostatic tissue
Rationale: Benign prostatic hyperplasia involves proliferation of prostatic glandular and stromal
tissue, particularly in the periurethral zone. As the prostate enlarges, it compresses the urethra,
causing obstructive symptoms. Infection (A) would produce prostatitis with pain and fever. Ischemia
(B) is not the mechanism. Malignancy (D) typically arises in the peripheral zone and may not cause
early obstructive symptoms.
10. A 55-year-old female with type 2 diabetes mellitus has a hemoglobin A1c of 9.2%. Which
pathophysiologic mechanism best explains the chronic hyperglycemia in this condition?
A. Autoimmune destruction of pancreatic beta cells
B. Insulin resistance with relative insulin deficiency
C. Excessive glucagon secretion from pancreatic alpha cells
D. Impaired renal glucose reabsorption
Correct Answer: B. Insulin resistance with relative insulin deficiency
Rationale: Type 2 diabetes is characterized by peripheral insulin resistance and progressive beta-cell
dysfunction, resulting in relative insulin deficiency. Autoimmune beta-cell destruction (A) describes
type 1 diabetes. Excessive glucagon (C) contributes but is not the primary mechanism. Impaired renal
reabsorption (D) would cause glucosuria without hyperglycemia.
11. A patient with a history of gastrectomy presents with pallor, fatigue, and a hemoglobin of 8.5
g/dL. Peripheral blood smear reveals large, oval macrocytes with hypersegmented neutrophils.
Which deficiency is most likely responsible?
A. Iron deficiency
B. Vitamin B12 deficiency
C. Folate deficiency
D. Erythropoietin deficiency
Correct Answer: B. Vitamin B12 deficiency
, Rationale: Vitamin B12 deficiency produces megaloblastic anemia with hypersegmented neutrophils.
Gastrectomy removes intrinsic factor-producing cells, impairing B12 absorption. Iron deficiency (A)
causes microcytic, hypochromic anemia. Folate deficiency (C) also causes megaloblastic anemia but is
less likely following gastrectomy unless dietary intake is poor. Erythropoietin deficiency (D) causes
normocytic anemia in chronic kidney disease.
12. A 60-year-old male with cirrhosis develops ascites. Which mechanism contributes most directly
to fluid accumulation in the peritoneal cavity?
A. Increased hepatic lymphatic drainage
B. Portal hypertension with increased capillary hydrostatic pressure
C. Increased serum albumin synthesis
D. Decreased aldosterone secretion
Correct Answer: B. Portal hypertension with increased capillary hydrostatic pressure
Rationale: Cirrhosis causes portal hypertension, which increases hydrostatic pressure in splanchnic
capillaries, forcing fluid into the peritoneal cavity. Decreased albumin synthesis (C) reduces oncotic
pressure and also contributes, but portal hypertension is the primary local mechanism. Increased
lymphatic drainage (A) would help remove fluid. Decreased aldosterone (D) would promote sodium
loss and reduce fluid retention.
13. A patient with acute pancreatitis presents with hypocalcemia. Which mechanism best explains
this electrolyte disturbance?
A. Saponification of calcium by free fatty acids
B. Increased renal calcium excretion
C. Decreased parathyroid hormone secretion
D. Vitamin D deficiency
Correct Answer: A. Saponification of calcium by free fatty acids
Rationale: In acute pancreatitis, lipases digest peripancreatic fat, releasing free fatty acids that bind
calcium in a process called saponification, causing hypocalcemia. Increased renal excretion (B),
decreased PTH (C), and vitamin D deficiency (D) are not the primary mechanisms in acute
pancreatitis.
14. A 35-year-old female presents with fatigue, weight gain, cold intolerance, and a heart rate of 52
beats per minute. Laboratory studies reveal elevated TSH and low free T4. Which condition is most
likely?
A. Hyperthyroidism
B. Primary hypothyroidism
C. Secondary hypothyroidism
D. Euthyroid sick syndrome
Correct Answer: B. Primary hypothyroidism
Rationale: Elevated TSH with low free T4 indicates primary thyroid failure (Hashimoto thyroiditis most
commonly). The elevated TSH represents appropriate pituitary compensation. Hyperthyroidism (A)
would show low TSH and high T4. Secondary hypothyroidism (C) would show low TSH and low T4.
Euthyroid sick syndrome (D) typically shows normal or low TSH with low T3.
15. A patient with chronic kidney disease has a creatinine of 4.2 mg/dL and reports pruritus and
fatigue. Which pathophysiologic consequence of uremia is most likely responsible for the pruritus?
A. Hyperkalemia
B. Accumulation of uremic toxins
C. Metabolic alkalosis
D. Hyperphosphatemia with calcium-phosphate deposition
