Fall Semester 2026–2027 RASMUSSEN NUR2063 Essentials of Pathophysiology
Updated 2026 | 190+ Questions and Answers | Rasmussen University NUR2063
Comprehensive Study Guide, Practice Exam, Exam Prep Test Bank, Cellular
Adaptation and Injury, Inflammation and Healing, Immune System Disorders, Fluid
and Electrolyte Imbalances, Cardiovascular Pathophysiology, Respiratory
Disorders, Endocrine Diseases, Renal Dysfunction, Neurological Conditions,
Detailed Rationales and Complete Revision Material
Question 1: A 72-year-old male with a history of hypertension presents with a
sudden onset of severe, tearing chest pain radiating to his back. His blood pressure
is 180/100 mmHg in his right arm and 130/80 mmHg in his left arm. Which of the
following pathophysiological processes is most likely responsible for his
presentation?
A. Rupture of an atherosclerotic plaque in the coronary artery
B. Dissection of the tunica media of the aorta
C. Occlusion of the pulmonary artery by a thrombus
D. Spasm of the esophageal smooth muscle
CORRECT ANSWER: B. Dissection of the tunica media of the aorta
Rationale:The patient's presentation of acute, tearing chest pain radiating to the back,
along with a differential blood pressure between arms, is classic for an aortic
dissection. This occurs when a tear in the intima allows blood to enter the tunica media,
creating a false lumen that can propagate and compromise branch vessels, leading to
pulse deficits.
Question 2: A 65-year-old female with a long history of type 2 diabetes mellitus is
diagnosed with chronic kidney disease. Her hemoglobin A1c is 9.2%. Which of the
following best describes the primary mechanism by which chronic hyperglycemia
contributes to her renal pathology?
A. Non-enzymatic glycosylation of basement membrane proteins leading to thickening
B. Direct toxic effect of glucose on the glomerular podocytes
C. Autoimmune destruction of the renal tubules
D. Ischemic injury due to macrovascular atherosclerosis
CORRECT ANSWER: A. Non-enzymatic glycosylation of basement membrane
proteins leading to thickening
Rationale:Chronic hyperglycemia leads to the formation of advanced glycation end-
products (AGEs) through non-enzymatic glycosylation. These AGEs accumulate in the
glomerular basement membrane, causing thickening and increased permeability, which
is a hallmark of diabetic nephropathy. This process also stimulates mesangial
expansion and fibrosis.
Question 3: A patient with a history of heart failure develops ascites and peripheral
edema. This fluid accumulation is primarily due to which of the following
pathophysiological mechanisms?
,A. Decreased plasma oncotic pressure due to liver failure
B. Increased hydrostatic pressure in the venous system
C. Increased capillary permeability due to systemic inflammation
D. Lymphatic obstruction causing impaired fluid return
CORRECT ANSWER: B. Increased hydrostatic pressure in the venous system
Rationale:In heart failure, the heart's inability to pump effectively leads to a backup of
blood, increasing venous hydrostatic pressure. This elevated pressure forces fluid out of
the capillaries and into the interstitial space, leading to edema and, when severe in the
liver and portal circulation, ascites.
Question 4: A 45-year-old male presents with jaundice, dark urine, and clay-
colored stools. Laboratory tests reveal elevated direct bilirubin and alkaline
phosphatase. This clinical picture is most consistent with which type of jaundice?
A. Pre-hepatic jaundice
B. Hepatic jaundice
C. Post-hepatic (obstructive) jaundice
D. Unconjugated hyperbilirubinemia
CORRECT ANSWER: C. Post-hepatic (obstructive) jaundice
Rationale:The presence of dark urine, clay-colored stools, and elevated direct
(conjugated) bilirubin with a high alkaline phosphatase indicates an obstruction in the
biliary tree. This prevents conjugated bilirubin from reaching the intestines, where it is
normally converted to urobilinogen (causing brown stool), and it backs up into the
blood, being excreted in the urine.
Question 5: A patient with severe sepsis develops acute respiratory distress
syndrome (ARDS). Which of the following pathophysiological changes is the
hallmark of this condition?
A. Increased alveolar surface tension due to surfactant deficiency
B. Diffuse alveolar damage leading to increased capillary permeability
C. Bronchoconstriction and mucus hypersecretion
D. Atelectasis due to obstruction of airways by a foreign body
CORRECT ANSWER: B. Diffuse alveolar damage leading to increased capillary
permeability
Rationale:ARDS is characterized by an acute inflammatory response in the lung
parenchyma, often triggered by a systemic insult like sepsis. This causes diffuse
alveolar damage, which disrupts the alveolar-capillary membrane and leads to
increased permeability. This results in the leakage of protein-rich fluid into the alveolar
spaces, causing pulmonary edema, impaired gas exchange, and stiff lungs.
,Question 6: A child is diagnosed with cystic fibrosis. Which of the following best
describes the underlying genetic defect and its primary physiological
consequence?
A. Mutation in the CFTR gene leading to defective chloride transport and thick, viscous
secretions
B. Deletion of a phenylalanine residue in the alpha-1 antitrypsin protein
C. Autosomal dominant mutation causing abnormal hemoglobin structure
D. Mutation in the gene encoding for dystrophin protein
CORRECT ANSWER: A. Mutation in the CFTR gene leading to defective chloride
transport and thick, viscous secretions
Rationale:Cystic fibrosis is caused by a mutation in the cystic fibrosis transmembrane
conductance regulator (CFTR) gene, most commonly a deletion of phenylalanine at
position 508. This defect impairs chloride transport across epithelial cell membranes,
leading to increased sodium and water absorption. This results in the production of
thick, viscous secretions that obstruct various organ systems, including the lungs,
pancreas, and biliary tract.
Question 7: A 68-year-old male with a 40-pack-year smoking history presents with a
chronic cough, hemoptysis, and weight loss. Imaging reveals a central mass in his
right lung. A biopsy confirms small cell lung cancer (SCLC). Which of the following
paraneoplastic syndromes is most commonly associated with this type of lung
cancer?
A. Hypercalcemia
B. Syndrome of Inappropriate Antidiuretic Hormone (SIADH)
C. Hypertrophic pulmonary osteoarthropathy
D. Gynecomastia
CORRECT ANSWER: B. Syndrome of Inappropriate Antidiuretic Hormone (SIADH)
Rationale:Small cell lung cancer (SCLC) is a neuroendocrine tumor that is highly
associated with paraneoplastic syndromes. The most common is SIADH, where the
tumor ectopically produces antidiuretic hormone (ADH). This leads to water retention,
hyponatremia, and concentrated urine. SCLC is also associated with Cushing's
syndrome due to ectopic ACTH production.
Question 8: A patient is diagnosed with a deep vein thrombosis (DVT) in the left leg.
A major concern is the risk of a pulmonary embolism (PE). What is the most direct
pathophysiological event leading to PE from a DVT?
A. A piece of the thrombus breaks off and travels through the arterial system to the
lungs
B. The thrombus extends proximally and obstructs the femoral vein
C. A piece of the thrombus embolizes and travels through the venous system to the
pulmonary artery
, D. The thrombus causes local inflammation leading to a secondary clot in the
pulmonary vasculature
CORRECT ANSWER: C. A piece of the thrombus embolizes and travels through the
venous system to the pulmonary artery
Rationale:An embolus from a DVT, usually originating in the deep veins of the legs,
travels through the inferior vena cava, into the right atrium, right ventricle, and then
lodges in the pulmonary artery or its branches. This causes a pulmonary embolism,
obstructing pulmonary blood flow and leading to ventilation-perfusion (V/Q) mismatch
and potential right heart strain.
Question 9: A patient with a history of gout presents with an acutely painful,
swollen, and red great toe. Which of the following pathophysiological processes is
the primary cause of this inflammatory response?
A. Deposition of uric acid crystals in the synovial fluid and joint space
B. Autoimmune destruction of the joint cartilage
C. Infection of the joint by Staphylococcus aureus
D. Degeneration of the articular cartilage due to repetitive stress
CORRECT ANSWER: A. Deposition of uric acid crystals in the synovial fluid and joint
space
Rationale:Gout is caused by hyperuricemia, leading to the deposition of monosodium
urate crystals in joints and soft tissues. The crystals are phagocytosed by macrophages
and neutrophils, which then activate the inflammasome, leading to the release of pro-
inflammatory cytokines like IL-1β. This cascade results in the acute, intense
inflammatory response characteristic of a gout attack.
Question 10: A 55-year-old female is diagnosed with iron deficiency anemia. Which
of the following laboratory findings would be most consistent with this diagnosis?
A. High serum ferritin and high serum iron
B. Low serum ferritin and low serum iron
C. High total iron-binding capacity (TIBC) and high serum ferritin
D. Low serum iron and low total iron-binding capacity (TIBC)
CORRECT ANSWER: B. Low serum ferritin and low serum iron
Rationale:Iron deficiency anemia is characterized by a depletion of iron stores. Ferritin
is the primary storage protein for iron, so its level will be low. Serum iron will also be low.
The total iron-binding capacity (TIBC), which reflects the body's need for iron, is
typically elevated or high-normal in true iron deficiency.
Question 11: A 72-year-old patient is admitted with a hip fracture following a fall.
He has a history of osteoporosis. Which of the following best describes the
underlying pathophysiology of this condition?
Updated 2026 | 190+ Questions and Answers | Rasmussen University NUR2063
Comprehensive Study Guide, Practice Exam, Exam Prep Test Bank, Cellular
Adaptation and Injury, Inflammation and Healing, Immune System Disorders, Fluid
and Electrolyte Imbalances, Cardiovascular Pathophysiology, Respiratory
Disorders, Endocrine Diseases, Renal Dysfunction, Neurological Conditions,
Detailed Rationales and Complete Revision Material
Question 1: A 72-year-old male with a history of hypertension presents with a
sudden onset of severe, tearing chest pain radiating to his back. His blood pressure
is 180/100 mmHg in his right arm and 130/80 mmHg in his left arm. Which of the
following pathophysiological processes is most likely responsible for his
presentation?
A. Rupture of an atherosclerotic plaque in the coronary artery
B. Dissection of the tunica media of the aorta
C. Occlusion of the pulmonary artery by a thrombus
D. Spasm of the esophageal smooth muscle
CORRECT ANSWER: B. Dissection of the tunica media of the aorta
Rationale:The patient's presentation of acute, tearing chest pain radiating to the back,
along with a differential blood pressure between arms, is classic for an aortic
dissection. This occurs when a tear in the intima allows blood to enter the tunica media,
creating a false lumen that can propagate and compromise branch vessels, leading to
pulse deficits.
Question 2: A 65-year-old female with a long history of type 2 diabetes mellitus is
diagnosed with chronic kidney disease. Her hemoglobin A1c is 9.2%. Which of the
following best describes the primary mechanism by which chronic hyperglycemia
contributes to her renal pathology?
A. Non-enzymatic glycosylation of basement membrane proteins leading to thickening
B. Direct toxic effect of glucose on the glomerular podocytes
C. Autoimmune destruction of the renal tubules
D. Ischemic injury due to macrovascular atherosclerosis
CORRECT ANSWER: A. Non-enzymatic glycosylation of basement membrane
proteins leading to thickening
Rationale:Chronic hyperglycemia leads to the formation of advanced glycation end-
products (AGEs) through non-enzymatic glycosylation. These AGEs accumulate in the
glomerular basement membrane, causing thickening and increased permeability, which
is a hallmark of diabetic nephropathy. This process also stimulates mesangial
expansion and fibrosis.
Question 3: A patient with a history of heart failure develops ascites and peripheral
edema. This fluid accumulation is primarily due to which of the following
pathophysiological mechanisms?
,A. Decreased plasma oncotic pressure due to liver failure
B. Increased hydrostatic pressure in the venous system
C. Increased capillary permeability due to systemic inflammation
D. Lymphatic obstruction causing impaired fluid return
CORRECT ANSWER: B. Increased hydrostatic pressure in the venous system
Rationale:In heart failure, the heart's inability to pump effectively leads to a backup of
blood, increasing venous hydrostatic pressure. This elevated pressure forces fluid out of
the capillaries and into the interstitial space, leading to edema and, when severe in the
liver and portal circulation, ascites.
Question 4: A 45-year-old male presents with jaundice, dark urine, and clay-
colored stools. Laboratory tests reveal elevated direct bilirubin and alkaline
phosphatase. This clinical picture is most consistent with which type of jaundice?
A. Pre-hepatic jaundice
B. Hepatic jaundice
C. Post-hepatic (obstructive) jaundice
D. Unconjugated hyperbilirubinemia
CORRECT ANSWER: C. Post-hepatic (obstructive) jaundice
Rationale:The presence of dark urine, clay-colored stools, and elevated direct
(conjugated) bilirubin with a high alkaline phosphatase indicates an obstruction in the
biliary tree. This prevents conjugated bilirubin from reaching the intestines, where it is
normally converted to urobilinogen (causing brown stool), and it backs up into the
blood, being excreted in the urine.
Question 5: A patient with severe sepsis develops acute respiratory distress
syndrome (ARDS). Which of the following pathophysiological changes is the
hallmark of this condition?
A. Increased alveolar surface tension due to surfactant deficiency
B. Diffuse alveolar damage leading to increased capillary permeability
C. Bronchoconstriction and mucus hypersecretion
D. Atelectasis due to obstruction of airways by a foreign body
CORRECT ANSWER: B. Diffuse alveolar damage leading to increased capillary
permeability
Rationale:ARDS is characterized by an acute inflammatory response in the lung
parenchyma, often triggered by a systemic insult like sepsis. This causes diffuse
alveolar damage, which disrupts the alveolar-capillary membrane and leads to
increased permeability. This results in the leakage of protein-rich fluid into the alveolar
spaces, causing pulmonary edema, impaired gas exchange, and stiff lungs.
,Question 6: A child is diagnosed with cystic fibrosis. Which of the following best
describes the underlying genetic defect and its primary physiological
consequence?
A. Mutation in the CFTR gene leading to defective chloride transport and thick, viscous
secretions
B. Deletion of a phenylalanine residue in the alpha-1 antitrypsin protein
C. Autosomal dominant mutation causing abnormal hemoglobin structure
D. Mutation in the gene encoding for dystrophin protein
CORRECT ANSWER: A. Mutation in the CFTR gene leading to defective chloride
transport and thick, viscous secretions
Rationale:Cystic fibrosis is caused by a mutation in the cystic fibrosis transmembrane
conductance regulator (CFTR) gene, most commonly a deletion of phenylalanine at
position 508. This defect impairs chloride transport across epithelial cell membranes,
leading to increased sodium and water absorption. This results in the production of
thick, viscous secretions that obstruct various organ systems, including the lungs,
pancreas, and biliary tract.
Question 7: A 68-year-old male with a 40-pack-year smoking history presents with a
chronic cough, hemoptysis, and weight loss. Imaging reveals a central mass in his
right lung. A biopsy confirms small cell lung cancer (SCLC). Which of the following
paraneoplastic syndromes is most commonly associated with this type of lung
cancer?
A. Hypercalcemia
B. Syndrome of Inappropriate Antidiuretic Hormone (SIADH)
C. Hypertrophic pulmonary osteoarthropathy
D. Gynecomastia
CORRECT ANSWER: B. Syndrome of Inappropriate Antidiuretic Hormone (SIADH)
Rationale:Small cell lung cancer (SCLC) is a neuroendocrine tumor that is highly
associated with paraneoplastic syndromes. The most common is SIADH, where the
tumor ectopically produces antidiuretic hormone (ADH). This leads to water retention,
hyponatremia, and concentrated urine. SCLC is also associated with Cushing's
syndrome due to ectopic ACTH production.
Question 8: A patient is diagnosed with a deep vein thrombosis (DVT) in the left leg.
A major concern is the risk of a pulmonary embolism (PE). What is the most direct
pathophysiological event leading to PE from a DVT?
A. A piece of the thrombus breaks off and travels through the arterial system to the
lungs
B. The thrombus extends proximally and obstructs the femoral vein
C. A piece of the thrombus embolizes and travels through the venous system to the
pulmonary artery
, D. The thrombus causes local inflammation leading to a secondary clot in the
pulmonary vasculature
CORRECT ANSWER: C. A piece of the thrombus embolizes and travels through the
venous system to the pulmonary artery
Rationale:An embolus from a DVT, usually originating in the deep veins of the legs,
travels through the inferior vena cava, into the right atrium, right ventricle, and then
lodges in the pulmonary artery or its branches. This causes a pulmonary embolism,
obstructing pulmonary blood flow and leading to ventilation-perfusion (V/Q) mismatch
and potential right heart strain.
Question 9: A patient with a history of gout presents with an acutely painful,
swollen, and red great toe. Which of the following pathophysiological processes is
the primary cause of this inflammatory response?
A. Deposition of uric acid crystals in the synovial fluid and joint space
B. Autoimmune destruction of the joint cartilage
C. Infection of the joint by Staphylococcus aureus
D. Degeneration of the articular cartilage due to repetitive stress
CORRECT ANSWER: A. Deposition of uric acid crystals in the synovial fluid and joint
space
Rationale:Gout is caused by hyperuricemia, leading to the deposition of monosodium
urate crystals in joints and soft tissues. The crystals are phagocytosed by macrophages
and neutrophils, which then activate the inflammasome, leading to the release of pro-
inflammatory cytokines like IL-1β. This cascade results in the acute, intense
inflammatory response characteristic of a gout attack.
Question 10: A 55-year-old female is diagnosed with iron deficiency anemia. Which
of the following laboratory findings would be most consistent with this diagnosis?
A. High serum ferritin and high serum iron
B. Low serum ferritin and low serum iron
C. High total iron-binding capacity (TIBC) and high serum ferritin
D. Low serum iron and low total iron-binding capacity (TIBC)
CORRECT ANSWER: B. Low serum ferritin and low serum iron
Rationale:Iron deficiency anemia is characterized by a depletion of iron stores. Ferritin
is the primary storage protein for iron, so its level will be low. Serum iron will also be low.
The total iron-binding capacity (TIBC), which reflects the body's need for iron, is
typically elevated or high-normal in true iron deficiency.
Question 11: A 72-year-old patient is admitted with a hip fracture following a fall.
He has a history of osteoporosis. Which of the following best describes the
underlying pathophysiology of this condition?
