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NSG 5140: Advanced Pathophysiology
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1. Type 1 Diabetes Mellitus Pathophysiology
Question: Which of the following best describes the pathophysiology of Type 1
Diabetes Mellitus?
A. Insulin resistance in peripheral tissues
B. Autoimmune destruction of pancreatic beta cells
C. Excess hepatic glucose production
D. Impaired insulin receptor function
Answer: B. Autoimmune destruction of pancreatic beta cells
Rationale: Type 1 diabetes results from autoimmune-mediated destruction of
pancreatic beta cells, leading to an absolute insulin deficiency.
2. Electrolyte Imbalance in Chronic Kidney Disease
Question: Which electrolyte imbalance is most commonly associated with chronic
kidney disease?
A. Hypokalemia
B. Hyperkalemia
C. Hypernatremia
D. Hypocalcemia
Answer: B. Hyperkalemia
Rationale: Chronic kidney disease reduces potassium excretion, leading to
hyperkalemia, which can result in cardiac arrhythmias.
, 2
3. Acid-Base Disturbance from Severe Diarrhea
Question: A patient presents with severe diarrhea. Which acid-base disturbance is
most likely?
A. Metabolic acidosis
B. Metabolic alkalosis
C. Respiratory acidosis
D. Respiratory alkalosis
Answer: A. Metabolic acidosis
Rationale: Loss of bicarbonate in diarrhea leads to metabolic acidosis.
4. RAAS Activation in Heart Failure
Question: In heart failure, activation of the renin-angiotensin-aldosterone system
(RAAS) primarily causes:
A. Vasodilation and decreased blood pressure
B. Sodium and water retention
C. Increased diuresis
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D. Bradycardia
Answer: B. Sodium and water retention
Rationale: RAAS activation increases sodium and water reabsorption to maintain
perfusion, which can worsen fluid overload in heart failure.
5. Multiple Sclerosis Pathophysiology
Question: Which of the following best describes the pathophysiology of multiple
sclerosis?
A. Autoimmune destruction of myelin in the CNS
B. Degeneration of peripheral nerves
C. Accumulation of amyloid plaques in the brain
D. Inflammation of the neuromuscular junction
Answer: A. Autoimmune destruction of myelin in the CNS
Rationale: Multiple sclerosis is an autoimmune demyelinating disorder affecting
the central nervous system, leading to impaired nerve conduction.
6. Condition Characterized by Excessive Cortisol Secretion
Question: Which condition is characterized by excessive cortisol secretion?
A. Addison's disease
B. Cushing's syndrome
C. Hypothyroidism
D. Pheochromocytoma
Answer: B. Cushing's syndrome
Rationale: Cushing's syndrome results from chronic cortisol excess, leading to
hyperglycemia, hypertension, and central obesity.
, 3
7. Tissue Injury Mechanism in Hypovolemic Shock
Question: What is the primary mechanism of tissue injury in hypovolemic shock?
A. Direct cytotoxicity
B. Decreased tissue perfusion leading to hypoxia
C. Autoimmune attack on organs
D. Overactivation of coagulation cascade
Answer: B. Decreased tissue perfusion leading to hypoxia
Rationale: Hypovolemic shock reduces circulating blood volume, decreasing
tissue oxygen delivery and causing cellular injury.
8. Lab Finding in Iron-Deficiency Anemia
Question: Which lab finding is consistent with iron-deficiency anemia?
A. High MCV and low ferritin
B. Low MCV and low ferritin
C. Normal MCV and high ferritin
D. Low MCV and high ferritin
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Answer: B. Low MCV and low ferritin
Rationale: Iron-deficiency anemia causes microcytic (low MCV), hypochromic
red cells with depleted iron stores (low ferritin).
9. Pathogenetic Mechanism in Rheumatoid Arthritis
Question: Which pathogenetic mechanism underlies rheumatoid arthritis?
A. Autoimmune-mediated joint inflammation
B. Degeneration of articular cartilage due to wear and tear
C. Deposition of uric acid crystals
D. Infectious joint inflammation
Answer: A. Autoimmune-mediated joint inflammation
Rationale: Rheumatoid arthritis involves an autoimmune attack on synovial
membranes, leading to chronic joint inflammation and destruction.
10. Blood Gas Abnormality in COPD
Question: A patient with COPD is most likely to have which blood gas
abnormality?
A. Respiratory alkalosis
B. Metabolic alkalosis
C. Respiratory acidosis
D. Metabolic acidosis
Answer: C. Respiratory acidosis
Rationale: COPD leads to hypoventilation and CO₂ retention, causing chronic
respiratory acidosis.
NSG 5140: Advanced Pathophysiology
Midterm Exam – Verified Q&A Bank
Get Instant Access to 100% Verified Test Bank Questions! |📘 Complete,
Accurate, and Up to Date | ✅ Fully Verified Answers |⚡ Instant Download
Available Right After Purchase |🎓 Perfect for Study Prep, Tutors, or Self-
Practice |💯 Trusted by Students & Educator
Smart Study HQ
1. Type 1 Diabetes Mellitus Pathophysiology
Question: Which of the following best describes the pathophysiology of Type 1
Diabetes Mellitus?
A. Insulin resistance in peripheral tissues
B. Autoimmune destruction of pancreatic beta cells
C. Excess hepatic glucose production
D. Impaired insulin receptor function
Answer: B. Autoimmune destruction of pancreatic beta cells
Rationale: Type 1 diabetes results from autoimmune-mediated destruction of
pancreatic beta cells, leading to an absolute insulin deficiency.
2. Electrolyte Imbalance in Chronic Kidney Disease
Question: Which electrolyte imbalance is most commonly associated with chronic
kidney disease?
A. Hypokalemia
B. Hyperkalemia
C. Hypernatremia
D. Hypocalcemia
Answer: B. Hyperkalemia
Rationale: Chronic kidney disease reduces potassium excretion, leading to
hyperkalemia, which can result in cardiac arrhythmias.
, 2
3. Acid-Base Disturbance from Severe Diarrhea
Question: A patient presents with severe diarrhea. Which acid-base disturbance is
most likely?
A. Metabolic acidosis
B. Metabolic alkalosis
C. Respiratory acidosis
D. Respiratory alkalosis
Answer: A. Metabolic acidosis
Rationale: Loss of bicarbonate in diarrhea leads to metabolic acidosis.
4. RAAS Activation in Heart Failure
Question: In heart failure, activation of the renin-angiotensin-aldosterone system
(RAAS) primarily causes:
A. Vasodilation and decreased blood pressure
B. Sodium and water retention
C. Increased diuresis
Smart Study HQ
D. Bradycardia
Answer: B. Sodium and water retention
Rationale: RAAS activation increases sodium and water reabsorption to maintain
perfusion, which can worsen fluid overload in heart failure.
5. Multiple Sclerosis Pathophysiology
Question: Which of the following best describes the pathophysiology of multiple
sclerosis?
A. Autoimmune destruction of myelin in the CNS
B. Degeneration of peripheral nerves
C. Accumulation of amyloid plaques in the brain
D. Inflammation of the neuromuscular junction
Answer: A. Autoimmune destruction of myelin in the CNS
Rationale: Multiple sclerosis is an autoimmune demyelinating disorder affecting
the central nervous system, leading to impaired nerve conduction.
6. Condition Characterized by Excessive Cortisol Secretion
Question: Which condition is characterized by excessive cortisol secretion?
A. Addison's disease
B. Cushing's syndrome
C. Hypothyroidism
D. Pheochromocytoma
Answer: B. Cushing's syndrome
Rationale: Cushing's syndrome results from chronic cortisol excess, leading to
hyperglycemia, hypertension, and central obesity.
, 3
7. Tissue Injury Mechanism in Hypovolemic Shock
Question: What is the primary mechanism of tissue injury in hypovolemic shock?
A. Direct cytotoxicity
B. Decreased tissue perfusion leading to hypoxia
C. Autoimmune attack on organs
D. Overactivation of coagulation cascade
Answer: B. Decreased tissue perfusion leading to hypoxia
Rationale: Hypovolemic shock reduces circulating blood volume, decreasing
tissue oxygen delivery and causing cellular injury.
8. Lab Finding in Iron-Deficiency Anemia
Question: Which lab finding is consistent with iron-deficiency anemia?
A. High MCV and low ferritin
B. Low MCV and low ferritin
C. Normal MCV and high ferritin
D. Low MCV and high ferritin
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Answer: B. Low MCV and low ferritin
Rationale: Iron-deficiency anemia causes microcytic (low MCV), hypochromic
red cells with depleted iron stores (low ferritin).
9. Pathogenetic Mechanism in Rheumatoid Arthritis
Question: Which pathogenetic mechanism underlies rheumatoid arthritis?
A. Autoimmune-mediated joint inflammation
B. Degeneration of articular cartilage due to wear and tear
C. Deposition of uric acid crystals
D. Infectious joint inflammation
Answer: A. Autoimmune-mediated joint inflammation
Rationale: Rheumatoid arthritis involves an autoimmune attack on synovial
membranes, leading to chronic joint inflammation and destruction.
10. Blood Gas Abnormality in COPD
Question: A patient with COPD is most likely to have which blood gas
abnormality?
A. Respiratory alkalosis
B. Metabolic alkalosis
C. Respiratory acidosis
D. Metabolic acidosis
Answer: C. Respiratory acidosis
Rationale: COPD leads to hypoventilation and CO₂ retention, causing chronic
respiratory acidosis.
