RASMUSSEN PATHOPHYSIOLOGY EXAM 2
QUESTIONS AND 100% VERIFIED
ANSWERS WITH RATIONALES GRADED A+
LATEST
1. A 56-year-old patient presents with shortness of breath and peripheral
edema. Lab results show elevated BNP levels. Which condition is most
consistent with these findings?
A. Chronic obstructive pulmonary disease
B. Heart failure
C. Pulmonary embolism
D. Asthma
Answer: B. Heart failure
Rationale: BNP (B-type natriuretic peptide) is released in response to ventricular
stretch and is a key marker for heart failure. Shortness of breath and peripheral
edema are consistent with volume overload seen in heart failure.
2. A patient with type 2 diabetes develops polyuria, polydipsia, and blurred
vision. Which pathophysiologic process explains these symptoms?
A. Hyperinsulinemia
B. Hyperglycemia-induced osmotic diuresis
C. Autoimmune destruction of beta cells
D. Ketoacidosis
Answer: B. Hyperglycemia-induced osmotic diuresis
Rationale: High blood glucose levels exceed renal threshold, causing glucose to
spill into urine, drawing water with it, leading to polyuria, polydipsia, and
dehydration-related blurred vision.
,3. Which of the following best describes the mechanism of a myocardial
infarction?
A. Autoimmune attack on cardiac myocytes
B. Coronary artery obstruction leading to ischemia and necrosis
C. Pulmonary embolus causing right heart strain
D. Sudden arrhythmia without structural heart disease
Answer: B. Coronary artery obstruction leading to ischemia and necrosis
Rationale: MI occurs due to blockage of coronary blood flow, resulting in
ischemia and death of myocardial tissue.
4. A 32-year-old patient develops a deep vein thrombosis after prolonged
immobilization. Which triad explains the pathophysiology?
A. Virchow’s triad
B. Beck’s triad
C. Charcot’s triad
D. Monroe-Kellie triad
Answer: A. Virchow’s triad
Rationale: Virchow’s triad (venous stasis, endothelial injury, hypercoagulability)
describes the main risk factors for thrombus formation.
5. Which electrolyte imbalance is most likely to cause prolonged QT interval
and ventricular arrhythmias?
A. Hyperkalemia
B. Hypokalemia
C. Hypernatremia
D. Hypocalcemia
Answer: B. Hypokalemia
Rationale: Low potassium affects cardiac repolarization, leading to prolonged QT
and increased risk of ventricular arrhythmias.
,6. A patient presents with jaundice, elevated bilirubin, and dark urine.
Laboratory tests show elevated AST and ALT. What is the most likely
pathophysiologic process?
A. Hemolytic anemia
B. Hepatocellular injury
C. Cholestasis
D. Pancreatitis
Answer: B. Hepatocellular injury
Rationale: Elevated AST and ALT indicate liver cell injury. Jaundice and dark
urine reflect bilirubin accumulation due to hepatocellular dysfunction.
7. Which type of hypersensitivity reaction involves IgE-mediated mast cell
degranulation?
A. Type I
B. Type II
C. Type III
D. Type IV
Answer: A. Type I
Rationale: Type I hypersensitivity is immediate and mediated by IgE antibodies,
causing mast cell degranulation and release of histamine (e.g., anaphylaxis,
allergies).
8. A 45-year-old patient develops sudden chest pain and dyspnea. ECG shows
ST-segment elevation in leads II, III, and aVF. Which artery is most likely
affected?
A. Left anterior descending
B. Right coronary artery
C. Circumflex artery
D. Pulmonary artery
, Answer: B. Right coronary artery
Rationale: ST elevation in II, III, and aVF indicates an inferior wall MI,
commonly due to right coronary artery obstruction.
9. In chronic kidney disease, which electrolyte abnormality is most commonly
associated with cardiac arrhythmias?
A. Hypokalemia
B. Hyperkalemia
C. Hyponatremia
D. Hypocalcemia
Answer: B. Hyperkalemia
Rationale: CKD leads to decreased potassium excretion, resulting in
hyperkalemia, which affects cardiac conduction and can cause arrhythmias.
10. A patient with cirrhosis develops confusion, asterixis, and elevated
ammonia levels. Which mechanism explains these findings?
A. Hepatic encephalopathy due to impaired ammonia metabolism
B. Portal hypertension causing varices
C. Cholestasis causing jaundice
D. Hepatocellular carcinoma
Answer: A. Hepatic encephalopathy due to impaired ammonia metabolism
Rationale: Damaged hepatocytes cannot convert ammonia to urea, leading to
neurotoxicity, manifesting as confusion and asterixis.
11. Which type of shock is characterized by severe vasodilation and relative
hypovolemia?
A. Hypovolemic shock
B. Cardiogenic shock
C. Distributive shock
D. Obstructive shock
QUESTIONS AND 100% VERIFIED
ANSWERS WITH RATIONALES GRADED A+
LATEST
1. A 56-year-old patient presents with shortness of breath and peripheral
edema. Lab results show elevated BNP levels. Which condition is most
consistent with these findings?
A. Chronic obstructive pulmonary disease
B. Heart failure
C. Pulmonary embolism
D. Asthma
Answer: B. Heart failure
Rationale: BNP (B-type natriuretic peptide) is released in response to ventricular
stretch and is a key marker for heart failure. Shortness of breath and peripheral
edema are consistent with volume overload seen in heart failure.
2. A patient with type 2 diabetes develops polyuria, polydipsia, and blurred
vision. Which pathophysiologic process explains these symptoms?
A. Hyperinsulinemia
B. Hyperglycemia-induced osmotic diuresis
C. Autoimmune destruction of beta cells
D. Ketoacidosis
Answer: B. Hyperglycemia-induced osmotic diuresis
Rationale: High blood glucose levels exceed renal threshold, causing glucose to
spill into urine, drawing water with it, leading to polyuria, polydipsia, and
dehydration-related blurred vision.
,3. Which of the following best describes the mechanism of a myocardial
infarction?
A. Autoimmune attack on cardiac myocytes
B. Coronary artery obstruction leading to ischemia and necrosis
C. Pulmonary embolus causing right heart strain
D. Sudden arrhythmia without structural heart disease
Answer: B. Coronary artery obstruction leading to ischemia and necrosis
Rationale: MI occurs due to blockage of coronary blood flow, resulting in
ischemia and death of myocardial tissue.
4. A 32-year-old patient develops a deep vein thrombosis after prolonged
immobilization. Which triad explains the pathophysiology?
A. Virchow’s triad
B. Beck’s triad
C. Charcot’s triad
D. Monroe-Kellie triad
Answer: A. Virchow’s triad
Rationale: Virchow’s triad (venous stasis, endothelial injury, hypercoagulability)
describes the main risk factors for thrombus formation.
5. Which electrolyte imbalance is most likely to cause prolonged QT interval
and ventricular arrhythmias?
A. Hyperkalemia
B. Hypokalemia
C. Hypernatremia
D. Hypocalcemia
Answer: B. Hypokalemia
Rationale: Low potassium affects cardiac repolarization, leading to prolonged QT
and increased risk of ventricular arrhythmias.
,6. A patient presents with jaundice, elevated bilirubin, and dark urine.
Laboratory tests show elevated AST and ALT. What is the most likely
pathophysiologic process?
A. Hemolytic anemia
B. Hepatocellular injury
C. Cholestasis
D. Pancreatitis
Answer: B. Hepatocellular injury
Rationale: Elevated AST and ALT indicate liver cell injury. Jaundice and dark
urine reflect bilirubin accumulation due to hepatocellular dysfunction.
7. Which type of hypersensitivity reaction involves IgE-mediated mast cell
degranulation?
A. Type I
B. Type II
C. Type III
D. Type IV
Answer: A. Type I
Rationale: Type I hypersensitivity is immediate and mediated by IgE antibodies,
causing mast cell degranulation and release of histamine (e.g., anaphylaxis,
allergies).
8. A 45-year-old patient develops sudden chest pain and dyspnea. ECG shows
ST-segment elevation in leads II, III, and aVF. Which artery is most likely
affected?
A. Left anterior descending
B. Right coronary artery
C. Circumflex artery
D. Pulmonary artery
, Answer: B. Right coronary artery
Rationale: ST elevation in II, III, and aVF indicates an inferior wall MI,
commonly due to right coronary artery obstruction.
9. In chronic kidney disease, which electrolyte abnormality is most commonly
associated with cardiac arrhythmias?
A. Hypokalemia
B. Hyperkalemia
C. Hyponatremia
D. Hypocalcemia
Answer: B. Hyperkalemia
Rationale: CKD leads to decreased potassium excretion, resulting in
hyperkalemia, which affects cardiac conduction and can cause arrhythmias.
10. A patient with cirrhosis develops confusion, asterixis, and elevated
ammonia levels. Which mechanism explains these findings?
A. Hepatic encephalopathy due to impaired ammonia metabolism
B. Portal hypertension causing varices
C. Cholestasis causing jaundice
D. Hepatocellular carcinoma
Answer: A. Hepatic encephalopathy due to impaired ammonia metabolism
Rationale: Damaged hepatocytes cannot convert ammonia to urea, leading to
neurotoxicity, manifesting as confusion and asterixis.
11. Which type of shock is characterized by severe vasodilation and relative
hypovolemia?
A. Hypovolemic shock
B. Cardiogenic shock
C. Distributive shock
D. Obstructive shock
