NR507 FINAL EXAM STUDY GUIDE 2026/2027 / NR 507 WEEK
5 - 8 ADVANCED PATHOPHYSIOLOGY QUESTIONS AND
ANSWERS () (VERIFIED ANSWERS)-
CHAMBERLAIN
Original NR507 Advanced Pathophysiology Practice Exam (2026–2027)
Table of Contents
1. Cardiovascular Disorders (Questions 1–15)
2. Pulmonary Disorders (Questions 16–30)
3. Renal Disorders (Questions 31–40)
4. Endocrine Disorders (Questions 41–55)
5. Neurologic Disorders (Questions 56–65)
6. Hematologic & Immune Disorders (Questions 66–75)
7. Gastrointestinal & Hepatic Disorders (Questions 76–85)
8. Musculoskeletal & Integumentary Disorders (Questions 86–90)
9. Multisystem Clinical Case Studies (Questions 91–100)
Part 1 – Cardiovascular Disorders (Questions 1–15)
Question 1
A 68-year-old man presents with chest pain that began while climbing stairs. Which
pathophysiologic mechanism most commonly causes stable angina?
A. Coronary artery vasospasm
B. Atherosclerotic narrowing causing decreased myocardial oxygen supply
C. Complete coronary artery occlusion
D. Myocarditis
Correct Answer
,B. Atherosclerotic narrowing causing decreased myocardial oxygen supply
Rationale
Stable angina occurs when fixed atherosclerotic plaque limits coronary blood flow during
increased myocardial oxygen demand such as exercise. Symptoms improve with rest or
nitroglycerin because oxygen demand decreases.
• A is characteristic of Prinzmetal (variant) angina.
• C produces myocardial infarction.
• D causes inflammation rather than ischemia.
Question 2
Which biomarker is considered the most sensitive and specific indicator of myocardial
injury?
A. CK-MB
B. Myoglobin
C. Troponin I
D. LDH
Correct Answer
C. Troponin I
Rationale
Cardiac troponins (Troponin I and Troponin T) are the preferred biomarkers because they are
highly specific for myocardial cell injury and remain elevated for several days after infarction.
• CK-MB is less specific.
• Myoglobin rises early but lacks specificity.
• LDH is rarely used today.
Question 3
Which event most commonly initiates an acute myocardial infarction?
A. Progressive ventricular hypertrophy
,B. Rupture of an atherosclerotic plaque with thrombus formation
C. Pulmonary embolism
D. Coronary vasospasm alone
Correct Answer
B. Rupture of an atherosclerotic plaque with thrombus formation
Rationale
Most myocardial infarctions occur after rupture of an unstable plaque, exposing thrombogenic
material that activates platelets and coagulation, leading to coronary artery occlusion.
Question 4
Left-sided heart failure initially causes which physiologic change?
A. Peripheral edema
B. Pulmonary congestion
C. Hepatic enlargement
D. Splenomegaly
Correct Answer
B. Pulmonary congestion
Rationale
Failure of the left ventricle increases pressure in the pulmonary veins, causing pulmonary edema
and congestion, which manifest as dyspnea, orthopnea, and crackles.
Peripheral edema is more typical of right-sided heart failure.
Question 5
A patient with chronic hypertension develops left ventricular hypertrophy. This represents
which type of adaptation?
A. Atrophy
B. Hyperplasia
C. Hypertrophy
, D. Dysplasia
Correct Answer
C. Hypertrophy
Rationale
Cardiac muscle cells enlarge rather than increase in number. Chronic pressure overload causes
myocardial hypertrophy to maintain cardiac output.
Question 6
Which hormone is primarily responsible for sodium and water retention in heart failure?
A. Cortisol
B. Aldosterone
C. Insulin
D. Glucagon
Correct Answer
B. Aldosterone
Rationale
Activation of the renin-angiotensin-aldosterone system (RAAS) increases aldosterone secretion,
promoting sodium and water retention, increasing preload, and worsening heart failure.
Question 7
Which finding is most consistent with right-sided heart failure?
A. Crackles
B. Pulmonary edema
C. Jugular venous distention
D. Orthopnea
Correct Answer
C. Jugular venous distention
Rationale
5 - 8 ADVANCED PATHOPHYSIOLOGY QUESTIONS AND
ANSWERS () (VERIFIED ANSWERS)-
CHAMBERLAIN
Original NR507 Advanced Pathophysiology Practice Exam (2026–2027)
Table of Contents
1. Cardiovascular Disorders (Questions 1–15)
2. Pulmonary Disorders (Questions 16–30)
3. Renal Disorders (Questions 31–40)
4. Endocrine Disorders (Questions 41–55)
5. Neurologic Disorders (Questions 56–65)
6. Hematologic & Immune Disorders (Questions 66–75)
7. Gastrointestinal & Hepatic Disorders (Questions 76–85)
8. Musculoskeletal & Integumentary Disorders (Questions 86–90)
9. Multisystem Clinical Case Studies (Questions 91–100)
Part 1 – Cardiovascular Disorders (Questions 1–15)
Question 1
A 68-year-old man presents with chest pain that began while climbing stairs. Which
pathophysiologic mechanism most commonly causes stable angina?
A. Coronary artery vasospasm
B. Atherosclerotic narrowing causing decreased myocardial oxygen supply
C. Complete coronary artery occlusion
D. Myocarditis
Correct Answer
,B. Atherosclerotic narrowing causing decreased myocardial oxygen supply
Rationale
Stable angina occurs when fixed atherosclerotic plaque limits coronary blood flow during
increased myocardial oxygen demand such as exercise. Symptoms improve with rest or
nitroglycerin because oxygen demand decreases.
• A is characteristic of Prinzmetal (variant) angina.
• C produces myocardial infarction.
• D causes inflammation rather than ischemia.
Question 2
Which biomarker is considered the most sensitive and specific indicator of myocardial
injury?
A. CK-MB
B. Myoglobin
C. Troponin I
D. LDH
Correct Answer
C. Troponin I
Rationale
Cardiac troponins (Troponin I and Troponin T) are the preferred biomarkers because they are
highly specific for myocardial cell injury and remain elevated for several days after infarction.
• CK-MB is less specific.
• Myoglobin rises early but lacks specificity.
• LDH is rarely used today.
Question 3
Which event most commonly initiates an acute myocardial infarction?
A. Progressive ventricular hypertrophy
,B. Rupture of an atherosclerotic plaque with thrombus formation
C. Pulmonary embolism
D. Coronary vasospasm alone
Correct Answer
B. Rupture of an atherosclerotic plaque with thrombus formation
Rationale
Most myocardial infarctions occur after rupture of an unstable plaque, exposing thrombogenic
material that activates platelets and coagulation, leading to coronary artery occlusion.
Question 4
Left-sided heart failure initially causes which physiologic change?
A. Peripheral edema
B. Pulmonary congestion
C. Hepatic enlargement
D. Splenomegaly
Correct Answer
B. Pulmonary congestion
Rationale
Failure of the left ventricle increases pressure in the pulmonary veins, causing pulmonary edema
and congestion, which manifest as dyspnea, orthopnea, and crackles.
Peripheral edema is more typical of right-sided heart failure.
Question 5
A patient with chronic hypertension develops left ventricular hypertrophy. This represents
which type of adaptation?
A. Atrophy
B. Hyperplasia
C. Hypertrophy
, D. Dysplasia
Correct Answer
C. Hypertrophy
Rationale
Cardiac muscle cells enlarge rather than increase in number. Chronic pressure overload causes
myocardial hypertrophy to maintain cardiac output.
Question 6
Which hormone is primarily responsible for sodium and water retention in heart failure?
A. Cortisol
B. Aldosterone
C. Insulin
D. Glucagon
Correct Answer
B. Aldosterone
Rationale
Activation of the renin-angiotensin-aldosterone system (RAAS) increases aldosterone secretion,
promoting sodium and water retention, increasing preload, and worsening heart failure.
Question 7
Which finding is most consistent with right-sided heart failure?
A. Crackles
B. Pulmonary edema
C. Jugular venous distention
D. Orthopnea
Correct Answer
C. Jugular venous distention
Rationale
