NR507 Advanced Pathophysiology Quiz 70 Questions | Accurate &
Verified Answers to Pass Actual Exam
1. Which of the following cellular adaptations is characterized by an increase in
the number of cells in an organ or tissue?
A. Atrophy
B. Hypertrophy
C. Metaplasia
D. Hyperplasia
Answer: D
Explanation: Hyperplasia is an increase in the number of cells resulting from an increased
rate of cellular division.
2. Which type of necrosis is most commonly associated with hypoxic injury in
the central nervous system?
A. Coagulative necrosis
B. Fat necrosis
C. Caseous necrosis
D. Liquefactive necrosis
Answer: D
,Explanation: Liquefactive necrosis occurs in the brain due to the high lipid and enzyme
content of neural cells.
3. In the RAAS, which enzyme is responsible for converting Angiotensin I to
Angiotensin II?
A. Angiotensin-converting enzyme (ACE)
B. Renin
C. Aldosterone synthase
D. Antidiuretic hormone
Answer: A
Explanation: ACE is primarily found in the pulmonary capillaries and converts Angiotensin
I to the potent vasoconstrictor Angiotensin II.
4. Which electrolyte imbalance is most likely to cause peaked T waves on an
ECG?
A. Hypokalemia
B. Hyponatremia
C. Hyperkalemia
D. Hypocalcemia
Answer: C
Explanation: Hyperkalemia increases the excitability of the myocardium and typically
causes tall, peaked T waves.
,5. What is the primary pathophysiology behind Type 1 Diabetes Mellitus?
A. Autoimmune destruction of pancreatic beta cells
B. Excessive glucagon production
C. Insulin resistance in peripheral tissues
D. Increased hepatic glucose production
Answer: A
Explanation: Type 1 DM is characterized by absolute insulin deficiency due to the T-cell
mediated destruction of beta cells.
6. Which of the following describes the Frank-Starling Law of the heart?
A. The higher the heart rate, the lower the stroke volume
B. Afterload is the primary determinant of cardiac output
C. The heart rate is determined by the SA node only
D. The greater the stretch of the ventricular muscle, the stronger the contraction
Answer: D
Explanation: The Frank-Starling Law states that the stroke volume increases in response
to an increase in the volume of blood filling the heart (end diastolic volume).
7. A patient with chronic renal failure is likely to develop which type of anemia?
A. Iron deficiency anemia
B. Pernicious anemia
C. Aplastic anemia
, D. Anemia of chronic disease due to decreased erythropoietin
Answer: D
Explanation: The kidneys produce erythropoietin; in chronic renal failure, its production
decreases, leading to reduced red blood cell synthesis.
8. What is the hallmark clinical manifestation of Nephrotic Syndrome?
A. Hematuria
B. Hypotension
C. Massive proteinuria (>3.5g/day)
D. Increased glomerular filtration rate
Answer: C
Explanation: Nephrotic syndrome is characterized by heavy proteinuria,
hypoalbuminemia, and edema.
9. Which immunoglobulin is primarily involved in Type I hypersensitivity
reactions?
A. IgG
B. IgM
C. IgE
D. IgA
Answer: C
Verified Answers to Pass Actual Exam
1. Which of the following cellular adaptations is characterized by an increase in
the number of cells in an organ or tissue?
A. Atrophy
B. Hypertrophy
C. Metaplasia
D. Hyperplasia
Answer: D
Explanation: Hyperplasia is an increase in the number of cells resulting from an increased
rate of cellular division.
2. Which type of necrosis is most commonly associated with hypoxic injury in
the central nervous system?
A. Coagulative necrosis
B. Fat necrosis
C. Caseous necrosis
D. Liquefactive necrosis
Answer: D
,Explanation: Liquefactive necrosis occurs in the brain due to the high lipid and enzyme
content of neural cells.
3. In the RAAS, which enzyme is responsible for converting Angiotensin I to
Angiotensin II?
A. Angiotensin-converting enzyme (ACE)
B. Renin
C. Aldosterone synthase
D. Antidiuretic hormone
Answer: A
Explanation: ACE is primarily found in the pulmonary capillaries and converts Angiotensin
I to the potent vasoconstrictor Angiotensin II.
4. Which electrolyte imbalance is most likely to cause peaked T waves on an
ECG?
A. Hypokalemia
B. Hyponatremia
C. Hyperkalemia
D. Hypocalcemia
Answer: C
Explanation: Hyperkalemia increases the excitability of the myocardium and typically
causes tall, peaked T waves.
,5. What is the primary pathophysiology behind Type 1 Diabetes Mellitus?
A. Autoimmune destruction of pancreatic beta cells
B. Excessive glucagon production
C. Insulin resistance in peripheral tissues
D. Increased hepatic glucose production
Answer: A
Explanation: Type 1 DM is characterized by absolute insulin deficiency due to the T-cell
mediated destruction of beta cells.
6. Which of the following describes the Frank-Starling Law of the heart?
A. The higher the heart rate, the lower the stroke volume
B. Afterload is the primary determinant of cardiac output
C. The heart rate is determined by the SA node only
D. The greater the stretch of the ventricular muscle, the stronger the contraction
Answer: D
Explanation: The Frank-Starling Law states that the stroke volume increases in response
to an increase in the volume of blood filling the heart (end diastolic volume).
7. A patient with chronic renal failure is likely to develop which type of anemia?
A. Iron deficiency anemia
B. Pernicious anemia
C. Aplastic anemia
, D. Anemia of chronic disease due to decreased erythropoietin
Answer: D
Explanation: The kidneys produce erythropoietin; in chronic renal failure, its production
decreases, leading to reduced red blood cell synthesis.
8. What is the hallmark clinical manifestation of Nephrotic Syndrome?
A. Hematuria
B. Hypotension
C. Massive proteinuria (>3.5g/day)
D. Increased glomerular filtration rate
Answer: C
Explanation: Nephrotic syndrome is characterized by heavy proteinuria,
hypoalbuminemia, and edema.
9. Which immunoglobulin is primarily involved in Type I hypersensitivity
reactions?
A. IgG
B. IgM
C. IgE
D. IgA
Answer: C
