NURS 6501 ADVANCED PATHOPHYSIOLOGY MIDTERM EXAM STUDY
GUIDE & PRACTICE QUESTION BANK (2026–2027 EDITION) 200
COMPREHENSIVE QUESTIONS, ANSWERS & RATIONALES FOR
GRADUATE NURSING SUCCESS
1. Which cellular adaptation is characterized by an increase in the size of existing cells?
A. Hyperplasia
B. Dysplasia
C. Hypertrophy
D. Metaplasia
Answer: C. Hypertrophy
Hypertrophy occurs when cells increase in size, resulting in enlargement of the affected tissue or
organ. Cardiac muscle enlargement in hypertension is a common example.
2. Apoptosis is best described as:
A. Cell swelling due to injury
B. Programmed cell death
C. Tissue necrosis from ischemia
D. Irreversible mitochondrial damage
Answer: B. Programmed cell death
Apoptosis is a regulated process that eliminates damaged or unnecessary cells without provoking
significant inflammation.
3. Which electrolyte abnormality is most commonly associated with cardiac dysrhythmias?
A. Hypermagnesemia
B. Hypercalcemia
C. Hypokalemia
D. Hypernatremia
Answer: C. Hypokalemia
Potassium plays a critical role in cardiac conduction. Low potassium levels increase the risk of
ventricular arrhythmias and ECG changes.
4. The primary function of neutrophils during acute inflammation is:
,A. Antibody production
B. Histamine release
C. Phagocytosis
D. Collagen synthesis
Answer: C. Phagocytosis
Neutrophils are the first leukocytes to arrive at sites of acute inflammation and engulf pathogens and
cellular debris.
5. A patient with chronic renal failure is most likely to develop:
A. Respiratory alkalosis
B. Metabolic acidosis
C. Metabolic alkalosis
D. Respiratory acidosis
Answer: B. Metabolic acidosis
Impaired kidney function reduces acid excretion and bicarbonate regeneration, leading to metabolic
acidosis.
6. Which cytokine is primarily responsible for fever?
A. IL-1
B. IL-10
C. IL-4
D. IL-13
Answer: A. IL-1
Interleukin-1 acts on the hypothalamus to increase the body's temperature set point, producing fever.
7. The movement of water across a semipermeable membrane from low solute concentration to high
solute concentration is called:
A. Diffusion
B. Active transport
C. Filtration
D. Osmosis
Answer: D. Osmosis
Osmosis is the passive movement of water toward areas of higher solute concentration.
,8. Which type of necrosis is most commonly associated with myocardial infarction?
A. Fat necrosis
B. Caseous necrosis
C. Coagulative necrosis
D. Liquefactive necrosis
Answer: C. Coagulative necrosis
Coagulative necrosis preserves tissue architecture temporarily and is characteristic of ischemic injury
in solid organs.
9. The major intracellular cation is:
A. Sodium
B. Calcium
C. Potassium
D. Chloride
Answer: C. Potassium
Potassium is the predominant intracellular cation and is essential for maintaining membrane
potential.
10. Which mechanism contributes most to edema formation in heart failure?
A. Decreased capillary permeability
B. Increased plasma oncotic pressure
C. Increased hydrostatic pressure
D. Increased lymphatic drainage
Answer: C. Increased hydrostatic pressure
Heart failure causes venous congestion, increasing hydrostatic pressure and forcing fluid into
interstitial tissues.
11. A deficiency of intrinsic factor results in:
A. Iron-deficiency anemia
B. Aplastic anemia
C. Pernicious anemia
D. Hemolytic anemia
Answer: C. Pernicious anemia
Intrinsic factor is required for vitamin B12 absorption. Deficiency leads to megaloblastic anemia.
, 12. Which white blood cell is most closely associated with allergic reactions?
A. Monocyte
B. Neutrophil
C. Eosinophil
D. Basophil
Answer: C. Eosinophil
Eosinophils increase during allergic responses and parasitic infections.
13. The Frank-Starling law describes:
A. Cardiac electrical conduction
B. Relationship between preload and stroke volume
C. Coronary perfusion pressure
D. Peripheral vascular resistance
Answer: B. Relationship between preload and stroke volume
Increased ventricular filling stretches myocardial fibers, increasing contractile force and stroke
volume.
14. Which hormone is secreted by pancreatic beta cells?
A. Glucagon
B. Cortisol
C. Insulin
D. Somatostatin
Answer: C. Insulin
Beta cells produce insulin, which lowers blood glucose by facilitating cellular uptake.
15. The most common cause of hypoxemia is:
A. Hyperventilation
B. Ventilation-perfusion mismatch
C. Polycythemia
D. Hyperkalemia
Answer: B. Ventilation-perfusion mismatch
V/Q mismatch occurs when ventilation and perfusion are not appropriately matched within the lungs.
GUIDE & PRACTICE QUESTION BANK (2026–2027 EDITION) 200
COMPREHENSIVE QUESTIONS, ANSWERS & RATIONALES FOR
GRADUATE NURSING SUCCESS
1. Which cellular adaptation is characterized by an increase in the size of existing cells?
A. Hyperplasia
B. Dysplasia
C. Hypertrophy
D. Metaplasia
Answer: C. Hypertrophy
Hypertrophy occurs when cells increase in size, resulting in enlargement of the affected tissue or
organ. Cardiac muscle enlargement in hypertension is a common example.
2. Apoptosis is best described as:
A. Cell swelling due to injury
B. Programmed cell death
C. Tissue necrosis from ischemia
D. Irreversible mitochondrial damage
Answer: B. Programmed cell death
Apoptosis is a regulated process that eliminates damaged or unnecessary cells without provoking
significant inflammation.
3. Which electrolyte abnormality is most commonly associated with cardiac dysrhythmias?
A. Hypermagnesemia
B. Hypercalcemia
C. Hypokalemia
D. Hypernatremia
Answer: C. Hypokalemia
Potassium plays a critical role in cardiac conduction. Low potassium levels increase the risk of
ventricular arrhythmias and ECG changes.
4. The primary function of neutrophils during acute inflammation is:
,A. Antibody production
B. Histamine release
C. Phagocytosis
D. Collagen synthesis
Answer: C. Phagocytosis
Neutrophils are the first leukocytes to arrive at sites of acute inflammation and engulf pathogens and
cellular debris.
5. A patient with chronic renal failure is most likely to develop:
A. Respiratory alkalosis
B. Metabolic acidosis
C. Metabolic alkalosis
D. Respiratory acidosis
Answer: B. Metabolic acidosis
Impaired kidney function reduces acid excretion and bicarbonate regeneration, leading to metabolic
acidosis.
6. Which cytokine is primarily responsible for fever?
A. IL-1
B. IL-10
C. IL-4
D. IL-13
Answer: A. IL-1
Interleukin-1 acts on the hypothalamus to increase the body's temperature set point, producing fever.
7. The movement of water across a semipermeable membrane from low solute concentration to high
solute concentration is called:
A. Diffusion
B. Active transport
C. Filtration
D. Osmosis
Answer: D. Osmosis
Osmosis is the passive movement of water toward areas of higher solute concentration.
,8. Which type of necrosis is most commonly associated with myocardial infarction?
A. Fat necrosis
B. Caseous necrosis
C. Coagulative necrosis
D. Liquefactive necrosis
Answer: C. Coagulative necrosis
Coagulative necrosis preserves tissue architecture temporarily and is characteristic of ischemic injury
in solid organs.
9. The major intracellular cation is:
A. Sodium
B. Calcium
C. Potassium
D. Chloride
Answer: C. Potassium
Potassium is the predominant intracellular cation and is essential for maintaining membrane
potential.
10. Which mechanism contributes most to edema formation in heart failure?
A. Decreased capillary permeability
B. Increased plasma oncotic pressure
C. Increased hydrostatic pressure
D. Increased lymphatic drainage
Answer: C. Increased hydrostatic pressure
Heart failure causes venous congestion, increasing hydrostatic pressure and forcing fluid into
interstitial tissues.
11. A deficiency of intrinsic factor results in:
A. Iron-deficiency anemia
B. Aplastic anemia
C. Pernicious anemia
D. Hemolytic anemia
Answer: C. Pernicious anemia
Intrinsic factor is required for vitamin B12 absorption. Deficiency leads to megaloblastic anemia.
, 12. Which white blood cell is most closely associated with allergic reactions?
A. Monocyte
B. Neutrophil
C. Eosinophil
D. Basophil
Answer: C. Eosinophil
Eosinophils increase during allergic responses and parasitic infections.
13. The Frank-Starling law describes:
A. Cardiac electrical conduction
B. Relationship between preload and stroke volume
C. Coronary perfusion pressure
D. Peripheral vascular resistance
Answer: B. Relationship between preload and stroke volume
Increased ventricular filling stretches myocardial fibers, increasing contractile force and stroke
volume.
14. Which hormone is secreted by pancreatic beta cells?
A. Glucagon
B. Cortisol
C. Insulin
D. Somatostatin
Answer: C. Insulin
Beta cells produce insulin, which lowers blood glucose by facilitating cellular uptake.
15. The most common cause of hypoxemia is:
A. Hyperventilation
B. Ventilation-perfusion mismatch
C. Polycythemia
D. Hyperkalemia
Answer: B. Ventilation-perfusion mismatch
V/Q mismatch occurs when ventilation and perfusion are not appropriately matched within the lungs.
