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NURS 6501 Advanced Pathophysiology Midterm Exam
2026/2027 | Latest Version with Complete Solutions |
100% Pass Guaranteed | Graded A+
1. A 28-year-old bodybuilder begins a rigorous training regimen and experiences significant
muscle enlargement after six months. Which cellular adaptation best explains this
change?
A. Hyperplasia
B. Dysplasia
C. Hypertrophy
D. Metaplasia
☑ Correct Answer: C
☑ Explanation: Hypertrophy refers to an increase in the size of existing cells,
resulting in tissue enlargement. Skeletal muscle enlargement from exercise is a classic
example of physiologic hypertrophy. Hyperplasia involves an increase in cell number;
dysplasia refers to abnormal cell development; metaplasia is the reversible replacement
of one mature cell type with another.
,2
2. A pathologist examines a tissue sample and notes that a cell has undergone
programmed cell death without triggering an inflammatory response. This process is
best described as:
A. Coagulative necrosis
B. Apoptosis
C. Liquefactive necrosis
D. Fat necrosis
☑ Correct Answer: B
☑ Explanation: Apoptosis is a regulated, energy-dependent form of
programmed cell death that eliminates damaged or unnecessary cells without provoking
significant inflammation. Coagulative, liquefactive, and fat necrosis are forms of
pathologic cell death that typically incite an inflammatory response.
3. A patient with chronic renal failure is most likely to develop which acid-base imbalance?
A. Respiratory alkalosis
B. Metabolic acidosis
C. Metabolic alkalosis
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D. Respiratory acidosis
☑ Correct Answer: B
☑ Explanation: Impaired kidney function reduces the excretion of hydrogen ions
and the regeneration of bicarbonate, leading to metabolic acidosis. Respiratory alkalosis
would be caused by hyperventilation, metabolic alkalosis by excessive bicarbonate
retention or hydrogen loss, and respiratory acidosis by hypoventilation.
4. A 52-year-old male smoker with a 30-pack-year history presents with progressive
dyspnea and weight loss. Chest imaging reveals a large pleural effusion with elevated
LDH, protein, and positive cytology for malignant cells. Which mechanism best explains
this effusion?
A. Increased capillary hydrostatic pressure
B. Decreased plasma oncotic pressure
C. Lymphatic obstruction by tumor cells
D. Increased capillary permeability due to inflammation
☑ Correct Answer: C
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☑ Explanation: Malignant pleural effusions are commonly caused by lymphatic
obstruction by tumor cells, which impairs fluid reabsorption. Increased hydrostatic
pressure occurs in heart failure; decreased oncotic pressure occurs in nephrotic
syndrome; increased capillary permeability occurs in inflammatory conditions such as
pneumonia.
5. Autocrine stimulation is the ability of cancer cells to:
A. Invade adjacent tissues directly
B. Secrete growth factors that stimulate their own growth
C. Metastasize through the bloodstream
D. Evade apoptosis by downregulating p53
☑ Correct Answer: B
☑ Explanation: Autocrine stimulation occurs when cancer cells produce growth
factors that bind to receptors on their own surface, creating a self-sustaining signaling
loop that promotes uncontrolled proliferation. Invasion, metastasis, and evasion of
apoptosis are separate hallmarks of cancer.
NURS 6501 Advanced Pathophysiology Midterm Exam
2026/2027 | Latest Version with Complete Solutions |
100% Pass Guaranteed | Graded A+
1. A 28-year-old bodybuilder begins a rigorous training regimen and experiences significant
muscle enlargement after six months. Which cellular adaptation best explains this
change?
A. Hyperplasia
B. Dysplasia
C. Hypertrophy
D. Metaplasia
☑ Correct Answer: C
☑ Explanation: Hypertrophy refers to an increase in the size of existing cells,
resulting in tissue enlargement. Skeletal muscle enlargement from exercise is a classic
example of physiologic hypertrophy. Hyperplasia involves an increase in cell number;
dysplasia refers to abnormal cell development; metaplasia is the reversible replacement
of one mature cell type with another.
,2
2. A pathologist examines a tissue sample and notes that a cell has undergone
programmed cell death without triggering an inflammatory response. This process is
best described as:
A. Coagulative necrosis
B. Apoptosis
C. Liquefactive necrosis
D. Fat necrosis
☑ Correct Answer: B
☑ Explanation: Apoptosis is a regulated, energy-dependent form of
programmed cell death that eliminates damaged or unnecessary cells without provoking
significant inflammation. Coagulative, liquefactive, and fat necrosis are forms of
pathologic cell death that typically incite an inflammatory response.
3. A patient with chronic renal failure is most likely to develop which acid-base imbalance?
A. Respiratory alkalosis
B. Metabolic acidosis
C. Metabolic alkalosis
,3
D. Respiratory acidosis
☑ Correct Answer: B
☑ Explanation: Impaired kidney function reduces the excretion of hydrogen ions
and the regeneration of bicarbonate, leading to metabolic acidosis. Respiratory alkalosis
would be caused by hyperventilation, metabolic alkalosis by excessive bicarbonate
retention or hydrogen loss, and respiratory acidosis by hypoventilation.
4. A 52-year-old male smoker with a 30-pack-year history presents with progressive
dyspnea and weight loss. Chest imaging reveals a large pleural effusion with elevated
LDH, protein, and positive cytology for malignant cells. Which mechanism best explains
this effusion?
A. Increased capillary hydrostatic pressure
B. Decreased plasma oncotic pressure
C. Lymphatic obstruction by tumor cells
D. Increased capillary permeability due to inflammation
☑ Correct Answer: C
, 4
☑ Explanation: Malignant pleural effusions are commonly caused by lymphatic
obstruction by tumor cells, which impairs fluid reabsorption. Increased hydrostatic
pressure occurs in heart failure; decreased oncotic pressure occurs in nephrotic
syndrome; increased capillary permeability occurs in inflammatory conditions such as
pneumonia.
5. Autocrine stimulation is the ability of cancer cells to:
A. Invade adjacent tissues directly
B. Secrete growth factors that stimulate their own growth
C. Metastasize through the bloodstream
D. Evade apoptosis by downregulating p53
☑ Correct Answer: B
☑ Explanation: Autocrine stimulation occurs when cancer cells produce growth
factors that bind to receptors on their own surface, creating a self-sustaining signaling
loop that promotes uncontrolled proliferation. Invasion, metastasis, and evasion of
apoptosis are separate hallmarks of cancer.
