NR507/NR 507 Midterm Exam (2025/2026
Update) Advanced Pathophysiology | 100%
Verified Questions and Correct Answers |
Grade A Chamberlain
This midterm exam for NR507 Advanced Pathophysiology (2025/2026) features 50 verified
multiple-choice questions covering cellular adaptations, inflammation, immune disorders,
neoplasia, and system-specific pathophysiology (cardiovascular, respiratory, etc.). Questions
align with Chamberlain curriculum, with four options, correct answer in RED, and short
rationale with key concepts, clinical implications, and exam tips.
Question 1: What is the primary mechanism of cellular hypertrophy in cardiac muscle?
A. Increased cell number
B. Increased cell size due to protein synthesis
C. Cell death and replacement
D. Decreased apoptosis
Correct Answer: B. Increased cell size due to protein synthesis
Rationale: Hypertrophy = enlarged cells from workload; in heart, pressure overload (e.g., HTN)
increases sarcomeres. Implication: Leads to HF. Exam tip: Hypertrophy = size, hyperplasia =
number.
Question 2: In acute inflammation, what is the role of histamine?
A. Chemotaxis for neutrophils
B. Vasodilation and increased permeability
C. Phagocytosis
D. Tissue repair
Correct Answer: B. Vasodilation and increased permeability
Rationale: Histamine from mast cells causes redness, edema. Implication: Allows leukocyte
extravasation. Exam tip: Histamine – vascular changes.
Question 3: What is the hallmark of type I hypersensitivity?
A. Immune complex deposition
B. IgE-mediated mast cell degranulation
, C. T-cell mediated
D. Antibody-mediated cytotoxicity
Correct Answer: B. IgE-mediated mast cell degranulation
Rationale: Type I = immediate (anaphylaxis, allergy). Implication: Epinephrine for
anaphylaxis. Exam tip: Type I – IgE, immediate.
Question 4: What is the primary difference between benign and malignant neoplasms?
A. Size
B. Invasive growth and metastasis
C. Location
D. Symptoms
Correct Answer: B. Invasive growth and metastasis
Rationale: Malignant infiltrates and spreads. Implication: Biopsy for staging. Exam tip:
Malignant – invasive/metastatic.
Question 5: In atherosclerosis, what is the role of LDL?
A. Protective
B. Oxidation and foam cell formation
C. Vasodilation
D. Plaque stabilization
Correct Answer: B. Oxidation and foam cell formation
Rationale: Oxidized LDL triggers inflammation. Implication: Statins lower LDL. Exam tip:
Atherosclerosis – LDL oxidation.
Question 6: What is the pathophysiology of type 2 diabetes?
A. Autoimmune beta cell destruction
B. Insulin resistance and beta cell dysfunction
C. Glucagon deficiency
D. Cortisol excess
Correct Answer: B. Insulin resistance and beta cell dysfunction
Rationale: Peripheral resistance, relative insulin deficiency. Implication: Lifestyle + metformin.
Exam tip: Type 2 – resistance vs type 1 autoimmune.
Question 7: What is the primary cause of acute respiratory distress syndrome (ARDS)?
A. Airway obstruction
B. Increased permeability of alveolar-capillary membrane
C. Pneumothorax
D. Pleural effusion
Update) Advanced Pathophysiology | 100%
Verified Questions and Correct Answers |
Grade A Chamberlain
This midterm exam for NR507 Advanced Pathophysiology (2025/2026) features 50 verified
multiple-choice questions covering cellular adaptations, inflammation, immune disorders,
neoplasia, and system-specific pathophysiology (cardiovascular, respiratory, etc.). Questions
align with Chamberlain curriculum, with four options, correct answer in RED, and short
rationale with key concepts, clinical implications, and exam tips.
Question 1: What is the primary mechanism of cellular hypertrophy in cardiac muscle?
A. Increased cell number
B. Increased cell size due to protein synthesis
C. Cell death and replacement
D. Decreased apoptosis
Correct Answer: B. Increased cell size due to protein synthesis
Rationale: Hypertrophy = enlarged cells from workload; in heart, pressure overload (e.g., HTN)
increases sarcomeres. Implication: Leads to HF. Exam tip: Hypertrophy = size, hyperplasia =
number.
Question 2: In acute inflammation, what is the role of histamine?
A. Chemotaxis for neutrophils
B. Vasodilation and increased permeability
C. Phagocytosis
D. Tissue repair
Correct Answer: B. Vasodilation and increased permeability
Rationale: Histamine from mast cells causes redness, edema. Implication: Allows leukocyte
extravasation. Exam tip: Histamine – vascular changes.
Question 3: What is the hallmark of type I hypersensitivity?
A. Immune complex deposition
B. IgE-mediated mast cell degranulation
, C. T-cell mediated
D. Antibody-mediated cytotoxicity
Correct Answer: B. IgE-mediated mast cell degranulation
Rationale: Type I = immediate (anaphylaxis, allergy). Implication: Epinephrine for
anaphylaxis. Exam tip: Type I – IgE, immediate.
Question 4: What is the primary difference between benign and malignant neoplasms?
A. Size
B. Invasive growth and metastasis
C. Location
D. Symptoms
Correct Answer: B. Invasive growth and metastasis
Rationale: Malignant infiltrates and spreads. Implication: Biopsy for staging. Exam tip:
Malignant – invasive/metastatic.
Question 5: In atherosclerosis, what is the role of LDL?
A. Protective
B. Oxidation and foam cell formation
C. Vasodilation
D. Plaque stabilization
Correct Answer: B. Oxidation and foam cell formation
Rationale: Oxidized LDL triggers inflammation. Implication: Statins lower LDL. Exam tip:
Atherosclerosis – LDL oxidation.
Question 6: What is the pathophysiology of type 2 diabetes?
A. Autoimmune beta cell destruction
B. Insulin resistance and beta cell dysfunction
C. Glucagon deficiency
D. Cortisol excess
Correct Answer: B. Insulin resistance and beta cell dysfunction
Rationale: Peripheral resistance, relative insulin deficiency. Implication: Lifestyle + metformin.
Exam tip: Type 2 – resistance vs type 1 autoimmune.
Question 7: What is the primary cause of acute respiratory distress syndrome (ARDS)?
A. Airway obstruction
B. Increased permeability of alveolar-capillary membrane
C. Pneumothorax
D. Pleural effusion
