PATHO EXAM 2026–2027
100 QUESTIONS AND CORRECT ANSWERS
ALREADY GRADED A+ | 100% VERIFIED
Medicine & Pathophysiology
Academic Medical Programs / Standardized Health Sciences Testing
Key Domains: Cellular Injury & Adaptation | Inflammation & Immunity | Neoplasia |
Hematologic Disorders | Cardiovascular Pathophysiology | Pulmonary Disorders | Endocrine
Dysfunction
The official, verified question count for the Pathophysiology Examination is exactly 100 multiple-choice
questions.
,ANSWER FORMAT: Correct answers are displayed in bold cyan text, accompanied by
rationales explaining pathophysiological mechanisms and clinical reasoning. Answer
distribution (A, B, C, D) is intentionally randomized.
DOMAIN I: CELLULAR INJURY AND ADAPTATION (Questions 1-15)
Question 1. Pulmonary hypertension is defined as mean pulmonary artery pressure:
A. >15 mmHg
B. >25 mmHg at rest
C. >35 mmHg
D. >45 mmHg
✓ Correct Answer: B
Rationale: Pulmonary hypertension is defined as mean pulmonary artery pressure >25 mmHg at
rest (normal <20 mmHg). It can be idiopathic or secondary to lung disease, left heart disease, or
thromboembolism.
Question 2. Which is a characteristic of malignant tumors?
A. Slow growth
B. Well-differentiated cells
C. Invasion and metastasis
D. Encapsulated
✓ Correct Answer: C
Rationale: Malignant tumors are characterized by invasion of surrounding tissues and potential
for metastasis. They also show rapid growth, poor differentiation (anaplasia), and lack of
encapsulation.
Question 3. Metabolic syndrome includes:
A. Only obesity
B. Central obesity, insulin resistance, hypertension, and dyslipidemia
C. Only diabetes
D. Only hypertension
✓ Correct Answer: B
, Rationale: Metabolic syndrome includes central obesity (increased waist circumference), insulin
resistance/hyperglycemia, hypertension, and dyslipidemia (high triglycerides, low HDL). It
increases cardiovascular risk.
Question 4. Type II hypersensitivity involves:
A. IgE-mediated reactions
B. Antibody-mediated cytotoxicity against cell surface antigens
C. Immune complex deposition
D. T cell-mediated damage
✓ Correct Answer: B
Rationale: Type II hypersensitivity involves IgG or IgM antibodies directed against cell surface or
extracellular matrix antigens, leading to cell destruction via complement activation or ADCC.
Question 5. Type IV hypersensitivity is:
A. Antibody-mediated
B. T cell-mediated (delayed-type) hypersensitivity
C. Complement-mediated
D. IgE-mediated
✓ Correct Answer: B
Rationale: Type IV hypersensitivity is T cell-mediated (delayed-type), occurring 48-72 hours after
antigen exposure. Examples: tuberculin test, contact dermatitis, transplant rejection.
Question 6. Diabetic ketoacidosis (DKA) is characterized by:
A. Hypoglycemia
B. Hyperglycemia, ketosis, and metabolic acidosis
C. Hypokalemia only
D. Hyperosmolar state only
✓ Correct Answer: B
Rationale: DKA involves hyperglycemia (>250 mg/dL), ketosis (ketone production from lipolysis),
and metabolic acidosis (pH <7.3, bicarb <18). It's more common in type 1 diabetes but can occur in
type 2.
Question 7. Metaplasia is defined as:
A. Uncontrolled cell growth
B. Reversible replacement of one differentiated cell type with another
C. Increase in cell number
D. Cell death due to injury
100 QUESTIONS AND CORRECT ANSWERS
ALREADY GRADED A+ | 100% VERIFIED
Medicine & Pathophysiology
Academic Medical Programs / Standardized Health Sciences Testing
Key Domains: Cellular Injury & Adaptation | Inflammation & Immunity | Neoplasia |
Hematologic Disorders | Cardiovascular Pathophysiology | Pulmonary Disorders | Endocrine
Dysfunction
The official, verified question count for the Pathophysiology Examination is exactly 100 multiple-choice
questions.
,ANSWER FORMAT: Correct answers are displayed in bold cyan text, accompanied by
rationales explaining pathophysiological mechanisms and clinical reasoning. Answer
distribution (A, B, C, D) is intentionally randomized.
DOMAIN I: CELLULAR INJURY AND ADAPTATION (Questions 1-15)
Question 1. Pulmonary hypertension is defined as mean pulmonary artery pressure:
A. >15 mmHg
B. >25 mmHg at rest
C. >35 mmHg
D. >45 mmHg
✓ Correct Answer: B
Rationale: Pulmonary hypertension is defined as mean pulmonary artery pressure >25 mmHg at
rest (normal <20 mmHg). It can be idiopathic or secondary to lung disease, left heart disease, or
thromboembolism.
Question 2. Which is a characteristic of malignant tumors?
A. Slow growth
B. Well-differentiated cells
C. Invasion and metastasis
D. Encapsulated
✓ Correct Answer: C
Rationale: Malignant tumors are characterized by invasion of surrounding tissues and potential
for metastasis. They also show rapid growth, poor differentiation (anaplasia), and lack of
encapsulation.
Question 3. Metabolic syndrome includes:
A. Only obesity
B. Central obesity, insulin resistance, hypertension, and dyslipidemia
C. Only diabetes
D. Only hypertension
✓ Correct Answer: B
, Rationale: Metabolic syndrome includes central obesity (increased waist circumference), insulin
resistance/hyperglycemia, hypertension, and dyslipidemia (high triglycerides, low HDL). It
increases cardiovascular risk.
Question 4. Type II hypersensitivity involves:
A. IgE-mediated reactions
B. Antibody-mediated cytotoxicity against cell surface antigens
C. Immune complex deposition
D. T cell-mediated damage
✓ Correct Answer: B
Rationale: Type II hypersensitivity involves IgG or IgM antibodies directed against cell surface or
extracellular matrix antigens, leading to cell destruction via complement activation or ADCC.
Question 5. Type IV hypersensitivity is:
A. Antibody-mediated
B. T cell-mediated (delayed-type) hypersensitivity
C. Complement-mediated
D. IgE-mediated
✓ Correct Answer: B
Rationale: Type IV hypersensitivity is T cell-mediated (delayed-type), occurring 48-72 hours after
antigen exposure. Examples: tuberculin test, contact dermatitis, transplant rejection.
Question 6. Diabetic ketoacidosis (DKA) is characterized by:
A. Hypoglycemia
B. Hyperglycemia, ketosis, and metabolic acidosis
C. Hypokalemia only
D. Hyperosmolar state only
✓ Correct Answer: B
Rationale: DKA involves hyperglycemia (>250 mg/dL), ketosis (ketone production from lipolysis),
and metabolic acidosis (pH <7.3, bicarb <18). It's more common in type 1 diabetes but can occur in
type 2.
Question 7. Metaplasia is defined as:
A. Uncontrolled cell growth
B. Reversible replacement of one differentiated cell type with another
C. Increase in cell number
D. Cell death due to injury
