NURS 5432 ADVANCED
PATHOPHYSIOLOGY FINAL EXAM
QUESTIONS AND ANSWERS
1. Which compensatory mechanism is activated in response to decreased cardiac output in
heart failure, leading to increased systemic vascular resistance and fluid retention?
A. Activation of the Parasympathetic Nervous System
B. Activation of the Renin-Angiotensin-Aldosterone System (RAAS)
C. Release of Atrial Natriuretic Peptide (ANP)
D. Inhibition of Antidiuretic Hormone (ADH)
Answer: B
Conceptual Explanation: Decreased cardiac output triggers the RAAS, leading to
vasoconstriction and sodium/water retention to increase blood volume, though it often
worsens heart failure long-term.
2. In the pathophysiology of Type 1 Diabetes Mellitus, what is the primary mechanism of
beta-cell destruction?
A. Insulin resistance in peripheral tissues
,B. T-cell mediated autoimmune destruction
C. Amyloid deposition in the pancreas
D. Viral infection of the alpha cells
Answer: B
Conceptual Explanation: Type 1 DM is characterized by an autoimmune process where T-
cells destroy insulin-producing beta cells in the islets of Langerhans.
3. A patient with Chronic Obstructive Pulmonary Disease (COPD) presents with barrel chest.
This clinical finding is primarily due to:
A. Air trapping and alveolar hyperinflation
B. Alveolar collapse (atelectasis)
C. Pulmonary edema
D. Hypertrophy of the diaphragm
Answer: A
Conceptual Explanation: Chronic airflow obstruction leads to air trapping during
expiration, which increases the functional residual capacity and expands the thoracic cage
into a barrel shape.
4. Which type of hypersensitivity reaction involves the formation of antigen-antibody
complexes that deposit in vessel walls or extravascular tissues?
A. Type I (IgE-mediated)
, B. Type II (Tissue-specific)
C. Type IV (Cell-mediated)
D. Type III (Immune complex-mediated)
Answer: D
Conceptual Explanation: Type III hypersensitivity is caused by the deposition of insoluble
antigen-antibody complexes in tissues, leading to complement activation and inflammation.
5. What is the hallmark physiological change in the early stages of shock, regardless of the
cause?
A. Impaired cellular metabolism due to inadequate tissue perfusion
B. Hypotension
C. Metabolic alkalosis
D. Decreased heart rate
Answer: A
Conceptual Explanation: Shock is fundamentally defined by the failure of the circulatory
system to provide adequate oxygen and nutrients to tissues, leading to cellular dysfunction.
6. In Chronic Kidney Disease (CKD), why does secondary hyperparathyroidism occur?
A. Increased intestinal absorption of calcium
B. Excessive production of Vitamin D by the kidneys
PATHOPHYSIOLOGY FINAL EXAM
QUESTIONS AND ANSWERS
1. Which compensatory mechanism is activated in response to decreased cardiac output in
heart failure, leading to increased systemic vascular resistance and fluid retention?
A. Activation of the Parasympathetic Nervous System
B. Activation of the Renin-Angiotensin-Aldosterone System (RAAS)
C. Release of Atrial Natriuretic Peptide (ANP)
D. Inhibition of Antidiuretic Hormone (ADH)
Answer: B
Conceptual Explanation: Decreased cardiac output triggers the RAAS, leading to
vasoconstriction and sodium/water retention to increase blood volume, though it often
worsens heart failure long-term.
2. In the pathophysiology of Type 1 Diabetes Mellitus, what is the primary mechanism of
beta-cell destruction?
A. Insulin resistance in peripheral tissues
,B. T-cell mediated autoimmune destruction
C. Amyloid deposition in the pancreas
D. Viral infection of the alpha cells
Answer: B
Conceptual Explanation: Type 1 DM is characterized by an autoimmune process where T-
cells destroy insulin-producing beta cells in the islets of Langerhans.
3. A patient with Chronic Obstructive Pulmonary Disease (COPD) presents with barrel chest.
This clinical finding is primarily due to:
A. Air trapping and alveolar hyperinflation
B. Alveolar collapse (atelectasis)
C. Pulmonary edema
D. Hypertrophy of the diaphragm
Answer: A
Conceptual Explanation: Chronic airflow obstruction leads to air trapping during
expiration, which increases the functional residual capacity and expands the thoracic cage
into a barrel shape.
4. Which type of hypersensitivity reaction involves the formation of antigen-antibody
complexes that deposit in vessel walls or extravascular tissues?
A. Type I (IgE-mediated)
, B. Type II (Tissue-specific)
C. Type IV (Cell-mediated)
D. Type III (Immune complex-mediated)
Answer: D
Conceptual Explanation: Type III hypersensitivity is caused by the deposition of insoluble
antigen-antibody complexes in tissues, leading to complement activation and inflammation.
5. What is the hallmark physiological change in the early stages of shock, regardless of the
cause?
A. Impaired cellular metabolism due to inadequate tissue perfusion
B. Hypotension
C. Metabolic alkalosis
D. Decreased heart rate
Answer: A
Conceptual Explanation: Shock is fundamentally defined by the failure of the circulatory
system to provide adequate oxygen and nutrients to tissues, leading to cellular dysfunction.
6. In Chronic Kidney Disease (CKD), why does secondary hyperparathyroidism occur?
A. Increased intestinal absorption of calcium
B. Excessive production of Vitamin D by the kidneys
