NR 507 ADVANCED
PATHOPHYSIOLOGY FINAL EXAM
STUDY GUIDE QUESTIONS WITH
VERIFIED ANSWERS 2026/2027.
CHAMBERLAIN
1. A patient is diagnosed with Barrett esophagus. This represents which type of cellular
adaptation?
A. Atrophy
B. Metaplasia
C. Hyperplasia
D. Dysplasia
Answer: B
Conceptual Explanation: Metaplasia is the reversible replacement of one mature cell type
by another, often in response to chronic irritation, such as gastric acid in the esophagus.
2. Which process is characterized by programmed cell death without triggering an
inflammatory response?
A. Coagulative necrosis
B. Liquefactive necrosis
,C. Autophagy
D. Apoptosis
Answer: D
Conceptual Explanation: Apoptosis is a distinct, programmed process of cellular self-
destruction that does not involve the inflammatory response, unlike necrosis.
3. Which mechanism of cellular injury is most common in clinical practice?
A. Chemical injury
B. Infectious injury
C. Hypoxic injury
D. Genetic injury
Answer: C
Conceptual Explanation: Hypoxia, or lack of sufficient oxygen, is the single most common
cause of cellular injury and leads to ischemia.
4. In the Renin-Angiotensin-Aldosterone System (RAAS), what is the primary role of
Angiotensin II?
A. Inhibiting ADH secretion
B. Systemic vasodilation
C. Stimulating aldosterone secretion and vasoconstriction
, D. Promoting sodium excretion by the kidneys
Answer: C
Conceptual Explanation: Angiotensin II is a potent vasoconstrictor and stimulates the
adrenal cortex to release aldosterone, which increases sodium and water reabsorption.
5. What is the hallmark of Type I Hypersensitivity reactions?
A. IgE-mediated mast cell degranulation
B. Activation of T-cytotoxic cells
C. Immune complex deposition
D. IgG and IgM tissue-specific binding
Answer: A
Conceptual Explanation: Type I hypersensitivity is mediated by IgE antibodies binding to
mast cells, leading to the release of histamine upon allergen re-exposure.
6. Which electrolyte imbalance is most likely to cause a positive Chvostek and Trousseau
sign?
A. Hyperkalemia
B. Hyponatremia
C. Hypermagnesemia
D. Hypocalcemia
PATHOPHYSIOLOGY FINAL EXAM
STUDY GUIDE QUESTIONS WITH
VERIFIED ANSWERS 2026/2027.
CHAMBERLAIN
1. A patient is diagnosed with Barrett esophagus. This represents which type of cellular
adaptation?
A. Atrophy
B. Metaplasia
C. Hyperplasia
D. Dysplasia
Answer: B
Conceptual Explanation: Metaplasia is the reversible replacement of one mature cell type
by another, often in response to chronic irritation, such as gastric acid in the esophagus.
2. Which process is characterized by programmed cell death without triggering an
inflammatory response?
A. Coagulative necrosis
B. Liquefactive necrosis
,C. Autophagy
D. Apoptosis
Answer: D
Conceptual Explanation: Apoptosis is a distinct, programmed process of cellular self-
destruction that does not involve the inflammatory response, unlike necrosis.
3. Which mechanism of cellular injury is most common in clinical practice?
A. Chemical injury
B. Infectious injury
C. Hypoxic injury
D. Genetic injury
Answer: C
Conceptual Explanation: Hypoxia, or lack of sufficient oxygen, is the single most common
cause of cellular injury and leads to ischemia.
4. In the Renin-Angiotensin-Aldosterone System (RAAS), what is the primary role of
Angiotensin II?
A. Inhibiting ADH secretion
B. Systemic vasodilation
C. Stimulating aldosterone secretion and vasoconstriction
, D. Promoting sodium excretion by the kidneys
Answer: C
Conceptual Explanation: Angiotensin II is a potent vasoconstrictor and stimulates the
adrenal cortex to release aldosterone, which increases sodium and water reabsorption.
5. What is the hallmark of Type I Hypersensitivity reactions?
A. IgE-mediated mast cell degranulation
B. Activation of T-cytotoxic cells
C. Immune complex deposition
D. IgG and IgM tissue-specific binding
Answer: A
Conceptual Explanation: Type I hypersensitivity is mediated by IgE antibodies binding to
mast cells, leading to the release of histamine upon allergen re-exposure.
6. Which electrolyte imbalance is most likely to cause a positive Chvostek and Trousseau
sign?
A. Hyperkalemia
B. Hyponatremia
C. Hypermagnesemia
D. Hypocalcemia
