NUR-641E ADVANCED
PATHOPHYSIOLOGY FINAL EXAM
PREP
1. Which cellular adaptation process is characterized by the replacement of one mature cell
type by another, often as a result of chronic irritation?
A. Atrophy
B. Hypertrophy
C. Dysplasia
D. Metaplasia
Answer: D
Conceptual Explanation: Metaplasia is a reversible replacement of one mature cell type
by another mature cell type, such as the change in bronchial lining from ciliated columnar
to stratified squamous epithelium in smokers.
2. In the Renin-Angiotensin-Aldosterone System (RAAS), what is the primary role of
Angiotensin-Converting Enzyme (ACE)?
A. It stimulates the release of Renin from the kidneys.
B. It breaks down Bradykinin to prevent hypotension.
,C. It triggers the direct release of Aldosterone from the adrenal cortex.
D. It converts Angiotensin I into the potent vasoconstrictor Angiotensin II.
Answer: D
Conceptual Explanation: ACE is primarily located in the pulmonary capillaries and is
responsible for converting Angiotensin I to Angiotensin II, which increases blood pressure
through vasoconstriction and stimulation of aldosterone.
3. Which electrolyte imbalance is most likely to result in a shortened QT interval and muscle
weakness?
A. Hypocalcemia
B. Hypokalemia
C. Hypercalcemia
D. Hypermagnesemia
Answer: C
Conceptual Explanation: Hypercalcemia causes a shortened QT interval on an EKG and
decreases neuromuscular excitability, leading to muscle weakness and lethargy.
4. What is the pathophysiological hallmark of Nephrotic Syndrome?
A. Increased glomerular permeability leading to massive proteinuria
B. Gross hematuria and hypertension
C. Reduced glomerular filtration rate due to inflammatory occlusion
, D. Chronic urinary tract infections causing renal scarring
Answer: A
Conceptual Explanation: Nephrotic syndrome is defined by damage to the glomerular
basement membrane, leading to proteinuria (>3.5g/day), hypoalbuminemia, and
generalized edema.
5. Which type of hypersensitivity reaction is mediated by IgE and involves the release of
histamine from mast cells?
A. Type III (Immune Complex)
B. Type II (Cytotoxic)
C. Type I (Immediate)
D. Type IV (Delayed)
Answer: C
Conceptual Explanation: Type I hypersensitivity is IgE-mediated, leading to mast cell
degranulation and the release of histamine, common in allergic rhinitis and anaphylaxis.
6. In the context of Heart Failure, what does the term ‘systolic dysfunction’ specifically refer
to?
A. Inability of the heart to relax and fill properly.
B. Right-sided heart failure caused by chronic lung disease.
C. Increased pressure within the pulmonary venous system.
PATHOPHYSIOLOGY FINAL EXAM
PREP
1. Which cellular adaptation process is characterized by the replacement of one mature cell
type by another, often as a result of chronic irritation?
A. Atrophy
B. Hypertrophy
C. Dysplasia
D. Metaplasia
Answer: D
Conceptual Explanation: Metaplasia is a reversible replacement of one mature cell type
by another mature cell type, such as the change in bronchial lining from ciliated columnar
to stratified squamous epithelium in smokers.
2. In the Renin-Angiotensin-Aldosterone System (RAAS), what is the primary role of
Angiotensin-Converting Enzyme (ACE)?
A. It stimulates the release of Renin from the kidneys.
B. It breaks down Bradykinin to prevent hypotension.
,C. It triggers the direct release of Aldosterone from the adrenal cortex.
D. It converts Angiotensin I into the potent vasoconstrictor Angiotensin II.
Answer: D
Conceptual Explanation: ACE is primarily located in the pulmonary capillaries and is
responsible for converting Angiotensin I to Angiotensin II, which increases blood pressure
through vasoconstriction and stimulation of aldosterone.
3. Which electrolyte imbalance is most likely to result in a shortened QT interval and muscle
weakness?
A. Hypocalcemia
B. Hypokalemia
C. Hypercalcemia
D. Hypermagnesemia
Answer: C
Conceptual Explanation: Hypercalcemia causes a shortened QT interval on an EKG and
decreases neuromuscular excitability, leading to muscle weakness and lethargy.
4. What is the pathophysiological hallmark of Nephrotic Syndrome?
A. Increased glomerular permeability leading to massive proteinuria
B. Gross hematuria and hypertension
C. Reduced glomerular filtration rate due to inflammatory occlusion
, D. Chronic urinary tract infections causing renal scarring
Answer: A
Conceptual Explanation: Nephrotic syndrome is defined by damage to the glomerular
basement membrane, leading to proteinuria (>3.5g/day), hypoalbuminemia, and
generalized edema.
5. Which type of hypersensitivity reaction is mediated by IgE and involves the release of
histamine from mast cells?
A. Type III (Immune Complex)
B. Type II (Cytotoxic)
C. Type I (Immediate)
D. Type IV (Delayed)
Answer: C
Conceptual Explanation: Type I hypersensitivity is IgE-mediated, leading to mast cell
degranulation and the release of histamine, common in allergic rhinitis and anaphylaxis.
6. In the context of Heart Failure, what does the term ‘systolic dysfunction’ specifically refer
to?
A. Inability of the heart to relax and fill properly.
B. Right-sided heart failure caused by chronic lung disease.
C. Increased pressure within the pulmonary venous system.
