NU 641 ADVANCED
PATHOPHYSIOLOGY FINAL EXAM
QUESTIONS AND ANSWERS AND
EXPLANATIONS | LATEST - REGIS
1. Which physiological mechanism is primarily responsible for the development of edema in a
patient diagnosed with Nephrotic Syndrome?
A. Increased capillary hydrostatic pressure
B. Increased lymphatic obstruction
C. Decreased plasma oncotic pressure
D. Decreased capillary permeability
Answer: C
Conceptual Explanation: Nephrotic syndrome involves heavy proteinuria, which leads to
hypoalbuminemia. Reduced albumin decreases plasma oncotic pressure, allowing fluid to
leak into the interstitial space.
2. In the early stages of heart failure, the Heart activates the Renin-Angiotensin-Aldosterone
System (RAAS). What is the paradoxical long-term effect of this compensation?
A. Increased afterload and cardiac remodeling
B. Reduced cardiac workload due to sodium excretion
,C. Improved renal perfusion through chronic vasodilation
D. Inhibition of the sympathetic nervous system
Answer: A
Conceptual Explanation: While RAAS initially maintains blood pressure, chronic
activation causes persistent vasoconstriction (increased afterload) and promotes structural
changes in the heart (remodeling) that worsen failure.
3. A patient with Type 1 Diabetes Mellitus presents with Kussmaul respirations. What is the
primary purpose of this respiratory pattern?
A. To increase oxygen saturation for aerobic metabolism
B. To compensate for metabolic acidosis by blowing off CO2
C. To decrease the partial pressure of oxygen in the blood
D. To stimulate the release of bicarbonate from the kidneys
Answer: B
Conceptual Explanation: Kussmaul respirations are a form of hyperventilation used to
lower Paco2 to compensate for the metabolic acidosis found in DKA.
4. Which pathophysiological process occurs in the brain during the development of Multiple
Sclerosis?
A. Depletion of dopamine in the basal ganglia
B. Accumulation of beta-amyloid plaques
, C. T-cell mediated destruction of the myelin sheath
D. Inhibition of acetylcholinesterase at the synapse
Answer: C
Conceptual Explanation: MS is an autoimmune disorder where autoreactive T-cells cross
the blood-brain barrier and attack the myelin sheath of neurons in the central nervous
system.
5. The ‘Philadelphia Chromosome’ is a specific genetic abnormality associated with which
type of leukemia?
A. Chronic Myeloid Leukemia (CML)
B. Chronic Lymphocytic Leukemia (CLL)
C. Acute Myeloid Leukemia (AML)
D. Acute Lymphocytic Leukemia (ALL)
Answer: A
Conceptual Explanation: The Philadelphia chromosome (translocation between
chromosomes 9 and 22) creates the BCR-ABL fusion gene, which is the hallmark of CML.
6. In Acute Respiratory Distress Syndrome (ARDS), the formation of hyaline membranes
primarily leads to:
A. Increased lung compliance
B. Dilation of the terminal bronchioles
PATHOPHYSIOLOGY FINAL EXAM
QUESTIONS AND ANSWERS AND
EXPLANATIONS | LATEST - REGIS
1. Which physiological mechanism is primarily responsible for the development of edema in a
patient diagnosed with Nephrotic Syndrome?
A. Increased capillary hydrostatic pressure
B. Increased lymphatic obstruction
C. Decreased plasma oncotic pressure
D. Decreased capillary permeability
Answer: C
Conceptual Explanation: Nephrotic syndrome involves heavy proteinuria, which leads to
hypoalbuminemia. Reduced albumin decreases plasma oncotic pressure, allowing fluid to
leak into the interstitial space.
2. In the early stages of heart failure, the Heart activates the Renin-Angiotensin-Aldosterone
System (RAAS). What is the paradoxical long-term effect of this compensation?
A. Increased afterload and cardiac remodeling
B. Reduced cardiac workload due to sodium excretion
,C. Improved renal perfusion through chronic vasodilation
D. Inhibition of the sympathetic nervous system
Answer: A
Conceptual Explanation: While RAAS initially maintains blood pressure, chronic
activation causes persistent vasoconstriction (increased afterload) and promotes structural
changes in the heart (remodeling) that worsen failure.
3. A patient with Type 1 Diabetes Mellitus presents with Kussmaul respirations. What is the
primary purpose of this respiratory pattern?
A. To increase oxygen saturation for aerobic metabolism
B. To compensate for metabolic acidosis by blowing off CO2
C. To decrease the partial pressure of oxygen in the blood
D. To stimulate the release of bicarbonate from the kidneys
Answer: B
Conceptual Explanation: Kussmaul respirations are a form of hyperventilation used to
lower Paco2 to compensate for the metabolic acidosis found in DKA.
4. Which pathophysiological process occurs in the brain during the development of Multiple
Sclerosis?
A. Depletion of dopamine in the basal ganglia
B. Accumulation of beta-amyloid plaques
, C. T-cell mediated destruction of the myelin sheath
D. Inhibition of acetylcholinesterase at the synapse
Answer: C
Conceptual Explanation: MS is an autoimmune disorder where autoreactive T-cells cross
the blood-brain barrier and attack the myelin sheath of neurons in the central nervous
system.
5. The ‘Philadelphia Chromosome’ is a specific genetic abnormality associated with which
type of leukemia?
A. Chronic Myeloid Leukemia (CML)
B. Chronic Lymphocytic Leukemia (CLL)
C. Acute Myeloid Leukemia (AML)
D. Acute Lymphocytic Leukemia (ALL)
Answer: A
Conceptual Explanation: The Philadelphia chromosome (translocation between
chromosomes 9 and 22) creates the BCR-ABL fusion gene, which is the hallmark of CML.
6. In Acute Respiratory Distress Syndrome (ARDS), the formation of hyaline membranes
primarily leads to:
A. Increased lung compliance
B. Dilation of the terminal bronchioles
