NUR 6111 FINAL EXAM PREPARATION:
ADVANCED PATHOPHYSIOLOGY
QUESTIONS AND ANSWERS WITH
VERIFIED SOLUTIONS 2026/2027
UPDATE. JUST RELEASED
1. Which mechanism best explains the development of reperfusion injury after oxygen is
restored to ischemic tissues?
A. Immediate stabilization of the mitochondrial membrane potential.
B. Accumulation of lactic acid leading to metabolic alkalosis.
C. Rapid restoration of the sodium-potassium pump efficiency.
D. Excessive production of reactive oxygen species (ROS) and oxidative stress.
Answer: D
Conceptual Explanation: Reperfusion injury occurs when the restoration of oxygen leads
to the generation of highly reactive oxygen intermediates (free radicals) that cause further
membrane damage and calcium overload.
2. In the pathophysiology of Type II Diabetes Mellitus, what is the primary consequence of
chronic hyperinsulinemia on insulin receptors?
A. Up-regulation of receptors to increase sensitivity.
,B. Conversion of insulin receptors into glucagon receptors.
C. Increased affinity of receptors for circulating glucose.
D. Down-regulation of receptors leading to insulin resistance.
Answer: D
Conceptual Explanation: Chronic high levels of insulin lead to the down-regulation
(reduction in number) of insulin receptors, which is a hallmark of insulin resistance in
Type II Diabetes.
3. A patient is diagnosed with Sipple syndrome (MEN 2A). Which pathological process is most
likely associated with this genetic condition?
A. Hypersecretion of catecholamines from a pheochromocytoma.
B. Autoimmune destruction of the adrenal cortex.
C. Deficiency of Vitamin D leading to osteomalacia.
D. Inhibited secretion of parathyroid hormone.
Answer: A
Conceptual Explanation: Multiple Endocrine Neoplasia type 2A (MEN 2A) typically
includes medullary thyroid carcinoma, pheochromocytoma (secreting catecholamines),
and parathyroid hyperplasia.
4. Which of the following describes the role of the p53 gene in oncology?
A. It is a proto-oncogene that stimulates rapid cell division.
, B. It is a tumor suppressor gene that initiates DNA repair or apoptosis.
C. It codes for a protein that enhances angiogenesis in solid tumors.
D. It facilitates the epithelial-to-mesenchymal transition.
Answer: B
Conceptual Explanation: p53 is the ‘guardian of the genome,’ a tumor suppressor gene
that monitors DNA integrity and triggers repair or apoptosis if damage is irreparable.
5. What is the primary pathophysiological trigger for the release of Renin from the
juxtaglomerular apparatus?
A. Increased systemic blood pressure.
B. Decreased renal perfusion pressure or sympathetic stimulation.
C. High sodium concentration at the macula densa.
D. Parasympathetic activation of the vagus nerve.
Answer: B
Conceptual Explanation: Renin is released in response to decreased blood pressure in the
afferent arterioles, decreased sodium delivery to the macula densa, or sympathetic nervous
system activation.
6. During an acute asthma attack, what is the primary reason for the ‘air trapping’ observed
in the alveoli?
A. Loss of elastic recoil in the alveolar walls.
ADVANCED PATHOPHYSIOLOGY
QUESTIONS AND ANSWERS WITH
VERIFIED SOLUTIONS 2026/2027
UPDATE. JUST RELEASED
1. Which mechanism best explains the development of reperfusion injury after oxygen is
restored to ischemic tissues?
A. Immediate stabilization of the mitochondrial membrane potential.
B. Accumulation of lactic acid leading to metabolic alkalosis.
C. Rapid restoration of the sodium-potassium pump efficiency.
D. Excessive production of reactive oxygen species (ROS) and oxidative stress.
Answer: D
Conceptual Explanation: Reperfusion injury occurs when the restoration of oxygen leads
to the generation of highly reactive oxygen intermediates (free radicals) that cause further
membrane damage and calcium overload.
2. In the pathophysiology of Type II Diabetes Mellitus, what is the primary consequence of
chronic hyperinsulinemia on insulin receptors?
A. Up-regulation of receptors to increase sensitivity.
,B. Conversion of insulin receptors into glucagon receptors.
C. Increased affinity of receptors for circulating glucose.
D. Down-regulation of receptors leading to insulin resistance.
Answer: D
Conceptual Explanation: Chronic high levels of insulin lead to the down-regulation
(reduction in number) of insulin receptors, which is a hallmark of insulin resistance in
Type II Diabetes.
3. A patient is diagnosed with Sipple syndrome (MEN 2A). Which pathological process is most
likely associated with this genetic condition?
A. Hypersecretion of catecholamines from a pheochromocytoma.
B. Autoimmune destruction of the adrenal cortex.
C. Deficiency of Vitamin D leading to osteomalacia.
D. Inhibited secretion of parathyroid hormone.
Answer: A
Conceptual Explanation: Multiple Endocrine Neoplasia type 2A (MEN 2A) typically
includes medullary thyroid carcinoma, pheochromocytoma (secreting catecholamines),
and parathyroid hyperplasia.
4. Which of the following describes the role of the p53 gene in oncology?
A. It is a proto-oncogene that stimulates rapid cell division.
, B. It is a tumor suppressor gene that initiates DNA repair or apoptosis.
C. It codes for a protein that enhances angiogenesis in solid tumors.
D. It facilitates the epithelial-to-mesenchymal transition.
Answer: B
Conceptual Explanation: p53 is the ‘guardian of the genome,’ a tumor suppressor gene
that monitors DNA integrity and triggers repair or apoptosis if damage is irreparable.
5. What is the primary pathophysiological trigger for the release of Renin from the
juxtaglomerular apparatus?
A. Increased systemic blood pressure.
B. Decreased renal perfusion pressure or sympathetic stimulation.
C. High sodium concentration at the macula densa.
D. Parasympathetic activation of the vagus nerve.
Answer: B
Conceptual Explanation: Renin is released in response to decreased blood pressure in the
afferent arterioles, decreased sodium delivery to the macula densa, or sympathetic nervous
system activation.
6. During an acute asthma attack, what is the primary reason for the ‘air trapping’ observed
in the alveoli?
A. Loss of elastic recoil in the alveolar walls.
