NUR 3125 Pathophysiology Final Exam
2025
Official Update
80 Unique Multiple-Choice Questions with Verified Answers and Detailed
Rationales
Instructions
This exam consists of 80 high-yield multiple-choice questions designed to assess your un-
derstanding of pathophysiology for nursing practice. Each question includes four answer
options, with the correct answer marked. Detailed rationales explain the correct answer
and why other options are incorrect. Read each question carefully and select the best
answer.
1
,Exam Questions
Question 1: What is the primary pathophysiological mechanism of type 1 diabetes mel-
litus?
a. Insulin resistance in peripheral tissues.
b. Autoimmune destruction of pancreatic beta cells. (Correct)
c. Excessive glucagon production.
d. Impaired glucose uptake in the liver.
Rationale: Type 1 diabetes mellitus results from autoimmune destruc-
tion of pancreatic beta cells, leading to absolute insulin deficiency. Insulin
resistance is characteristic of type 2 diabetes. Excessive glucagon pro-
duction and impaired glucose uptake are secondary effects, not primary
mechanisms. Ref: Web ID 0
Question 2: Which cellular adaptation is most likely in a patient with chronic hyper-
tension causing left ventricular hypertrophy?
a. Atrophy.
b. Hyperplasia.
c. Hypertrophy. (Correct)
d. Metaplasia.
Rationale: Hypertrophy is the increase in cell size due to increased work-
load, as seen in left ventricular hypertrophy from chronic hypertension.
Atrophy involves cell shrinkage, hyperplasia involves increased cell num-
ber, and metaplasia involves cell type change, none of which apply here.
Ref: Web ID 18
Question 3: A patient with pneumonia exhibits crackles on auscultation. What is the
underlying pathophysiology?
a. Alveolar collapse due to surfactant deficiency.
b. Exudative edema and purulent material in alveoli. (Correct)
c. Bronchial smooth muscle constriction.
d. Fibrotic changes in lung tissue.
Rationale: Crackles in pneumonia result from exudative edema and puru-
lent material in alveoli, causing alveoli to open against fluid resistance. Sur-
factant deficiency causes atelectasis, bronchial constriction causes wheez-
ing, and fibrosis is seen in chronic lung diseases, not acute pneumonia.
Ref: Web ID 20
Question 4: What is the primary cause of respiratory acidosis in a patient with chronic
obstructive pulmonary disease (COPD)?
a. Hypoventilation leading to CO2 retention. (Correct)
2
, b. Hyperventilation causing CO2 loss.
c. Renal bicarbonate retention.
d. Metabolic alkalosis compensation.
Rationale: COPD causes hypoventilation, leading to CO2 retention and
respiratory acidosis. Hyperventilation causes respiratory alkalosis. Re-
nal bicarbonate retention is a compensatory mechanism, not the cause.
Metabolic alkalosis is unrelated. Ref: Web ID 1
Question 5: In a patient with systemic lupus erythematosus (SLE), what is the primary
pathophysiological process?
a. Bacterial invasion of connective tissue.
b. Autoimmune attack on multiple tissues. (Correct)
c. Excessive histamine release.
d. Defective phagocytosis.
Rationale: SLE is an autoimmune disorder where autoantibodies attack
multiple tissues, causing inflammation. Bacterial invasion, histamine re-
lease, and defective phagocytosis are not primary mechanisms in SLE. Ref:
Web ID 18
Question 6: A patient with acute myocardial infarction experiences chest pain. What
is the primary cause of this pain?
a. Myocardial ischemia due to reduced blood flow. (Correct)
b. Pericardial inflammation.
c. Coronary artery vasospasm.
d. Left ventricular hypertrophy.
Rationale: Myocardial ischemia from reduced coronary blood flow causes
chest pain in acute myocardial infarction. Pericardial inflammation causes
pericarditis pain, vasospasm causes variant angina, and hypertrophy does
not directly cause acute pain. Ref: General Pathophysiology Knowl-
edge
Question 7: What is the hallmark pathophysiological feature of septic shock?
a. Vasodilation and increased vascular permeability. (Correct)
b. Vasoconstriction and decreased cardiac output.
c. Increased blood viscosity.
d. Primary adrenal insufficiency.
Rationale: Septic shock involves systemic vasodilation and increased vas-
cular permeability due to inflammatory mediators, leading to hypoten-
sion and tissue hypoperfusion. Vasoconstriction, increased viscosity, and
3
2025
Official Update
80 Unique Multiple-Choice Questions with Verified Answers and Detailed
Rationales
Instructions
This exam consists of 80 high-yield multiple-choice questions designed to assess your un-
derstanding of pathophysiology for nursing practice. Each question includes four answer
options, with the correct answer marked. Detailed rationales explain the correct answer
and why other options are incorrect. Read each question carefully and select the best
answer.
1
,Exam Questions
Question 1: What is the primary pathophysiological mechanism of type 1 diabetes mel-
litus?
a. Insulin resistance in peripheral tissues.
b. Autoimmune destruction of pancreatic beta cells. (Correct)
c. Excessive glucagon production.
d. Impaired glucose uptake in the liver.
Rationale: Type 1 diabetes mellitus results from autoimmune destruc-
tion of pancreatic beta cells, leading to absolute insulin deficiency. Insulin
resistance is characteristic of type 2 diabetes. Excessive glucagon pro-
duction and impaired glucose uptake are secondary effects, not primary
mechanisms. Ref: Web ID 0
Question 2: Which cellular adaptation is most likely in a patient with chronic hyper-
tension causing left ventricular hypertrophy?
a. Atrophy.
b. Hyperplasia.
c. Hypertrophy. (Correct)
d. Metaplasia.
Rationale: Hypertrophy is the increase in cell size due to increased work-
load, as seen in left ventricular hypertrophy from chronic hypertension.
Atrophy involves cell shrinkage, hyperplasia involves increased cell num-
ber, and metaplasia involves cell type change, none of which apply here.
Ref: Web ID 18
Question 3: A patient with pneumonia exhibits crackles on auscultation. What is the
underlying pathophysiology?
a. Alveolar collapse due to surfactant deficiency.
b. Exudative edema and purulent material in alveoli. (Correct)
c. Bronchial smooth muscle constriction.
d. Fibrotic changes in lung tissue.
Rationale: Crackles in pneumonia result from exudative edema and puru-
lent material in alveoli, causing alveoli to open against fluid resistance. Sur-
factant deficiency causes atelectasis, bronchial constriction causes wheez-
ing, and fibrosis is seen in chronic lung diseases, not acute pneumonia.
Ref: Web ID 20
Question 4: What is the primary cause of respiratory acidosis in a patient with chronic
obstructive pulmonary disease (COPD)?
a. Hypoventilation leading to CO2 retention. (Correct)
2
, b. Hyperventilation causing CO2 loss.
c. Renal bicarbonate retention.
d. Metabolic alkalosis compensation.
Rationale: COPD causes hypoventilation, leading to CO2 retention and
respiratory acidosis. Hyperventilation causes respiratory alkalosis. Re-
nal bicarbonate retention is a compensatory mechanism, not the cause.
Metabolic alkalosis is unrelated. Ref: Web ID 1
Question 5: In a patient with systemic lupus erythematosus (SLE), what is the primary
pathophysiological process?
a. Bacterial invasion of connective tissue.
b. Autoimmune attack on multiple tissues. (Correct)
c. Excessive histamine release.
d. Defective phagocytosis.
Rationale: SLE is an autoimmune disorder where autoantibodies attack
multiple tissues, causing inflammation. Bacterial invasion, histamine re-
lease, and defective phagocytosis are not primary mechanisms in SLE. Ref:
Web ID 18
Question 6: A patient with acute myocardial infarction experiences chest pain. What
is the primary cause of this pain?
a. Myocardial ischemia due to reduced blood flow. (Correct)
b. Pericardial inflammation.
c. Coronary artery vasospasm.
d. Left ventricular hypertrophy.
Rationale: Myocardial ischemia from reduced coronary blood flow causes
chest pain in acute myocardial infarction. Pericardial inflammation causes
pericarditis pain, vasospasm causes variant angina, and hypertrophy does
not directly cause acute pain. Ref: General Pathophysiology Knowl-
edge
Question 7: What is the hallmark pathophysiological feature of septic shock?
a. Vasodilation and increased vascular permeability. (Correct)
b. Vasoconstriction and decreased cardiac output.
c. Increased blood viscosity.
d. Primary adrenal insufficiency.
Rationale: Septic shock involves systemic vasodilation and increased vas-
cular permeability due to inflammatory mediators, leading to hypoten-
sion and tissue hypoperfusion. Vasoconstriction, increased viscosity, and
3
