NSG 3850 Exam 4 Pathophysiology Practice Test |
QUESTIONS AND VERIFIED ANSWERS WITH
RATIONALES JUST RELEASED.pdf
Overview
This NSG 3850 Exam 4 Pathophysiology practice set contains 150 original exam-style
questions designed to strengthen clinical reasoning, disease-process recognition, interpretation
of patient findings, and understanding of pathophysiologic mechanisms. Each question includes
four answer choices, the correct answer, and a concise rationale.
Coverage
Cardiovascular: Heart failure, myocardial infarction, hypertension, shock, arrhythmias,
valvular disorders, vascular disease, DVT
Respiratory: Asthma, COPD, pneumonia, pulmonary embolism, pneumothorax, ARDS,
pulmonary fibrosis, respiratory failure
Renal/Urinary: Acute kidney injury, chronic kidney disease, nephrotic/nephritic
syndromes, renal stones, diabetes insipidus, uremia
Endocrine: Diabetes mellitus, DKA, HHS, thyroid disorders, adrenal disorders,
hyperparathyroidism, electrolyte abnormalities
Gastrointestinal: GERD, peptic ulcers, pancreatitis, cirrhosis, cholecystitis, Crohn
disease, ulcerative colitis, bowel obstruction
Neurologic: Stroke, TIA, seizures, meningitis, multiple sclerosis, Parkinson disease,
increased intracranial pressure
Hematologic: Anemia, leukemia, thrombocytopenia, hemophilia, sickle cell disease, DIC
Immune/Inflammatory: Sepsis, anaphylaxis, autoimmune disorders, SLE, rheumatoid
arthritis, HIV-related immune dysfunction
Musculoskeletal: Osteoporosis, osteoarthritis, gout, herniated disks
Acid–Base & Fluids: Metabolic and respiratory acidosis/alkalosis, sodium, potassium,
calcium, fluid shifts
Clinical Reasoning: Disease mechanisms, manifestations, complications,
pathophysiologic relationships, prioritization, and recognition of serious deterioration
1.
,A patient with chronic left-sided heart failure develops worsening dyspnea, orthopnea, and
bilateral crackles. Which pathophysiologic mechanism best explains these findings?
A. Decreased systemic vascular resistance
B. Increased right ventricular preload
C. ✓ Increased pulmonary venous pressure causing pulmonary congestion
D. Reduced pulmonary capillary permeability
Rationale: Left ventricular dysfunction causes blood to back up into the pulmonary
circulation, increasing pulmonary venous and capillary pressure and promoting pulmonary
edema.
2.
A patient with an acute myocardial infarction develops hypotension, cool extremities, and
altered mental status. Which mechanism most directly explains these findings?
A. Increased cardiac output
B. ✓ Reduced myocardial contractility causing decreased cardiac output and tissue
hypoperfusion
C. Increased renal perfusion
D. Increased circulating blood volume
Rationale: Extensive myocardial injury can impair ventricular contractility, decreasing
cardiac output and producing cardiogenic shock with systemic hypoperfusion.
3.
A patient with long-standing hypertension develops left ventricular hypertrophy. Which
process primarily causes this structural change?
,A. Chronic volume depletion
B. Decreased ventricular workload
C. ✓ Increased afterload producing compensatory myocardial hypertrophy
D. Reduced sympathetic stimulation
Rationale: Chronic systemic hypertension increases ventricular afterload. The myocardium
adapts by increasing muscle mass to generate greater contractile force.
4.
A patient with atrial fibrillation is at increased risk for ischemic stroke primarily because of
which mechanism?
A. Increased cerebral oxygen production
B. ✓ Blood stasis in the atria promoting thrombus formation and embolization
C. Increased platelet destruction
D. Decreased systemic vascular resistance
Rationale: Ineffective atrial contraction causes blood stasis, particularly in the left atrial
appendage, increasing the risk of thrombus formation and systemic embolization.
5.
A patient with infective endocarditis develops a new heart murmur and fever. Which
pathophysiologic process is most likely occurring?
A. Coronary artery dilation
B. ✓ Infection and vegetative growth on a cardiac valve
C. Destruction of skeletal muscle
D. Increased pulmonary surfactant production
, Rationale: Infective endocarditis involves microbial infection of the endocardial surface,
commonly affecting valves and producing vegetations that can impair valve function.
6.
A patient with an acute asthma exacerbation develops wheezing and prolonged expiration.
Which mechanism is primarily responsible?
A. Permanent alveolar destruction
B. ✓ Bronchial smooth-muscle constriction, mucosal edema, and increased mucus
production
C. Reduced airway inflammation
D. Increased pulmonary vascular resistance alone
Rationale: Asthma involves reversible airway narrowing caused by bronchoconstriction,
airway inflammation, edema, and mucus hypersecretion.
7.
A patient with emphysema has progressive dyspnea and decreased breath sounds. Which
pathophysiologic change is most characteristic?
A. Increased alveolar surface area
B. ✓ Destruction of alveolar walls causing loss of elastic recoil and surface area
C. Increased airway cartilage strength
D. Increased pulmonary surfactant production
Rationale: Emphysema destroys alveolar septa and reduces elastic recoil, impairing
expiratory airflow and gas exchange.
QUESTIONS AND VERIFIED ANSWERS WITH
RATIONALES JUST RELEASED.pdf
Overview
This NSG 3850 Exam 4 Pathophysiology practice set contains 150 original exam-style
questions designed to strengthen clinical reasoning, disease-process recognition, interpretation
of patient findings, and understanding of pathophysiologic mechanisms. Each question includes
four answer choices, the correct answer, and a concise rationale.
Coverage
Cardiovascular: Heart failure, myocardial infarction, hypertension, shock, arrhythmias,
valvular disorders, vascular disease, DVT
Respiratory: Asthma, COPD, pneumonia, pulmonary embolism, pneumothorax, ARDS,
pulmonary fibrosis, respiratory failure
Renal/Urinary: Acute kidney injury, chronic kidney disease, nephrotic/nephritic
syndromes, renal stones, diabetes insipidus, uremia
Endocrine: Diabetes mellitus, DKA, HHS, thyroid disorders, adrenal disorders,
hyperparathyroidism, electrolyte abnormalities
Gastrointestinal: GERD, peptic ulcers, pancreatitis, cirrhosis, cholecystitis, Crohn
disease, ulcerative colitis, bowel obstruction
Neurologic: Stroke, TIA, seizures, meningitis, multiple sclerosis, Parkinson disease,
increased intracranial pressure
Hematologic: Anemia, leukemia, thrombocytopenia, hemophilia, sickle cell disease, DIC
Immune/Inflammatory: Sepsis, anaphylaxis, autoimmune disorders, SLE, rheumatoid
arthritis, HIV-related immune dysfunction
Musculoskeletal: Osteoporosis, osteoarthritis, gout, herniated disks
Acid–Base & Fluids: Metabolic and respiratory acidosis/alkalosis, sodium, potassium,
calcium, fluid shifts
Clinical Reasoning: Disease mechanisms, manifestations, complications,
pathophysiologic relationships, prioritization, and recognition of serious deterioration
1.
,A patient with chronic left-sided heart failure develops worsening dyspnea, orthopnea, and
bilateral crackles. Which pathophysiologic mechanism best explains these findings?
A. Decreased systemic vascular resistance
B. Increased right ventricular preload
C. ✓ Increased pulmonary venous pressure causing pulmonary congestion
D. Reduced pulmonary capillary permeability
Rationale: Left ventricular dysfunction causes blood to back up into the pulmonary
circulation, increasing pulmonary venous and capillary pressure and promoting pulmonary
edema.
2.
A patient with an acute myocardial infarction develops hypotension, cool extremities, and
altered mental status. Which mechanism most directly explains these findings?
A. Increased cardiac output
B. ✓ Reduced myocardial contractility causing decreased cardiac output and tissue
hypoperfusion
C. Increased renal perfusion
D. Increased circulating blood volume
Rationale: Extensive myocardial injury can impair ventricular contractility, decreasing
cardiac output and producing cardiogenic shock with systemic hypoperfusion.
3.
A patient with long-standing hypertension develops left ventricular hypertrophy. Which
process primarily causes this structural change?
,A. Chronic volume depletion
B. Decreased ventricular workload
C. ✓ Increased afterload producing compensatory myocardial hypertrophy
D. Reduced sympathetic stimulation
Rationale: Chronic systemic hypertension increases ventricular afterload. The myocardium
adapts by increasing muscle mass to generate greater contractile force.
4.
A patient with atrial fibrillation is at increased risk for ischemic stroke primarily because of
which mechanism?
A. Increased cerebral oxygen production
B. ✓ Blood stasis in the atria promoting thrombus formation and embolization
C. Increased platelet destruction
D. Decreased systemic vascular resistance
Rationale: Ineffective atrial contraction causes blood stasis, particularly in the left atrial
appendage, increasing the risk of thrombus formation and systemic embolization.
5.
A patient with infective endocarditis develops a new heart murmur and fever. Which
pathophysiologic process is most likely occurring?
A. Coronary artery dilation
B. ✓ Infection and vegetative growth on a cardiac valve
C. Destruction of skeletal muscle
D. Increased pulmonary surfactant production
, Rationale: Infective endocarditis involves microbial infection of the endocardial surface,
commonly affecting valves and producing vegetations that can impair valve function.
6.
A patient with an acute asthma exacerbation develops wheezing and prolonged expiration.
Which mechanism is primarily responsible?
A. Permanent alveolar destruction
B. ✓ Bronchial smooth-muscle constriction, mucosal edema, and increased mucus
production
C. Reduced airway inflammation
D. Increased pulmonary vascular resistance alone
Rationale: Asthma involves reversible airway narrowing caused by bronchoconstriction,
airway inflammation, edema, and mucus hypersecretion.
7.
A patient with emphysema has progressive dyspnea and decreased breath sounds. Which
pathophysiologic change is most characteristic?
A. Increased alveolar surface area
B. ✓ Destruction of alveolar walls causing loss of elastic recoil and surface area
C. Increased airway cartilage strength
D. Increased pulmonary surfactant production
Rationale: Emphysema destroys alveolar septa and reduces elastic recoil, impairing
expiratory airflow and gas exchange.
