Chamberlain NR283 Pathophysiology Complete Exam
Bundle: Exams 1, 2, 3 & Final Exam Master Review
This comprehensive nursing resource delivers an exhaustive academic study bundle
tailored for Chamberlain University’s NR283 Pathophysiology curriculum, covering
Exam 1, Exam 2, Exam 3, and the Final Exam. The high-yield material provides an
organized breakdown of complex cellular mechanisms, fluid and electrolyte imbalances,
and multi-system disease manifestations across the human lifespan. Every section
features targeted practice questions with verified answers in bold and meticulous,
italicized rationales to build clinical reasoning and ensure top-tier exam scores.
Pathophysiology (NR283) Exam 1 Practice Questions (Cellular
Biology, Inflammation, & Fluid/Electrolytes)
Q1. A patient experiencing myocardial infarction suffers from tissue ischemia.
Which cellular change occurs first due to the lack of oxygen?
A. Rupture of lysosomal membranes
B. Influx of calcium into the cell
C. Decreased ATP production by mitochondria
D. Cellular swelling from sodium loss
Rationale: Ischemia cuts off oxygen to the mitochondria, halting oxidative
phosphorylation. This immediately drops adenosine triphosphate (ATP) production,
shutting down the sodium-potassium pump and causing cellular swelling.
Q2. A biopsy of the bronchial airway in a chronic smoker reveals a change from
ciliated columnar epithelium to stratified squamous epithelium. What is this
cellular adaptation called?
A. Hyperplasia
B. Metaplasia
C. Dysplasia
D. Anaplasia
Rationale: Metaplasia is the reversible replacement of one mature cell type by another
mature cell type, usually driven by chronic irritation like smoking. Dysplasia implies
disordered growth and is precancerous.
Q3. During an inflammatory response, which chemical mediator is primarily
responsible for increasing vascular permeability and causing immediate
vasodilation?
A. Leukotrienes
B. Histamine
,C. Prostaglandins
D. Interleukin-1
Rationale: Histamine is released rapidly by mast cells during acute inflammation. It
causes immediate vasodilation and endothelial cell contraction, increasing vascular
permeability.
Q4. A patient has a serum sodium level of 155 mEq/L. Which clinical
manifestation is most consistent with this lab finding?
A. Muscle cramps
B. Hyperactive bowel sounds
C. Dehydration and confusion
D. Bradycardia
Rationale: A sodium level above 145 mEq/L indicates hypernatremia. This causes water
to shift out of brain cells, leading to central nervous system dehydration, confusion,
lethargy, and thirst.
Q5. A client presents with a serum potassium level of 6.2 mEq/L. Which
diagnostic finding is a priority for the nurse to monitor?
A. Prolonged PR interval
B. Peaked T waves on an ECG
C. Prominent U waves
D. Metabolic alkalosis
Rationale: Hyperkalemia (potassium > 5.0 mEq/L) alters cardiac conduction. High
potassium levels cause narrow, peaked T waves, which can progress to ventricular
fibrillation if left untreated.
Q6. Which type of necrosis is most commonly seen in the brain following an
ischemic stroke?
A. Coagulative necrosis
B. Caseous necrosis
C. Fat necrosis
D. Liquefactive necrosis
D. Rationale: Liquefactive necrosis occurs in cells with high lipid and water content,
such as brain tissue. Cellular digestion by hydrolytic enzymes turns the tissue into a
soft, liquid mass.
Q7. A patient with end-stage renal disease presents with a serum calcium level of
7.2 mg/dL. Which sign would the nurse expect to elicit during assessment?
A. Positive Chvostek's sign
B. Hypoactive deep tendon reflexes
C. Constipation
D. Shortened QT interval
,Rationale: A calcium level below 8.5 mg/dL indicates hypocalcemia. This increases
neuromuscular excitability, leading to a positive Chvostek's sign (facial muscle twitching
when the facial nerve is tapped).
Q8. During the process of phagocytosis, which cells arrive first at the site of
injury within 6 to 12 hours?
A. Macrophages
B. Monocytes
C. Neutrophils
D. Lymphocytes
Rationale: Neutrophils are the primary white blood cells involved in acute inflammation.
They are highly mobile and are the first responders to arrive at an injured site.
Q9. A patient is diagnosed with an exudative pleural effusion containing a high
concentration of protein and white blood cells. This condition is caused by:*
A. Decreased capillary oncotic pressure
B. Increased capillary permeability
C. Increased hydrostatic pressure
D. Lymphatic obstruction
Rationale: Exudative fluids form when local inflammation increases capillary
permeability. This allows large plasma proteins and inflammatory cells to leak directly
out of the vasculature into surrounding tissues.
Q10. What is the primary function of the complement system during an
inflammatory response?
A. Decreased vascular permeability
B. Opsonization and bacterial lysis
C. Cellular mutation prevention
D. Synthesis of clotting factors
Rationale: The complement cascade enhances inflammation by coating pathogens
(opsonization), attracting phagocytes via chemotaxis, and forming membrane attack
complexes to lyse bacterial walls.
Q11. A patient with long-standing, untreated hypertension shows enlargement of
the left ventricle on an echocardiogram. This is an example of which cellular
adaptation?
A. Hypertrophy
B. Hyperplasia
, C. Atrophy
D. Metaplasia
Rationale: Hypertrophy is an increase in the size of individual cells, not their number.
The cardiac muscle cells grow larger to handle the increased workload caused by high
systemic pressure.
Q12. Which parameter confirms a patient has moved from an acute inflammatory
state to chronic inflammation?
A. Increased neutrophils
B. Presence of lymphocytes and macrophages
C. Immediate formation of a fibrin clot
D. Resolving localized erythema
Rationale: Chronic inflammation is characterized by a shift in cell types. Macrophages,
lymphocytes, and plasma cells replace neutrophils, and fibroblasts initiate scar tissue
formation.
Q13. An arterial blood gas (ABG) report shows: pH 7.31, PaCO2 52 mmHg, and
HCO3 24 mEq/L. How should the nurse interpret these findings?
A. Metabolic acidosis
B. Respiratory acidosis
C. Respiratory alkalosis
D. Metabolic alkalosis
Rationale: A pH below 7.35 indicates acidosis. Because the PaCO2 is elevated above
normal (35–45 mmHg) and the bicarbonate is normal, the primary cause is respiratory
retention of carbon dioxide.
Q14. What occurs when a cell undergoes apoptosis rather than necrosis?
A. Extensive inflammatory cascade activation
B. Cellular self-destruction without inflammation
C. Random enzymatic digestion of nearby structures
D. Cellular swelling and membrane rupture
Rationale: Apoptosis is programmed, orderly cell death. The cell shrinks and its
fragments are neatly phagocytized, preventing cellular contents from spilling and
triggering an inflammatory response.
Q15. A patient has a serum magnesium level of 1.1 mEq/L. Which medication or
lifestyle factor is a common cause of this imbalance?
A. Excessive intake of antacids
B. Chronic alcohol abuse
C. Renal failure
D. Hypoparathyroidism
Bundle: Exams 1, 2, 3 & Final Exam Master Review
This comprehensive nursing resource delivers an exhaustive academic study bundle
tailored for Chamberlain University’s NR283 Pathophysiology curriculum, covering
Exam 1, Exam 2, Exam 3, and the Final Exam. The high-yield material provides an
organized breakdown of complex cellular mechanisms, fluid and electrolyte imbalances,
and multi-system disease manifestations across the human lifespan. Every section
features targeted practice questions with verified answers in bold and meticulous,
italicized rationales to build clinical reasoning and ensure top-tier exam scores.
Pathophysiology (NR283) Exam 1 Practice Questions (Cellular
Biology, Inflammation, & Fluid/Electrolytes)
Q1. A patient experiencing myocardial infarction suffers from tissue ischemia.
Which cellular change occurs first due to the lack of oxygen?
A. Rupture of lysosomal membranes
B. Influx of calcium into the cell
C. Decreased ATP production by mitochondria
D. Cellular swelling from sodium loss
Rationale: Ischemia cuts off oxygen to the mitochondria, halting oxidative
phosphorylation. This immediately drops adenosine triphosphate (ATP) production,
shutting down the sodium-potassium pump and causing cellular swelling.
Q2. A biopsy of the bronchial airway in a chronic smoker reveals a change from
ciliated columnar epithelium to stratified squamous epithelium. What is this
cellular adaptation called?
A. Hyperplasia
B. Metaplasia
C. Dysplasia
D. Anaplasia
Rationale: Metaplasia is the reversible replacement of one mature cell type by another
mature cell type, usually driven by chronic irritation like smoking. Dysplasia implies
disordered growth and is precancerous.
Q3. During an inflammatory response, which chemical mediator is primarily
responsible for increasing vascular permeability and causing immediate
vasodilation?
A. Leukotrienes
B. Histamine
,C. Prostaglandins
D. Interleukin-1
Rationale: Histamine is released rapidly by mast cells during acute inflammation. It
causes immediate vasodilation and endothelial cell contraction, increasing vascular
permeability.
Q4. A patient has a serum sodium level of 155 mEq/L. Which clinical
manifestation is most consistent with this lab finding?
A. Muscle cramps
B. Hyperactive bowel sounds
C. Dehydration and confusion
D. Bradycardia
Rationale: A sodium level above 145 mEq/L indicates hypernatremia. This causes water
to shift out of brain cells, leading to central nervous system dehydration, confusion,
lethargy, and thirst.
Q5. A client presents with a serum potassium level of 6.2 mEq/L. Which
diagnostic finding is a priority for the nurse to monitor?
A. Prolonged PR interval
B. Peaked T waves on an ECG
C. Prominent U waves
D. Metabolic alkalosis
Rationale: Hyperkalemia (potassium > 5.0 mEq/L) alters cardiac conduction. High
potassium levels cause narrow, peaked T waves, which can progress to ventricular
fibrillation if left untreated.
Q6. Which type of necrosis is most commonly seen in the brain following an
ischemic stroke?
A. Coagulative necrosis
B. Caseous necrosis
C. Fat necrosis
D. Liquefactive necrosis
D. Rationale: Liquefactive necrosis occurs in cells with high lipid and water content,
such as brain tissue. Cellular digestion by hydrolytic enzymes turns the tissue into a
soft, liquid mass.
Q7. A patient with end-stage renal disease presents with a serum calcium level of
7.2 mg/dL. Which sign would the nurse expect to elicit during assessment?
A. Positive Chvostek's sign
B. Hypoactive deep tendon reflexes
C. Constipation
D. Shortened QT interval
,Rationale: A calcium level below 8.5 mg/dL indicates hypocalcemia. This increases
neuromuscular excitability, leading to a positive Chvostek's sign (facial muscle twitching
when the facial nerve is tapped).
Q8. During the process of phagocytosis, which cells arrive first at the site of
injury within 6 to 12 hours?
A. Macrophages
B. Monocytes
C. Neutrophils
D. Lymphocytes
Rationale: Neutrophils are the primary white blood cells involved in acute inflammation.
They are highly mobile and are the first responders to arrive at an injured site.
Q9. A patient is diagnosed with an exudative pleural effusion containing a high
concentration of protein and white blood cells. This condition is caused by:*
A. Decreased capillary oncotic pressure
B. Increased capillary permeability
C. Increased hydrostatic pressure
D. Lymphatic obstruction
Rationale: Exudative fluids form when local inflammation increases capillary
permeability. This allows large plasma proteins and inflammatory cells to leak directly
out of the vasculature into surrounding tissues.
Q10. What is the primary function of the complement system during an
inflammatory response?
A. Decreased vascular permeability
B. Opsonization and bacterial lysis
C. Cellular mutation prevention
D. Synthesis of clotting factors
Rationale: The complement cascade enhances inflammation by coating pathogens
(opsonization), attracting phagocytes via chemotaxis, and forming membrane attack
complexes to lyse bacterial walls.
Q11. A patient with long-standing, untreated hypertension shows enlargement of
the left ventricle on an echocardiogram. This is an example of which cellular
adaptation?
A. Hypertrophy
B. Hyperplasia
, C. Atrophy
D. Metaplasia
Rationale: Hypertrophy is an increase in the size of individual cells, not their number.
The cardiac muscle cells grow larger to handle the increased workload caused by high
systemic pressure.
Q12. Which parameter confirms a patient has moved from an acute inflammatory
state to chronic inflammation?
A. Increased neutrophils
B. Presence of lymphocytes and macrophages
C. Immediate formation of a fibrin clot
D. Resolving localized erythema
Rationale: Chronic inflammation is characterized by a shift in cell types. Macrophages,
lymphocytes, and plasma cells replace neutrophils, and fibroblasts initiate scar tissue
formation.
Q13. An arterial blood gas (ABG) report shows: pH 7.31, PaCO2 52 mmHg, and
HCO3 24 mEq/L. How should the nurse interpret these findings?
A. Metabolic acidosis
B. Respiratory acidosis
C. Respiratory alkalosis
D. Metabolic alkalosis
Rationale: A pH below 7.35 indicates acidosis. Because the PaCO2 is elevated above
normal (35–45 mmHg) and the bicarbonate is normal, the primary cause is respiratory
retention of carbon dioxide.
Q14. What occurs when a cell undergoes apoptosis rather than necrosis?
A. Extensive inflammatory cascade activation
B. Cellular self-destruction without inflammation
C. Random enzymatic digestion of nearby structures
D. Cellular swelling and membrane rupture
Rationale: Apoptosis is programmed, orderly cell death. The cell shrinks and its
fragments are neatly phagocytized, preventing cellular contents from spilling and
triggering an inflammatory response.
Q15. A patient has a serum magnesium level of 1.1 mEq/L. Which medication or
lifestyle factor is a common cause of this imbalance?
A. Excessive intake of antacids
B. Chronic alcohol abuse
C. Renal failure
D. Hypoparathyroidism
