NR283 – Pathophysiology | Chamberlain
University | Final Exam (Latest 2023/2024
Update) | Verified Questions & Answers |
100% Correct
This 60-question final exam assesses mastery of pathophysiology concepts, emphasizing
disease mechanisms, fluid/electrolyte/acid-base balance, and cellular processes. Questions
align with Chamberlain NR283 outcomes and 2025 updates from Robbins Basic Pathology (11th
ed.), Guyton & Hall Textbook of Medical Physiology (14th ed.), and 2025 American Physiological
Society guidelines. Distribution: 12 questions per topic. Each includes A-D options, correct
answer, and rationale with explanations for incorrect choices, pathophysiological mechanisms,
and clinical implications for nursing practice. Use for self-assessment; answers are verified for
accuracy.
Topic 1: Homeostasis and Inflammation (Questions 1-12)
Question 1: Homeostasis is maintained primarily through:
A. Positive feedback loops
B. Negative feedback loops
C. Feedforward mechanisms only
D. Static equilibrium
Correct Answer: B
Rationale: Negative feedback loops detect deviations from set points and initiate corrective
actions (e.g., insulin release for high glucose), restoring balance (Guyton, 2025, Ch. 1). A
amplifies changes (e.g., labor); C anticipates; D ignores dynamics. Implication: Disruptions lead
to instability (e.g., shock), requiring nurses to monitor vital signs and intervene promptly.
Question 2: Acute inflammation's vascular response involves:
A. Vasoconstriction and increased permeability
B. Vasodilation and increased vascular permeability
C. Decreased blood flow
D. Platelet aggregation only
Correct Answer: B
Rationale: Histamine and bradykinin cause vasodilation (redness, heat) and permeability
(edema) for leukocyte delivery (Robbins, 2025, Ch. 2). A is initial vasoconstriction; C/D partial.
Implication: Edema signals injury; nurses assess for compartment syndrome in trauma.
, Question 3: The role of selectins in inflammation is:
A. Diapedesis
B. Leukocyte rolling on endothelium
C. Chemotaxis
D. Opsonization
Correct Answer: B
Rationale: Selectins mediate initial weak adhesion for rolling (2025 Robbins). A is integrins; C
chemokines; D antibodies. Implication: Guides anti-adhesion therapy in atherosclerosis.
Question 4: Chronic inflammation is characterized by:
A. Neutrophil predominance
B. Mononuclear cell infiltration and tissue destruction
C. Rapid resolution
D. No tissue damage
Correct Answer: B
Rationale: Macrophages/T-lymphocytes drive fibrosis (Robbins, 2025). A acute; C/D opposite.
Implication: In RA, chronicity requires DMARDs; nurses monitor for joint deformity.
Question 5: The complement system's C3a and C5a function as:
A. Opsonins
B. Anaphylatoxins (mast cell degranulation)
C. Membrane attack complex
D. B**
Correct Answer: D
Rationale: C3a/C5a recruit eosinophils and histamine release (2025 Robbins). A C3b; C C5b-9.
Implication: Anaphylaxis in transfusions; epinephrine readiness.
Question 6: Homeostatic imbalance in hypovolemic shock triggers:
A. Decreased renin-angiotensin-aldosterone system (RAAS) activation
B. RAAS activation for vasoconstriction and Na+ retention
C. Increased atrial natriuretic peptide (ANP)
D. B**
Correct Answer: D
Rationale: Low volume stimulates baroreceptors, activating RAAS (Guyton, 2025). A opposite; C
ANP for hypervolemia. Implication: Fluid resuscitation key; monitor CVP.
Question 7: In inflammation, the role of bradykinin is to:
A. Inhibit pain
B. Cause pain and vasodilation
C. Promote diapedesis
D. B**
Correct Answer: D
University | Final Exam (Latest 2023/2024
Update) | Verified Questions & Answers |
100% Correct
This 60-question final exam assesses mastery of pathophysiology concepts, emphasizing
disease mechanisms, fluid/electrolyte/acid-base balance, and cellular processes. Questions
align with Chamberlain NR283 outcomes and 2025 updates from Robbins Basic Pathology (11th
ed.), Guyton & Hall Textbook of Medical Physiology (14th ed.), and 2025 American Physiological
Society guidelines. Distribution: 12 questions per topic. Each includes A-D options, correct
answer, and rationale with explanations for incorrect choices, pathophysiological mechanisms,
and clinical implications for nursing practice. Use for self-assessment; answers are verified for
accuracy.
Topic 1: Homeostasis and Inflammation (Questions 1-12)
Question 1: Homeostasis is maintained primarily through:
A. Positive feedback loops
B. Negative feedback loops
C. Feedforward mechanisms only
D. Static equilibrium
Correct Answer: B
Rationale: Negative feedback loops detect deviations from set points and initiate corrective
actions (e.g., insulin release for high glucose), restoring balance (Guyton, 2025, Ch. 1). A
amplifies changes (e.g., labor); C anticipates; D ignores dynamics. Implication: Disruptions lead
to instability (e.g., shock), requiring nurses to monitor vital signs and intervene promptly.
Question 2: Acute inflammation's vascular response involves:
A. Vasoconstriction and increased permeability
B. Vasodilation and increased vascular permeability
C. Decreased blood flow
D. Platelet aggregation only
Correct Answer: B
Rationale: Histamine and bradykinin cause vasodilation (redness, heat) and permeability
(edema) for leukocyte delivery (Robbins, 2025, Ch. 2). A is initial vasoconstriction; C/D partial.
Implication: Edema signals injury; nurses assess for compartment syndrome in trauma.
, Question 3: The role of selectins in inflammation is:
A. Diapedesis
B. Leukocyte rolling on endothelium
C. Chemotaxis
D. Opsonization
Correct Answer: B
Rationale: Selectins mediate initial weak adhesion for rolling (2025 Robbins). A is integrins; C
chemokines; D antibodies. Implication: Guides anti-adhesion therapy in atherosclerosis.
Question 4: Chronic inflammation is characterized by:
A. Neutrophil predominance
B. Mononuclear cell infiltration and tissue destruction
C. Rapid resolution
D. No tissue damage
Correct Answer: B
Rationale: Macrophages/T-lymphocytes drive fibrosis (Robbins, 2025). A acute; C/D opposite.
Implication: In RA, chronicity requires DMARDs; nurses monitor for joint deformity.
Question 5: The complement system's C3a and C5a function as:
A. Opsonins
B. Anaphylatoxins (mast cell degranulation)
C. Membrane attack complex
D. B**
Correct Answer: D
Rationale: C3a/C5a recruit eosinophils and histamine release (2025 Robbins). A C3b; C C5b-9.
Implication: Anaphylaxis in transfusions; epinephrine readiness.
Question 6: Homeostatic imbalance in hypovolemic shock triggers:
A. Decreased renin-angiotensin-aldosterone system (RAAS) activation
B. RAAS activation for vasoconstriction and Na+ retention
C. Increased atrial natriuretic peptide (ANP)
D. B**
Correct Answer: D
Rationale: Low volume stimulates baroreceptors, activating RAAS (Guyton, 2025). A opposite; C
ANP for hypervolemia. Implication: Fluid resuscitation key; monitor CVP.
Question 7: In inflammation, the role of bradykinin is to:
A. Inhibit pain
B. Cause pain and vasodilation
C. Promote diapedesis
D. B**
Correct Answer: D
