Pathophysiology 9th Edition
Practice Questions & Answers |
Chapters 1–49 | Julia Rogers | ISBN
9780323874984| Latest Update
2026|2027
,
,Chapter 1 Cellular Biology
Q1. A patient presents with pathophysiologic changes related to cell organelles -
mitochondria ATP production. What is the underlying mechanism per McCance 9th?
A) Incorrect – reverses cause and effect for cell organelles - mitochondria ATP
production or confuses acute vs chronic
B) Correct mechanism for cell organelles - mitochondria ATP production – evidence-
based per McCance 9th, explains etiology, cellular/tissue changes, and systemic effects
C) Incorrect – unrelated system or outdated theory not supported by McCance 9th for
cell organelles - mitochondria ATP production
D) Incorrect – reverses cause and effect for cell organelles - mitochondria ATP
production or confuses acute vs chronic
Correct Answer: B) Correct mechanism for cell organelles - mitochondria ATP
production – evidence-based per McCance 9th, explains etiology, cellular/tissue
changes, and systemic effects
Rationale: For cell organelles - mitochondria ATP production, McCance 9th (ISBN
9780323789875) explains the biologic basis: primary insult → cellular injury/adaptation →
inflammatory/immune response → organ dysfunction. Correct option accurately describes
etiology (genetic, environmental, lifestyle), pathogenesis (e.g., ischemia, immune
hypersensitivity, hormonal feedback failure, oncogene activation), and clinical consequences.
Distractors are wrong because they either invert Starling forces, misinterpret ABGs, confuse
type I vs type IV hypersensitivity, or apply adult values to children. Understanding this
integration of structure-function across lifespan is key for exams 2026/2027.
Q2. Which lab/clinical finding is MOST consistent with sodium-potassium pump
maintaining membrane potential and its pathophysiology?
A) Incorrect – reverses cause and effect for sodium-potassium pump maintaining
membrane potential or confuses acute vs chronic
B) Incorrect – describes normal physiology without linking to pathophysiologic
alteration of sodium-potassium pump maintaining membrane potential
C) Correct mechanism for sodium-potassium pump maintaining membrane potential –
evidence-based per McCance 9th, explains etiology, cellular/tissue changes, and
systemic effects
D) Incorrect – reverses cause and effect for sodium-potassium pump maintaining
membrane potential or confuses acute vs chronic
Correct Answer: C) Correct mechanism for sodium-potassium pump maintaining
membrane potential – evidence-based per McCance 9th, explains etiology,
cellular/tissue changes, and systemic effects
Rationale: For sodium-potassium pump maintaining membrane potential, McCance 9th
(ISBN 9780323789875) explains the biologic basis: primary insult → cellular
, injury/adaptation → inflammatory/immune response → organ dysfunction. Correct option
accurately describes etiology (genetic, environmental, lifestyle), pathogenesis (e.g., ischemia,
immune hypersensitivity, hormonal feedback failure, oncogene activation), and clinical
consequences. Distractors are wrong because they either invert Starling forces, misinterpret
ABGs, confuse type I vs type IV hypersensitivity, or apply adult values to children.
Understanding this integration of structure-function across lifespan is key for exams
2026/2027.
Q3. A nurse analyzes a case involving apoptosis vs necrosis differences. Which
compensatory or maladaptive response would be expected?
A) Incorrect – reverses cause and effect for apoptosis vs necrosis differences or
confuses acute vs chronic
B) Incorrect – describes normal physiology without linking to pathophysiologic
alteration of apoptosis vs necrosis differences
C) Incorrect – unrelated system or outdated theory not supported by McCance 9th for
apoptosis vs necrosis differences
D) Correct mechanism for apoptosis vs necrosis differences – evidence-based per
McCance 9th, explains etiology, cellular/tissue changes, and systemic effects
Correct Answer: D) Correct mechanism for apoptosis vs necrosis differences –
evidence-based per McCance 9th, explains etiology, cellular/tissue changes, and
systemic effects
Rationale: For apoptosis vs necrosis differences, McCance 9th (ISBN 9780323789875)
explains the biologic basis: primary insult → cellular injury/adaptation →
inflammatory/immune response → organ dysfunction. Correct option accurately describes
etiology (genetic, environmental, lifestyle), pathogenesis (e.g., ischemia, immune
hypersensitivity, hormonal feedback failure, oncogene activation), and clinical consequences.
Distractors are wrong because they either invert Starling forces, misinterpret ABGs, confuse
type I vs type IV hypersensitivity, or apply adult values to children. Understanding this
integration of structure-function across lifespan is key for exams 2026/2027.
Q4. For cellular adaptation – atrophy/hypertrophy/hyperplasia/metaplasia, which
intervention addresses the primary biologic basis of disease in adults and children?
A) Correct mechanism for cellular adaptation –
atrophy/hypertrophy/hyperplasia/metaplasia – evidence-based per McCance 9th,
explains etiology, cellular/tissue changes, and systemic effects
B) Incorrect – describes normal physiology without linking to pathophysiologic
alteration of cellular adaptation – atrophy/hypertrophy/hyperplasia/metaplasia
C) Incorrect – unrelated system or outdated theory not supported by McCance 9th for
cellular adaptation – atrophy/hypertrophy/hyperplasia/metaplasia
D) Incorrect – reverses cause and effect for cellular adaptation –
atrophy/hypertrophy/hyperplasia/metaplasia or confuses acute vs chronic