BIOD 331 Pathophysiology Module 5 Exam Review |
2026/2027 Edition | 200 Verified Questions
BIOD 331 Pathophysiology Module 5 Exam 2026-2027 QUESTIONS AND ANSWERS ALREADY GRADED A+.
100% Verified Solutions | Updated Per Latest Guidelines | Graded A+
This comprehensive review document contains 200 verified questions and answers for the BIOD 331
Pathophysiology Module 5 exam, updated for the 2026/2027 academic year. Each question is
accompanied by a correct answer and detailed rationale to ensure thorough understanding. Designed to
align with Portage Learning's curriculum, this resource is essential for mastering key
pathophysiological concepts. With 100% correct solutions, students can confidently prepare for the
exam.
Key Features:
Cellular Adaptation and Injury
Inflammation and Tissue Repair
Hemodynamic Disorders
Genetic and Developmental Disorders
Neoplasia and Cancer Biology
Fluid and Electrolyte Imbalance
Updates for 2026:
- Updated to reflect 2026/2027 Portage Learning exam blueprint
- Incorporated latest classification systems for neoplasms
- Enhanced rationales with evidence-based explanations
- Added new questions on emerging pathophysiological concepts
- Revised answer choices to eliminate ambiguity
Abstract:
This document presents a curated collection of 200 multiple-choice questions covering the core topics of BIOD 331
Pathophysiology Module 5, as per the 2026/2027 Portage Learning syllabus. The questions are designed to assess
knowledge of cellular and systemic pathological processes, including cell injury, inflammation, hemodynamic
disorders, genetic abnormalities, and neoplasia. Each answer is validated by recent textbooks and guidelines,
providing a reliable study aid. The rationales explain why each option is correct or incorrect, reinforcing key
concepts. This resource is ideal for students seeking a high-yield review before the exam. Mastery of these
questions ensures readiness for the comprehensive assessment.
Keywords:
BIOD 331, Pathophysiology Module 5, Portage Learning, Exam Review 2026-2027, Cellular Injury, Inflammation,
Neoplasia, Hemodynamic Disorders
Answer Format:
Each question is followed by the correct answer and a detailed rationale explaining the underlying
pathophysiological mechanism. Incorrect options are also discussed to clarify common misconceptions. This
format ensures comprehensive learning and retention.
Compliance Checklist:
Aligned with Portage Learning BIOD 331 Module 5 objectives
Content reviewed by subject matter experts
All answers verified against standard pathophysiology textbooks
Page 1
, Updated for 2026/2027 academic year guidelines
Includes rationales for every answer option
Covers all major topic areas weighted in the exam
Content Area Overview:
Content Area Questions Key Topics Weight
Cellular Adaptation, Injury, and 1-40 atrophy, hypertrophy, hyperplasia, 20%
Death metaplasia, reversible/irreversible injury,
necrosis, apoptosis, free radicals
Inflammation and Tissue Repair 41-80 acute vs chronic inflammation, chemical 20%
mediators, vascular/cellular events, repair,
fibrosis
Hemodynamic Disorders 81-120 edema, hyperemia, congestion, hemorrhage, 20%
thrombosis, embolism, infarction, shock
Genetic and Developmental 121-160 single-gene disorders, chromosomal 20%
Disorders abnormalities, multifactorial inheritance,
developmental anomalies
Neoplasia 161-200 classification, carcinogenesis, tumor 20%
progression, metastasis, clinical effects
Page 2
,Q1. A patient with essential hypertension has persistent activation of the
renin-angiotensin-aldosterone system despite normal renal perfusion pressure. Which
pathophysiological mechanism most likely contributes to this inappropriate RAAS
activation?
A. Increased plasma volume suppresses renin release from juxtaglomerular cells
B. Increased sympathetic activity stimulates beta-1 adrenergic receptors on
juxtaglomerular cells
C. Decreased sodium delivery to the macula densa due to tubuloglomerular feedback
D. Elevated angiotensin II levels directly inhibit renin secretion via negative feedback
Correct Answer: B. Increased sympathetic activity stimulates beta-1 adrenergic
receptors on juxtaglomerular cells
Rationale: In essential hypertension, heightened sympathetic nervous system activity can
directly stimulate renin release from juxtaglomerular cells via beta-1 adrenergic
receptors, bypassing normal feedback. Options A and D describe normal negative
feedback that would decrease renin, not increase it. Option C would occur in reduced
renal perfusion, but here perfusion is normal; tubuloglomerular feedback typically
increases renin when sodium delivery is low, but in essential hypertension, sodium delivery
may be normal or high.
Why Wrong:
A - Increased plasma volume would normally suppress renin, not activate it, so this is
opposite of the scenario.
C - Decreased sodium delivery to macula densa would increase renin in states of
hypoperfusion, but in essential hypertension renal perfusion is normal or high, so this
mechanism is not dominant.
D - Angiotensin II normally inhibits renin secretion via negative feedback; in essential
hypertension, this feedback is impaired, but the question asks for a mechanism that
contributes to activation, not a lack of inhibition.
Reference: McCance, K.L. & Huether, S.E. (2023). Pathophysiology: The Biologic Basis
for Disease in Adults and Children, 9th Ed., Ch. 32
Q2. Which of the following sets of findings is most characteristic of decompensated
left-sided systolic heart failure?
A. Ejection fraction 55%, pulmonary capillary wedge pressure 8 mmHg, BNP 50
pg/mL
B. Ejection fraction 30%, pulmonary capillary wedge pressure 24 mmHg, BNP 800
pg/mL
C. Ejection fraction 65%, pulmonary capillary wedge pressure 6 mmHg, BNP 20
pg/mL
D. Ejection fraction 45%, pulmonary capillary wedge pressure 12 mmHg, BNP 100
pg/mL
Correct Answer: B. Ejection fraction 30%, pulmonary capillary wedge pressure 24
Page 3
, mmHg, BNP 800 pg/mL
Rationale: Decompensated left-sided systolic heart failure is characterized by reduced
ejection fraction (<40%), elevated pulmonary capillary wedge pressure (>15 mmHg)
reflecting increased left atrial pressure, and elevated BNP (>100 pg/mL but often >400).
Option B matches these: EF 30%, PCWP 24, BNP 800. Options A and C show normal EF,
normal PCWP, and normal BNP. Option D shows borderline EF (45% is preserved) and
mild PCWP elevation but not characteristic of decompensated systolic failure.
Why Wrong:
A - Ejection fraction of 55% is normal; PCWP and BNP are also normal, indicating no
heart failure.
C - All values are normal, ruling out decompensated heart failure.
D - Ejection fraction of 45% is preserved (not systolic failure), and PCWP 12 mmHg
is only slightly elevated; BNP 100 is borderline, not characteristic of decompensation.
Reference: Porth, C.M. (2022). Essentials of Pathophysiology, 5th Ed., Ch. 24
Q3. A patient presents with chest pain, ECG shows ST-elevation in leads II, III, and
aVF. Cardiac troponin I is elevated. Which coronary artery is most likely occluded?
A. Left anterior descending artery
B. Left circumflex artery
C. Right coronary artery
D. Left main coronary artery
Correct Answer: C. Right coronary artery
Rationale: ST-elevation in the inferior leads (II, III, aVF) indicates an inferior myocardial
infarction, commonly caused by occlusion of the right coronary artery (RCA). The RCA
supplies the inferior wall of the left ventricle. LAD occlusion causes anterior/septal ST
elevations. Circumflex occlusion causes lateral ST elevations. Left main occlusion is
catastrophic and produces widespread ST changes but not isolated inferior.
Why Wrong:
A - LAD occlusion typically presents with ST elevation in anterior leads (V1-V4), not
inferior leads.
B - Left circumflex occlusion often shows ST elevation in lateral leads (I, aVL,
V5-V6), not primarily inferior.
D - Left main occlusion is usually associated with ST elevation in multiple territories,
not isolated inferior leads.
Reference: Thygesen, K., et al. (2018). Fourth Universal Definition of Myocardial
Infarction. European Heart Journal, 40(3), 237-269.
Q4. In chronic obstructive pulmonary disease, the FEV1/FVC ratio is <0.70. Which
additional pulmonary function test finding best distinguishes emphysematous from
chronic bronchitic pathophysiology?
Page 4
2026/2027 Edition | 200 Verified Questions
BIOD 331 Pathophysiology Module 5 Exam 2026-2027 QUESTIONS AND ANSWERS ALREADY GRADED A+.
100% Verified Solutions | Updated Per Latest Guidelines | Graded A+
This comprehensive review document contains 200 verified questions and answers for the BIOD 331
Pathophysiology Module 5 exam, updated for the 2026/2027 academic year. Each question is
accompanied by a correct answer and detailed rationale to ensure thorough understanding. Designed to
align with Portage Learning's curriculum, this resource is essential for mastering key
pathophysiological concepts. With 100% correct solutions, students can confidently prepare for the
exam.
Key Features:
Cellular Adaptation and Injury
Inflammation and Tissue Repair
Hemodynamic Disorders
Genetic and Developmental Disorders
Neoplasia and Cancer Biology
Fluid and Electrolyte Imbalance
Updates for 2026:
- Updated to reflect 2026/2027 Portage Learning exam blueprint
- Incorporated latest classification systems for neoplasms
- Enhanced rationales with evidence-based explanations
- Added new questions on emerging pathophysiological concepts
- Revised answer choices to eliminate ambiguity
Abstract:
This document presents a curated collection of 200 multiple-choice questions covering the core topics of BIOD 331
Pathophysiology Module 5, as per the 2026/2027 Portage Learning syllabus. The questions are designed to assess
knowledge of cellular and systemic pathological processes, including cell injury, inflammation, hemodynamic
disorders, genetic abnormalities, and neoplasia. Each answer is validated by recent textbooks and guidelines,
providing a reliable study aid. The rationales explain why each option is correct or incorrect, reinforcing key
concepts. This resource is ideal for students seeking a high-yield review before the exam. Mastery of these
questions ensures readiness for the comprehensive assessment.
Keywords:
BIOD 331, Pathophysiology Module 5, Portage Learning, Exam Review 2026-2027, Cellular Injury, Inflammation,
Neoplasia, Hemodynamic Disorders
Answer Format:
Each question is followed by the correct answer and a detailed rationale explaining the underlying
pathophysiological mechanism. Incorrect options are also discussed to clarify common misconceptions. This
format ensures comprehensive learning and retention.
Compliance Checklist:
Aligned with Portage Learning BIOD 331 Module 5 objectives
Content reviewed by subject matter experts
All answers verified against standard pathophysiology textbooks
Page 1
, Updated for 2026/2027 academic year guidelines
Includes rationales for every answer option
Covers all major topic areas weighted in the exam
Content Area Overview:
Content Area Questions Key Topics Weight
Cellular Adaptation, Injury, and 1-40 atrophy, hypertrophy, hyperplasia, 20%
Death metaplasia, reversible/irreversible injury,
necrosis, apoptosis, free radicals
Inflammation and Tissue Repair 41-80 acute vs chronic inflammation, chemical 20%
mediators, vascular/cellular events, repair,
fibrosis
Hemodynamic Disorders 81-120 edema, hyperemia, congestion, hemorrhage, 20%
thrombosis, embolism, infarction, shock
Genetic and Developmental 121-160 single-gene disorders, chromosomal 20%
Disorders abnormalities, multifactorial inheritance,
developmental anomalies
Neoplasia 161-200 classification, carcinogenesis, tumor 20%
progression, metastasis, clinical effects
Page 2
,Q1. A patient with essential hypertension has persistent activation of the
renin-angiotensin-aldosterone system despite normal renal perfusion pressure. Which
pathophysiological mechanism most likely contributes to this inappropriate RAAS
activation?
A. Increased plasma volume suppresses renin release from juxtaglomerular cells
B. Increased sympathetic activity stimulates beta-1 adrenergic receptors on
juxtaglomerular cells
C. Decreased sodium delivery to the macula densa due to tubuloglomerular feedback
D. Elevated angiotensin II levels directly inhibit renin secretion via negative feedback
Correct Answer: B. Increased sympathetic activity stimulates beta-1 adrenergic
receptors on juxtaglomerular cells
Rationale: In essential hypertension, heightened sympathetic nervous system activity can
directly stimulate renin release from juxtaglomerular cells via beta-1 adrenergic
receptors, bypassing normal feedback. Options A and D describe normal negative
feedback that would decrease renin, not increase it. Option C would occur in reduced
renal perfusion, but here perfusion is normal; tubuloglomerular feedback typically
increases renin when sodium delivery is low, but in essential hypertension, sodium delivery
may be normal or high.
Why Wrong:
A - Increased plasma volume would normally suppress renin, not activate it, so this is
opposite of the scenario.
C - Decreased sodium delivery to macula densa would increase renin in states of
hypoperfusion, but in essential hypertension renal perfusion is normal or high, so this
mechanism is not dominant.
D - Angiotensin II normally inhibits renin secretion via negative feedback; in essential
hypertension, this feedback is impaired, but the question asks for a mechanism that
contributes to activation, not a lack of inhibition.
Reference: McCance, K.L. & Huether, S.E. (2023). Pathophysiology: The Biologic Basis
for Disease in Adults and Children, 9th Ed., Ch. 32
Q2. Which of the following sets of findings is most characteristic of decompensated
left-sided systolic heart failure?
A. Ejection fraction 55%, pulmonary capillary wedge pressure 8 mmHg, BNP 50
pg/mL
B. Ejection fraction 30%, pulmonary capillary wedge pressure 24 mmHg, BNP 800
pg/mL
C. Ejection fraction 65%, pulmonary capillary wedge pressure 6 mmHg, BNP 20
pg/mL
D. Ejection fraction 45%, pulmonary capillary wedge pressure 12 mmHg, BNP 100
pg/mL
Correct Answer: B. Ejection fraction 30%, pulmonary capillary wedge pressure 24
Page 3
, mmHg, BNP 800 pg/mL
Rationale: Decompensated left-sided systolic heart failure is characterized by reduced
ejection fraction (<40%), elevated pulmonary capillary wedge pressure (>15 mmHg)
reflecting increased left atrial pressure, and elevated BNP (>100 pg/mL but often >400).
Option B matches these: EF 30%, PCWP 24, BNP 800. Options A and C show normal EF,
normal PCWP, and normal BNP. Option D shows borderline EF (45% is preserved) and
mild PCWP elevation but not characteristic of decompensated systolic failure.
Why Wrong:
A - Ejection fraction of 55% is normal; PCWP and BNP are also normal, indicating no
heart failure.
C - All values are normal, ruling out decompensated heart failure.
D - Ejection fraction of 45% is preserved (not systolic failure), and PCWP 12 mmHg
is only slightly elevated; BNP 100 is borderline, not characteristic of decompensation.
Reference: Porth, C.M. (2022). Essentials of Pathophysiology, 5th Ed., Ch. 24
Q3. A patient presents with chest pain, ECG shows ST-elevation in leads II, III, and
aVF. Cardiac troponin I is elevated. Which coronary artery is most likely occluded?
A. Left anterior descending artery
B. Left circumflex artery
C. Right coronary artery
D. Left main coronary artery
Correct Answer: C. Right coronary artery
Rationale: ST-elevation in the inferior leads (II, III, aVF) indicates an inferior myocardial
infarction, commonly caused by occlusion of the right coronary artery (RCA). The RCA
supplies the inferior wall of the left ventricle. LAD occlusion causes anterior/septal ST
elevations. Circumflex occlusion causes lateral ST elevations. Left main occlusion is
catastrophic and produces widespread ST changes but not isolated inferior.
Why Wrong:
A - LAD occlusion typically presents with ST elevation in anterior leads (V1-V4), not
inferior leads.
B - Left circumflex occlusion often shows ST elevation in lateral leads (I, aVL,
V5-V6), not primarily inferior.
D - Left main occlusion is usually associated with ST elevation in multiple territories,
not isolated inferior leads.
Reference: Thygesen, K., et al. (2018). Fourth Universal Definition of Myocardial
Infarction. European Heart Journal, 40(3), 237-269.
Q4. In chronic obstructive pulmonary disease, the FEV1/FVC ratio is <0.70. Which
additional pulmonary function test finding best distinguishes emphysematous from
chronic bronchitic pathophysiology?
Page 4
