NSG 120 NURSING
PATHOPHYSIOLOGY MIDTERM
EXAM ACTUAL 2026/2027 - 100%
LATEST MOCK PRACTICE SET
150 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
NSG 120 NURSING PATHOPHYSIOLOGY MIDTERM EXAM ACTUAL 2026/2027 - 100% VERIFIED | DETAILED
RATIONALES - PASS GUARANTEED - A+ GRADED. It contains 150 carefully selected questions that reflect the
most current exam content and testing strategies. Each question is accompanied by a correct answer and a
detailed rationale that explains the underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 150 Questions
Foundations - Application - NSG 120 Nursing Pathophysiology Actual 2026/2027 100 Detailed Rationales
PASS Guaranteed A Nursing Pathophysiology Undergraduate YEAR 3 / Graduate
All answers with rationales
,Table of Contents
Section A - Mechanism Section B - Chronic
Questions 1 to 38 Questions 39 to 76
Section C - Develops Section D - Disease
Questions 77 to 114 Questions 115 to 150
,Section A - Mechanism
Q1.
A patient with chronic hypoxemia due to COPD exhibits increased erythropoietin
secretion. Which cellular adaptation best explains the erythroid hyperplasia in the bone
marrow?
A. Metaplasia B. Dysplasia
C. Compensatory hyperplasia D. Physiologic hyperplasia
Correct: C - Compensatory hyperplasia
Rationale:Compensatory hyperplasia is an adaptive increase in cell number in response to
increased demand or hormonal stimulation, as seen with erythropoietin-driven erythroid
expansion. Metaplasia is a reversible change in cell type, dysplasia is disordered growth, and
physiologic hyperplasia is normal hormone-induced proliferation (e.g., uterine lining).
Q2.
An ischemic neuron undergoes ATP depletion. Which sequence of events most directly
leads to cell death by necrosis?
A. Mitochondrial permeability transition -> B. Na+/K+-ATPase failure -> cellular
cytochrome c release -> caspase activation swelling -> membrane rupture ->
-> apoptosis inflammation
C. ER stress -> unfolded protein response D. Lysosomal permeabilization -> release of
-> autophagy -> cell survival hydrolases -> DNA fragmentation ->
apoptotic bodies
Correct: B - Na+/K+-ATPase failure -> cellular swelling -> membrane rupture ->
inflammation
Rationale:Ischemic ATP depletion impairs the Na+/K+-ATPase, causing sodium and water
influx, cellular swelling, and eventual membrane rupture-hallmarks of necrosis that trigger
inflammation. Apoptosis (A, D) is energy-requiring and typically non-inflammatory; autophagy
(C) is a survival mechanism.
Q3.
A patient presents with hyponatremia (Na+ 118 mEq/L), muscle cramps, and confusion.
Which pathophysiological mechanism is most likely if the urine osmolality is 600
mOsm/kg and urine sodium is 40 mEq/L?
A. Psychogenic polydipsia B. Syndrome of inappropriate antidiuretic
hormone secretion (SIADH)
Page 3
, Section A - Mechanism
C. Cerebral salt wasting D. Diuretic overuse
Correct: B - Syndrome of inappropriate antidiuretic hormone secretion (SIADH)
Rationale:SIADH is characterized by hypotonic hyponatremia with inappropriately
concentrated urine (high osmolality) and elevated urine sodium due to suppressed
aldosterone and volume expansion. Psychogenic polydipsia would produce dilute urine (low
osmolality). Cerebral salt wasting and diuretic overuse cause volume depletion and low urine
sodium (<20 mEq/L).
Q4.
Which acid-base disturbance is most consistent with an arterial blood gas showing pH
7.48, PaCO2 28 mmHg, HCO3 22 mEq/L, and a negative anion gap?
A. Metabolic alkalosis with respiratory B. Respiratory alkalosis with renal
compensation compensation
C. Mixed respiratory alkalosis and metabolic D. Chronic respiratory acidosis with
acidosis metabolic compensation
Correct: B - Respiratory alkalosis with renal compensation
Rationale:The pH is elevated (alkalemia), PaCO2 is low (respiratory alkalosis), and HCO3" is
slightly low-consistent with renal compensation (excretion of bicarbonate) in chronic
respiratory alkalosis. Metabolic alkalosis would show elevated HCO3. Mixed
alkalosis/acidosis would have a more complex pattern; respiratory acidosis would have high
PaCO2.
Q5.
A patient with an autoimmune disease develops antibodies against self-antigens. Which
mechanism is the primary failure in central tolerance that could lead to this?
A. Clonal deletion of autoreactive T cells in B. Clonal anergy of self-reactive B cells in
the thymus the periphery
C. Inadequate regulatory T cell function in D. Failure of receptor editing in the bone
the thymus marrow
Correct: A - Clonal deletion of autoreactive T cells in the thymus
Rationale:Central tolerance in the thymus involves negative selection—clonal deletion of T
cells with high affinity for self-peptide-MHC complexes. Failure here allows autoreactive T
cells to escape to the periphery, which can drive autoantibody production. Anergy, Treg
dysfunction, and receptor editing failures are secondary or peripheral mechanisms.
Page 4
PATHOPHYSIOLOGY MIDTERM
EXAM ACTUAL 2026/2027 - 100%
LATEST MOCK PRACTICE SET
150 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
NSG 120 NURSING PATHOPHYSIOLOGY MIDTERM EXAM ACTUAL 2026/2027 - 100% VERIFIED | DETAILED
RATIONALES - PASS GUARANTEED - A+ GRADED. It contains 150 carefully selected questions that reflect the
most current exam content and testing strategies. Each question is accompanied by a correct answer and a
detailed rationale that explains the underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 150 Questions
Foundations - Application - NSG 120 Nursing Pathophysiology Actual 2026/2027 100 Detailed Rationales
PASS Guaranteed A Nursing Pathophysiology Undergraduate YEAR 3 / Graduate
All answers with rationales
,Table of Contents
Section A - Mechanism Section B - Chronic
Questions 1 to 38 Questions 39 to 76
Section C - Develops Section D - Disease
Questions 77 to 114 Questions 115 to 150
,Section A - Mechanism
Q1.
A patient with chronic hypoxemia due to COPD exhibits increased erythropoietin
secretion. Which cellular adaptation best explains the erythroid hyperplasia in the bone
marrow?
A. Metaplasia B. Dysplasia
C. Compensatory hyperplasia D. Physiologic hyperplasia
Correct: C - Compensatory hyperplasia
Rationale:Compensatory hyperplasia is an adaptive increase in cell number in response to
increased demand or hormonal stimulation, as seen with erythropoietin-driven erythroid
expansion. Metaplasia is a reversible change in cell type, dysplasia is disordered growth, and
physiologic hyperplasia is normal hormone-induced proliferation (e.g., uterine lining).
Q2.
An ischemic neuron undergoes ATP depletion. Which sequence of events most directly
leads to cell death by necrosis?
A. Mitochondrial permeability transition -> B. Na+/K+-ATPase failure -> cellular
cytochrome c release -> caspase activation swelling -> membrane rupture ->
-> apoptosis inflammation
C. ER stress -> unfolded protein response D. Lysosomal permeabilization -> release of
-> autophagy -> cell survival hydrolases -> DNA fragmentation ->
apoptotic bodies
Correct: B - Na+/K+-ATPase failure -> cellular swelling -> membrane rupture ->
inflammation
Rationale:Ischemic ATP depletion impairs the Na+/K+-ATPase, causing sodium and water
influx, cellular swelling, and eventual membrane rupture-hallmarks of necrosis that trigger
inflammation. Apoptosis (A, D) is energy-requiring and typically non-inflammatory; autophagy
(C) is a survival mechanism.
Q3.
A patient presents with hyponatremia (Na+ 118 mEq/L), muscle cramps, and confusion.
Which pathophysiological mechanism is most likely if the urine osmolality is 600
mOsm/kg and urine sodium is 40 mEq/L?
A. Psychogenic polydipsia B. Syndrome of inappropriate antidiuretic
hormone secretion (SIADH)
Page 3
, Section A - Mechanism
C. Cerebral salt wasting D. Diuretic overuse
Correct: B - Syndrome of inappropriate antidiuretic hormone secretion (SIADH)
Rationale:SIADH is characterized by hypotonic hyponatremia with inappropriately
concentrated urine (high osmolality) and elevated urine sodium due to suppressed
aldosterone and volume expansion. Psychogenic polydipsia would produce dilute urine (low
osmolality). Cerebral salt wasting and diuretic overuse cause volume depletion and low urine
sodium (<20 mEq/L).
Q4.
Which acid-base disturbance is most consistent with an arterial blood gas showing pH
7.48, PaCO2 28 mmHg, HCO3 22 mEq/L, and a negative anion gap?
A. Metabolic alkalosis with respiratory B. Respiratory alkalosis with renal
compensation compensation
C. Mixed respiratory alkalosis and metabolic D. Chronic respiratory acidosis with
acidosis metabolic compensation
Correct: B - Respiratory alkalosis with renal compensation
Rationale:The pH is elevated (alkalemia), PaCO2 is low (respiratory alkalosis), and HCO3" is
slightly low-consistent with renal compensation (excretion of bicarbonate) in chronic
respiratory alkalosis. Metabolic alkalosis would show elevated HCO3. Mixed
alkalosis/acidosis would have a more complex pattern; respiratory acidosis would have high
PaCO2.
Q5.
A patient with an autoimmune disease develops antibodies against self-antigens. Which
mechanism is the primary failure in central tolerance that could lead to this?
A. Clonal deletion of autoreactive T cells in B. Clonal anergy of self-reactive B cells in
the thymus the periphery
C. Inadequate regulatory T cell function in D. Failure of receptor editing in the bone
the thymus marrow
Correct: A - Clonal deletion of autoreactive T cells in the thymus
Rationale:Central tolerance in the thymus involves negative selection—clonal deletion of T
cells with high affinity for self-peptide-MHC complexes. Failure here allows autoreactive T
cells to escape to the periphery, which can drive autoantibody production. Anergy, Treg
dysfunction, and receptor editing failures are secondary or peripheral mechanisms.
Page 4
