NURS 5315 Pulmonary Practice Test | 2026/2027 Edition | 250
Verified Questions
NURS 5315 Advanced Pathophysiology Respiratory Questions Review Latest. 250 Questions and
Correct Answers Already Graded A+. 100% Verified Solutions | Updated Per Latest Guidelines |
Graded A+
This comprehensive practice test for NURS 5315 Advanced Pathophysiology focuses on the
pulmonary system, featuring 250 recent exam questions with verified correct answers. Designed to
reinforce key concepts in respiratory pathophysiology, this resource covers disorders of ventilation, gas
exchange, and pulmonary circulation. Each question includes detailed rationales to support deep
understanding and clinical application. Ideal for exam preparation, this document reflects the latest
2026/2027 academic guidelines.
Key Features:
250 verified exam questions with correct answers
Detailed rationales for each answer
Coverage of obstructive and restrictive lung diseases
Focus on pulmonary vascular disorders and gas exchange
Includes pediatric and adult respiratory pathophysiology
Updated to reflect 2026/2027 curriculum standards
Updates for 2026:
- Incorporated recent research on COVID-19 pulmonary sequelae
- Updated diagnostic criteria for ARDS per Berlin definition
- Revised asthma management guidelines per GINA 2026
- Added new questions on pulmonary hypertension classification
- Enhanced rationales with evidence-based references
Abstract:
This document serves as a rigorous practice test for NURS 5315 Advanced Pathophysiology, specifically targeting
pulmonary system disorders. The 250 questions are drawn from recent examinations and are accompanied by
correct answers and detailed rationales. Content spans from basic pulmonary anatomy and physiology to complex
pathophysiological states such as chronic obstructive pulmonary disease, asthma, pneumonia, pulmonary
embolism, and acute respiratory distress syndrome. Emphasis is placed on understanding the mechanisms of
disease, clinical manifestations, and diagnostic approaches. The material is aligned with the 2026/2027 academic
year and incorporates the latest evidence-based guidelines. This resource is intended to facilitate mastery of
respiratory pathophysiology and to prepare students for high-stakes assessments. Each question is designed to test
critical thinking and application of knowledge to clinical scenarios. The answer format includes explanations of
why each option is correct or incorrect, promoting deeper learning. This practice test is an essential tool for
nursing and healthcare students seeking to excel in advanced pathophysiology courses.
Keywords:
NURS 5315, pulmonary pathophysiology, respiratory exam questions, advanced pathophysiology, COPD, asthma,
ARDS, gas exchange
Answer Format:
Each question is followed by the correct answer and a detailed rationale explaining the underlying pathophysiology
and clinical reasoning. Incorrect answer choices are also discussed to clarify common misconceptions. Rationales
are referenced to current evidence-based guidelines and standard textbooks.
Page 1
,Compliance Checklist:
All questions align with NURS 5315 course objectives
Answers verified by subject matter experts
Rationales cite reputable sources (e.g., Harrison's, UpToDate)
Content reflects 2026/2027 academic year updates
Questions cover all major pulmonary disorders
Format suitable for self-assessment and exam review
Content Area Overview:
Content Area Questions Key Topics Weight
Pulmonary Anatomy and 1-30 Lung volumes, ventilation-perfusion 12%
Physiology matching, gas exchange mechanics
Obstructive Lung Diseases 31-80 COPD, asthma, bronchiectasis, cystic 20%
fibrosis
Restrictive Lung Diseases 81-120 Interstitial lung disease, pulmonary fibrosis, 16%
sarcoidosis
Pulmonary Vascular Disorders 121-160 Pulmonary embolism, pulmonary 16%
hypertension, cor pulmonale
Infectious and Inflammatory 161-200 Pneumonia, tuberculosis, fungal infections, 16%
Conditions ARDS
Pediatric and Neonatal 201-230 Respiratory distress syndrome, 12%
Pulmonary Pathophysiology bronchopulmonary dysplasia, congenital
anomalies
Miscellaneous and Integrated 231-250 Sleep apnea, lung cancer, pleural effusion, 8%
Topics acid-base disorders
Page 2
,Q1. A patient with chronic obstructive pulmonary disease (COPD) presents with increasing dyspnea and a
PaCO2 of 55 mm Hg on room air. Which of the following best describes the primary mechanism contributing
to this patient's hypercapnia?
A. Decreased alveolar ventilation relative to CO2 production
B. Increased dead space ventilation due to pulmonary vasoconstriction
C. Right-to-left intrapulmonary shunting through atelectatic areas
D. Diffusion impairment across thickened alveolar-capillary membranes
Correct Answer: A. Decreased alveolar ventilation relative to CO2 production
Rationale: Hypercapnia in COPD results from alveolar hypoventilation, where the rate of CO2 production exceeds
the rate of alveolar ventilation. While increased dead space and shunting can worsen gas exchange, the direct
cause of elevated PaCO2 is inadequate alveolar ventilation. Diffusion impairment primarily affects O2 uptake, not
CO2 elimination, as CO2 diffuses much more readily.
Why Wrong:
B - Increased dead space ventilation can contribute to wasted ventilation but does not directly cause
hypercapnia unless alveolar ventilation is reduced; hypercapnia is primarily due to insufficient alveolar
ventilation.
C - Right-to-left shunt causes hypoxemia that is refractory to supplemental oxygen, but it does not typically
elevate PaCO2 unless there is concomitant hypoventilation.
D - Diffusion impairment is a major cause of hypoxemia in interstitial lung disease but not in COPD, and
CO2 diffusion is so efficient that it is rarely impaired enough to cause hypercapnia.
Reference: West, J.B. (2020). Pulmonary Pathophysiology: The Essentials, 9th Ed., Ch. 5; Global Initiative for
Chronic Obstructive Lung Disease (GOLD) 2025 Report.
Q2. Which of the following pathophysiological changes is most directly responsible for the increased work of
breathing in a patient with idiopathic pulmonary fibrosis?
A. Decreased lung compliance due to parenchymal scarring
B. Increased airway resistance from bronchiolar inflammation
C. Dynamic hyperinflation from air trapping
D. Respiratory muscle weakness from chronic hypoxia
Correct Answer: A. Decreased lung compliance due to parenchymal scarring
Rationale: Idiopathic pulmonary fibrosis is a restrictive lung disease characterized by progressive fibrosis of the
lung parenchyma, which reduces lung compliance. This means greater transpulmonary pressure is needed to
achieve a given volume change, directly increasing the work of breathing. Airway resistance (B) is typically normal
in restrictive diseases, and dynamic hyperinflation (C) is a feature of obstructive diseases like COPD. Respiratory
muscle weakness (D) can occur but is not the primary mechanism.
Why Wrong:
B - Airway resistance is primarily increased in obstructive lung diseases such as asthma or COPD; in IPF, the
small airways are often normal or only minimally affected.
C - Dynamic hyperinflation is characteristic of obstructive diseases due to expiratory flow limitation;
restrictive diseases have reduced lung volumes without air trapping.
D - Respiratory muscle weakness may develop in advanced disease but is a secondary consequence, not the
direct cause of increased work of breathing in early to moderate IPF.
Reference: Raghu, G., et al. (2022). Idiopathic Pulmonary Fibrosis: An Official ATS/ERS/JRS/ALAT Clinical
Practice Guideline. Am J Respir Crit Care Med, 205(9):e18-e47.
Q3. A patient with acute respiratory distress syndrome (ARDS) is on mechanical ventilation with a FiO2 of
0.6 and positive end-expiratory pressure (PEEP) of 10 cm H2O. Arterial blood gas shows PaO2 55 mm Hg,
PaCO2 35 mm Hg, pH 7.42. Which of the following best explains the persistent hypoxemia?
A. Intrapulmonary shunt due to alveolar filling and collapse
Page 3
, B. Hypoventilation with compensatory respiratory alkalosis
C. Diffusion impairment from thickened alveolar membranes
D. Ventilation-perfusion mismatch with low V/Q units
Correct Answer: A. Intrapulmonary shunt due to alveolar filling and collapse
Rationale: In ARDS, hypoxemia is primarily due to intrapulmonary shunting caused by alveolar filling (edema, inflammation)
and collapse, leading to blood perfusing non-ventilated alveoli. This shunt is refractory to oxygen therapy because the blood
bypasses ventilated alveoli entirely. While V/Q mismatch also occurs, shunt is the dominant mechanism in severe ARDS. The
PaCO2 is normal, ruling out hypoventilation. Diffusion impairment is not the primary issue in the acute phase.
Why Wrong:
B - Hypoventilation would cause hypercapnia, not a normal PaCO2; also, the pH is normal, not alkalotic.
C - Diffusion impairment is more characteristic of interstitial lung diseases and is not the primary cause of hypoxemia in
early ARDS; it can contribute later if fibrosis develops.
D - V/Q mismatch does contribute but is not the predominant mechanism in severe ARDS; shunt is the main cause and is
suggested by the poor response to increased FiO2.
Reference: Matthay, M.A., et al. (2019). Acute Respiratory Distress Syndrome. Nat Rev Dis Primers, 5(1):18.
Q4. A patient with a history of recurrent pulmonary emboli develops progressive dyspnea and signs of right
heart failure. Echocardiography reveals right ventricular hypertrophy and estimated pulmonary artery
systolic pressure of 75 mm Hg. Which of the following cellular changes in the pulmonary vasculature is most
likely contributing to the elevated pressures?
A. Endothelial cell apoptosis leading to capillary rarefaction
B. Smooth muscle cell hypertrophy and hyperplasia in small pulmonary arteries
C. Alveolar epithelial type II cell hyperplasia
D. Neutrophil infiltration and release of elastase
Correct Answer: B. Smooth muscle cell hypertrophy and hyperplasia in small pulmonary arteries
Rationale: Chronic thromboembolic pulmonary hypertension (CTEPH) leads to remodeling of the pulmonary
vasculature, including smooth muscle cell hypertrophy and hyperplasia in the media of small pulmonary arteries,
which increases pulmonary vascular resistance. Endothelial apoptosis (A) is more associated with emphysema.
Alveolar epithelial changes (C) are seen in interstitial lung diseases. Neutrophil elastase (D) is involved in COPD
and alpha-1 antitrypsin deficiency.
Why Wrong:
A - Endothelial cell apoptosis with capillary loss is a feature of emphysema, not pulmonary hypertension
from chronic emboli.
C - Type II cell hyperplasia occurs in response to alveolar injury, as in ARDS or pulmonary fibrosis, not
primarily in pulmonary vascular remodeling.
D - Neutrophil elastase contributes to parenchymal destruction in COPD and alpha-1 antitrypsin deficiency,
not to the vascular remodeling of CTEPH.
Reference: Lang, I.M., et al. (2023). Chronic Thromboembolic Pulmonary Hypertension: JACC State-of-the-Art
Review. J Am Coll Cardiol, 81(12):1151-1169.
Q5. A patient with a suspected pulmonary embolism has a negative CT pulmonary angiogram but a high
clinical suspicion. Which of the following pathophysiological mechanisms could explain a false-negative CT
in a patient with acute PE?
A. Embolus located in a segmental artery that is not well opacified due to timing
B. Complete lysis of the embolus before imaging
C. Presence of a patent foramen ovale with paradoxical embolism
D. Embolus composed primarily of tumor cells rather than thrombus
Correct Answer: A. Embolus located in a segmental artery that is not well opacified due to timing
Rationale: CT pulmonary angiography can miss small emboli, particularly in segmental or subsegmental arteries,
Page 4
Verified Questions
NURS 5315 Advanced Pathophysiology Respiratory Questions Review Latest. 250 Questions and
Correct Answers Already Graded A+. 100% Verified Solutions | Updated Per Latest Guidelines |
Graded A+
This comprehensive practice test for NURS 5315 Advanced Pathophysiology focuses on the
pulmonary system, featuring 250 recent exam questions with verified correct answers. Designed to
reinforce key concepts in respiratory pathophysiology, this resource covers disorders of ventilation, gas
exchange, and pulmonary circulation. Each question includes detailed rationales to support deep
understanding and clinical application. Ideal for exam preparation, this document reflects the latest
2026/2027 academic guidelines.
Key Features:
250 verified exam questions with correct answers
Detailed rationales for each answer
Coverage of obstructive and restrictive lung diseases
Focus on pulmonary vascular disorders and gas exchange
Includes pediatric and adult respiratory pathophysiology
Updated to reflect 2026/2027 curriculum standards
Updates for 2026:
- Incorporated recent research on COVID-19 pulmonary sequelae
- Updated diagnostic criteria for ARDS per Berlin definition
- Revised asthma management guidelines per GINA 2026
- Added new questions on pulmonary hypertension classification
- Enhanced rationales with evidence-based references
Abstract:
This document serves as a rigorous practice test for NURS 5315 Advanced Pathophysiology, specifically targeting
pulmonary system disorders. The 250 questions are drawn from recent examinations and are accompanied by
correct answers and detailed rationales. Content spans from basic pulmonary anatomy and physiology to complex
pathophysiological states such as chronic obstructive pulmonary disease, asthma, pneumonia, pulmonary
embolism, and acute respiratory distress syndrome. Emphasis is placed on understanding the mechanisms of
disease, clinical manifestations, and diagnostic approaches. The material is aligned with the 2026/2027 academic
year and incorporates the latest evidence-based guidelines. This resource is intended to facilitate mastery of
respiratory pathophysiology and to prepare students for high-stakes assessments. Each question is designed to test
critical thinking and application of knowledge to clinical scenarios. The answer format includes explanations of
why each option is correct or incorrect, promoting deeper learning. This practice test is an essential tool for
nursing and healthcare students seeking to excel in advanced pathophysiology courses.
Keywords:
NURS 5315, pulmonary pathophysiology, respiratory exam questions, advanced pathophysiology, COPD, asthma,
ARDS, gas exchange
Answer Format:
Each question is followed by the correct answer and a detailed rationale explaining the underlying pathophysiology
and clinical reasoning. Incorrect answer choices are also discussed to clarify common misconceptions. Rationales
are referenced to current evidence-based guidelines and standard textbooks.
Page 1
,Compliance Checklist:
All questions align with NURS 5315 course objectives
Answers verified by subject matter experts
Rationales cite reputable sources (e.g., Harrison's, UpToDate)
Content reflects 2026/2027 academic year updates
Questions cover all major pulmonary disorders
Format suitable for self-assessment and exam review
Content Area Overview:
Content Area Questions Key Topics Weight
Pulmonary Anatomy and 1-30 Lung volumes, ventilation-perfusion 12%
Physiology matching, gas exchange mechanics
Obstructive Lung Diseases 31-80 COPD, asthma, bronchiectasis, cystic 20%
fibrosis
Restrictive Lung Diseases 81-120 Interstitial lung disease, pulmonary fibrosis, 16%
sarcoidosis
Pulmonary Vascular Disorders 121-160 Pulmonary embolism, pulmonary 16%
hypertension, cor pulmonale
Infectious and Inflammatory 161-200 Pneumonia, tuberculosis, fungal infections, 16%
Conditions ARDS
Pediatric and Neonatal 201-230 Respiratory distress syndrome, 12%
Pulmonary Pathophysiology bronchopulmonary dysplasia, congenital
anomalies
Miscellaneous and Integrated 231-250 Sleep apnea, lung cancer, pleural effusion, 8%
Topics acid-base disorders
Page 2
,Q1. A patient with chronic obstructive pulmonary disease (COPD) presents with increasing dyspnea and a
PaCO2 of 55 mm Hg on room air. Which of the following best describes the primary mechanism contributing
to this patient's hypercapnia?
A. Decreased alveolar ventilation relative to CO2 production
B. Increased dead space ventilation due to pulmonary vasoconstriction
C. Right-to-left intrapulmonary shunting through atelectatic areas
D. Diffusion impairment across thickened alveolar-capillary membranes
Correct Answer: A. Decreased alveolar ventilation relative to CO2 production
Rationale: Hypercapnia in COPD results from alveolar hypoventilation, where the rate of CO2 production exceeds
the rate of alveolar ventilation. While increased dead space and shunting can worsen gas exchange, the direct
cause of elevated PaCO2 is inadequate alveolar ventilation. Diffusion impairment primarily affects O2 uptake, not
CO2 elimination, as CO2 diffuses much more readily.
Why Wrong:
B - Increased dead space ventilation can contribute to wasted ventilation but does not directly cause
hypercapnia unless alveolar ventilation is reduced; hypercapnia is primarily due to insufficient alveolar
ventilation.
C - Right-to-left shunt causes hypoxemia that is refractory to supplemental oxygen, but it does not typically
elevate PaCO2 unless there is concomitant hypoventilation.
D - Diffusion impairment is a major cause of hypoxemia in interstitial lung disease but not in COPD, and
CO2 diffusion is so efficient that it is rarely impaired enough to cause hypercapnia.
Reference: West, J.B. (2020). Pulmonary Pathophysiology: The Essentials, 9th Ed., Ch. 5; Global Initiative for
Chronic Obstructive Lung Disease (GOLD) 2025 Report.
Q2. Which of the following pathophysiological changes is most directly responsible for the increased work of
breathing in a patient with idiopathic pulmonary fibrosis?
A. Decreased lung compliance due to parenchymal scarring
B. Increased airway resistance from bronchiolar inflammation
C. Dynamic hyperinflation from air trapping
D. Respiratory muscle weakness from chronic hypoxia
Correct Answer: A. Decreased lung compliance due to parenchymal scarring
Rationale: Idiopathic pulmonary fibrosis is a restrictive lung disease characterized by progressive fibrosis of the
lung parenchyma, which reduces lung compliance. This means greater transpulmonary pressure is needed to
achieve a given volume change, directly increasing the work of breathing. Airway resistance (B) is typically normal
in restrictive diseases, and dynamic hyperinflation (C) is a feature of obstructive diseases like COPD. Respiratory
muscle weakness (D) can occur but is not the primary mechanism.
Why Wrong:
B - Airway resistance is primarily increased in obstructive lung diseases such as asthma or COPD; in IPF, the
small airways are often normal or only minimally affected.
C - Dynamic hyperinflation is characteristic of obstructive diseases due to expiratory flow limitation;
restrictive diseases have reduced lung volumes without air trapping.
D - Respiratory muscle weakness may develop in advanced disease but is a secondary consequence, not the
direct cause of increased work of breathing in early to moderate IPF.
Reference: Raghu, G., et al. (2022). Idiopathic Pulmonary Fibrosis: An Official ATS/ERS/JRS/ALAT Clinical
Practice Guideline. Am J Respir Crit Care Med, 205(9):e18-e47.
Q3. A patient with acute respiratory distress syndrome (ARDS) is on mechanical ventilation with a FiO2 of
0.6 and positive end-expiratory pressure (PEEP) of 10 cm H2O. Arterial blood gas shows PaO2 55 mm Hg,
PaCO2 35 mm Hg, pH 7.42. Which of the following best explains the persistent hypoxemia?
A. Intrapulmonary shunt due to alveolar filling and collapse
Page 3
, B. Hypoventilation with compensatory respiratory alkalosis
C. Diffusion impairment from thickened alveolar membranes
D. Ventilation-perfusion mismatch with low V/Q units
Correct Answer: A. Intrapulmonary shunt due to alveolar filling and collapse
Rationale: In ARDS, hypoxemia is primarily due to intrapulmonary shunting caused by alveolar filling (edema, inflammation)
and collapse, leading to blood perfusing non-ventilated alveoli. This shunt is refractory to oxygen therapy because the blood
bypasses ventilated alveoli entirely. While V/Q mismatch also occurs, shunt is the dominant mechanism in severe ARDS. The
PaCO2 is normal, ruling out hypoventilation. Diffusion impairment is not the primary issue in the acute phase.
Why Wrong:
B - Hypoventilation would cause hypercapnia, not a normal PaCO2; also, the pH is normal, not alkalotic.
C - Diffusion impairment is more characteristic of interstitial lung diseases and is not the primary cause of hypoxemia in
early ARDS; it can contribute later if fibrosis develops.
D - V/Q mismatch does contribute but is not the predominant mechanism in severe ARDS; shunt is the main cause and is
suggested by the poor response to increased FiO2.
Reference: Matthay, M.A., et al. (2019). Acute Respiratory Distress Syndrome. Nat Rev Dis Primers, 5(1):18.
Q4. A patient with a history of recurrent pulmonary emboli develops progressive dyspnea and signs of right
heart failure. Echocardiography reveals right ventricular hypertrophy and estimated pulmonary artery
systolic pressure of 75 mm Hg. Which of the following cellular changes in the pulmonary vasculature is most
likely contributing to the elevated pressures?
A. Endothelial cell apoptosis leading to capillary rarefaction
B. Smooth muscle cell hypertrophy and hyperplasia in small pulmonary arteries
C. Alveolar epithelial type II cell hyperplasia
D. Neutrophil infiltration and release of elastase
Correct Answer: B. Smooth muscle cell hypertrophy and hyperplasia in small pulmonary arteries
Rationale: Chronic thromboembolic pulmonary hypertension (CTEPH) leads to remodeling of the pulmonary
vasculature, including smooth muscle cell hypertrophy and hyperplasia in the media of small pulmonary arteries,
which increases pulmonary vascular resistance. Endothelial apoptosis (A) is more associated with emphysema.
Alveolar epithelial changes (C) are seen in interstitial lung diseases. Neutrophil elastase (D) is involved in COPD
and alpha-1 antitrypsin deficiency.
Why Wrong:
A - Endothelial cell apoptosis with capillary loss is a feature of emphysema, not pulmonary hypertension
from chronic emboli.
C - Type II cell hyperplasia occurs in response to alveolar injury, as in ARDS or pulmonary fibrosis, not
primarily in pulmonary vascular remodeling.
D - Neutrophil elastase contributes to parenchymal destruction in COPD and alpha-1 antitrypsin deficiency,
not to the vascular remodeling of CTEPH.
Reference: Lang, I.M., et al. (2023). Chronic Thromboembolic Pulmonary Hypertension: JACC State-of-the-Art
Review. J Am Coll Cardiol, 81(12):1151-1169.
Q5. A patient with a suspected pulmonary embolism has a negative CT pulmonary angiogram but a high
clinical suspicion. Which of the following pathophysiological mechanisms could explain a false-negative CT
in a patient with acute PE?
A. Embolus located in a segmental artery that is not well opacified due to timing
B. Complete lysis of the embolus before imaging
C. Presence of a patent foramen ovale with paradoxical embolism
D. Embolus composed primarily of tumor cells rather than thrombus
Correct Answer: A. Embolus located in a segmental artery that is not well opacified due to timing
Rationale: CT pulmonary angiography can miss small emboli, particularly in segmental or subsegmental arteries,
Page 4
