NURS 5315 PULMONARY RESPIRATORY ADVANCED PATHOPHYSIOLOGY EXAM
– QUESTIONS AND ANSWERS | VERIFIED AND WELL DETAILED ANSWERS |
PLUS RATIONALES | DOWNLOAD AND PASS | LATEST EXAM UPDATE 2026/2027
Core Domains
Ventilation-Perfusion (V/Q) Mismatching and Shunt Physiology
Obstructive Pulmonary Diseases (COPD, Asthma, Bronchiectasis)
Restrictive Pulmonary Diseases (Interstitial Lung Disease, Chest Wall Disorders)
Pulmonary Vascular Disorders (Pulmonary Hypertension, Embolism)
Infectious and Inflammatory Pulmonary Processes
Acid-Base Homeostasis and Arterial Blood Gas Interpretation
Respiratory Failure (Type I and Type II)
Pulmonary Neoplasms and Malignancy
Pharmacologic Management of Pulmonary Pathophysiology
, Ethics, Legal Standards, and Advanced Practice Roles in Respiratory Care
Introduction
The purpose of this examination is to evaluate the clinical competency and advanced
pathophysiological knowledge of nurse practitioners in the realm of respiratory care. This
assessment tests the ability to synthesize foundational physiological theory with complex
clinical scenarios, emphasizing evidence-based decision-making and patient safety. By
utilizing a diverse array of multiple-choice and scenario-based questions, the exam
probes the practitioner's skill in differential diagnosis, regulatory compliance, and
professional ethics within high-acuity respiratory environments. Success requires a deep
understanding of lung mechanics, gas exchange dynamics, and the systemic
implications of pulmonary pathology in diverse patient populations.
SECTION ONE: QUESTIONS 1–50
A patient with COPD presents with worsening dyspnea. ABG reveals pH 7.28,
PaCO2 65 mmHg, PaO2 55 mmHg. What is the primary physiological mechanism
for this finding?
A. Ventilation-perfusion mismatch
B. Alveolar hypoventilation
, C. Diffusion impairment
D. Intrapulmonary shunt
🟢 Correct Answer: B. Alveolar hypoventilation
🔴 Explanation: A high PaCO2 (hypercapnia) with respiratory acidosis indicates that the
patient is unable to clear CO2 due to inadequate alveolar ventilation, a hallmark of acute-
on-chronic respiratory failure in COPD.
Which structural change is most characteristic of chronic bronchitis?
A. Destruction of alveolar septa
B. Hypertrophy of mucus-secreting goblet cells
C. Thinning of the bronchial walls
D. Permanent dilation of bronchioles
🟢 Correct Answer: B. Hypertrophy of mucus-secreting goblet cells
🔴 Explanation: Chronic bronchitis is defined clinically by a productive cough and
pathologically by hyperplasia and hypertrophy of mucus-secreting glands and goblet
cells in the airways.
In a patient with a massive pulmonary embolism, which finding is most likely during
a physical exam?
A. Decreased jugular venous pressure
B. Bradycardia
, C. S3 heart sound and loud P2
D. Pleural friction rub
🟢 Correct Answer: C. S3 heart sound and loud P2
🔴 Explanation: Massive PE increases pulmonary vascular resistance, leading to acute
right ventricular strain, which manifests as an S3 gallop and an accentuated pulmonic
component of the second heart sound (P2).
Which of the following best describes the pathophysiology of Type I respiratory
failure?
A. Hypercapnic failure
B. Hypoxemic failure
C. Mixed failure
D. Ventilatory failure
🟢 Correct Answer: B. Hypoxemic failure
🔴 Explanation: Type I respiratory failure is defined as hypoxemic respiratory failure
(PaO2 < 60 mmHg) with normal or low PaCO2, often resulting from V/Q mismatch or
shunt.
A patient has a V/Q ratio of zero in the left lower lobe. This represents which
phenomenon?
A. Dead space ventilation
– QUESTIONS AND ANSWERS | VERIFIED AND WELL DETAILED ANSWERS |
PLUS RATIONALES | DOWNLOAD AND PASS | LATEST EXAM UPDATE 2026/2027
Core Domains
Ventilation-Perfusion (V/Q) Mismatching and Shunt Physiology
Obstructive Pulmonary Diseases (COPD, Asthma, Bronchiectasis)
Restrictive Pulmonary Diseases (Interstitial Lung Disease, Chest Wall Disorders)
Pulmonary Vascular Disorders (Pulmonary Hypertension, Embolism)
Infectious and Inflammatory Pulmonary Processes
Acid-Base Homeostasis and Arterial Blood Gas Interpretation
Respiratory Failure (Type I and Type II)
Pulmonary Neoplasms and Malignancy
Pharmacologic Management of Pulmonary Pathophysiology
, Ethics, Legal Standards, and Advanced Practice Roles in Respiratory Care
Introduction
The purpose of this examination is to evaluate the clinical competency and advanced
pathophysiological knowledge of nurse practitioners in the realm of respiratory care. This
assessment tests the ability to synthesize foundational physiological theory with complex
clinical scenarios, emphasizing evidence-based decision-making and patient safety. By
utilizing a diverse array of multiple-choice and scenario-based questions, the exam
probes the practitioner's skill in differential diagnosis, regulatory compliance, and
professional ethics within high-acuity respiratory environments. Success requires a deep
understanding of lung mechanics, gas exchange dynamics, and the systemic
implications of pulmonary pathology in diverse patient populations.
SECTION ONE: QUESTIONS 1–50
A patient with COPD presents with worsening dyspnea. ABG reveals pH 7.28,
PaCO2 65 mmHg, PaO2 55 mmHg. What is the primary physiological mechanism
for this finding?
A. Ventilation-perfusion mismatch
B. Alveolar hypoventilation
, C. Diffusion impairment
D. Intrapulmonary shunt
🟢 Correct Answer: B. Alveolar hypoventilation
🔴 Explanation: A high PaCO2 (hypercapnia) with respiratory acidosis indicates that the
patient is unable to clear CO2 due to inadequate alveolar ventilation, a hallmark of acute-
on-chronic respiratory failure in COPD.
Which structural change is most characteristic of chronic bronchitis?
A. Destruction of alveolar septa
B. Hypertrophy of mucus-secreting goblet cells
C. Thinning of the bronchial walls
D. Permanent dilation of bronchioles
🟢 Correct Answer: B. Hypertrophy of mucus-secreting goblet cells
🔴 Explanation: Chronic bronchitis is defined clinically by a productive cough and
pathologically by hyperplasia and hypertrophy of mucus-secreting glands and goblet
cells in the airways.
In a patient with a massive pulmonary embolism, which finding is most likely during
a physical exam?
A. Decreased jugular venous pressure
B. Bradycardia
, C. S3 heart sound and loud P2
D. Pleural friction rub
🟢 Correct Answer: C. S3 heart sound and loud P2
🔴 Explanation: Massive PE increases pulmonary vascular resistance, leading to acute
right ventricular strain, which manifests as an S3 gallop and an accentuated pulmonic
component of the second heart sound (P2).
Which of the following best describes the pathophysiology of Type I respiratory
failure?
A. Hypercapnic failure
B. Hypoxemic failure
C. Mixed failure
D. Ventilatory failure
🟢 Correct Answer: B. Hypoxemic failure
🔴 Explanation: Type I respiratory failure is defined as hypoxemic respiratory failure
(PaO2 < 60 mmHg) with normal or low PaCO2, often resulting from V/Q mismatch or
shunt.
A patient has a V/Q ratio of zero in the left lower lobe. This represents which
phenomenon?
A. Dead space ventilation
