Exam 3 - Pulmonary
66 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary function of alveoli in the respiratory system?

  • Connect upper and lower airways
  • Produce mucus
  • Warm and humidify air
  • Conduct gas exchange (correct)
  • Which structure is responsible for producing surfactant in the lungs?

  • Acinus
  • Cilia
  • Type II alveolar epithelial cells (correct)
  • Goblet cells
  • What is the main function of the dorsal respiratory group in the respiratory system?

  • Receive impulses from chemoreceptors in carotid bodies
  • Control inspiratory and expiratory neurons
  • Detect the amount of oxygen in arterial blood
  • Set the basic automatic rhythm of breathing (correct)
  • Which term refers to the volume of air inspired or expired with each normal breath?

    <p>Tidal volume (TV)</p> Signup and view all the answers

    What does the Haldane effect depend on for effective gas exchange?

    <p>Partial pressure of carbon dioxide</p> Signup and view all the answers

    In which area of the lungs does perfusion exceed ventilation due to gravity?

    <p>Lower lobes</p> Signup and view all the answers

    Which condition is characterized by excess water in the lung due to disturbances in capillary hydrostatic pressure, capillary oncotic pressure, or capillary permeability?

    <p>Pulmonary edema</p> Signup and view all the answers

    What is the most common cause of pulmonary edema?

    <p>Left-sided heart disease</p> Signup and view all the answers

    Which syndrome is a rare life-threatening complication that can occur after relief of upper airway obstruction?

    <p>Postobstructive pulmonary edema</p> Signup and view all the answers

    What are the typical clinical manifestations associated with acute lung injury (ALI) or acute respiratory distress syndrome (ARDS)?

    <p>Dyspnea and hypoxemia with poor response to oxygen supplementation</p> Signup and view all the answers

    What sequence of events occurs in ARDS in terms of clinical manifestations?

    <p>Hypercapnia, respiratory acidosis, and worsening hypoxemia</p> Signup and view all the answers

    What causes postobstructive pulmonary edema (POPE) to develop?

    <p>Negative pressure after upper airway obstruction relief</p> Signup and view all the answers

    Which factor contributes to the pathophysiology of ARDS?

    <p>Surfactant inactivation</p> Signup and view all the answers

    What is the primary cause of absorption atelectasis?

    <p>Gradual absorption of air from obstructed alveoli</p> Signup and view all the answers

    Which condition is characterized by an excessive amount of fibrous tissue in the lung?

    <p>Pulmonary fibrosis</p> Signup and view all the answers

    What are the clinical manifestations of idiopathic pulmonary fibrosis?

    <p>Increasing dyspnea on exertion</p> Signup and view all the answers

    Which condition is characterized by a severe inflammatory response mediated primarily by oxygen radicals?

    <p>Oxygen toxicity</p> Signup and view all the answers

    What are the most common causes of pneumoconiosis?

    <p>Inhalation of inorganic dust particles</p> Signup and view all the answers

    Which of the following is NOT a clinical manifestation of oxygen toxicity?

    <p>Hypoxemia with leukocytosis</p> Signup and view all the answers

    How does pulmonary fibrosis differ from atelectasis?

    <p>Pulmonary fibrosis involves decreased surfactant production.</p> Signup and view all the answers

    What distinguishes systemic disorders affecting the lungs from pneumoconiosis?

    <p>Effect on the airways, pleurae, or lung parenchyma</p> Signup and view all the answers

    Which type of pleural effusion is characterized by the presence of chyle exudate?

    <p>Chylothorax</p> Signup and view all the answers

    What is the main cause of hypercapnia?

    <p>Decreased drive to breathe</p> Signup and view all the answers

    What are common clinical manifestations of empyema, an infected pleural effusion?

    <p>Cyanosis and fever</p> Signup and view all the answers

    In acute respiratory failure, which of the following is a common characteristic?

    <p>Hypoventilation</p> Signup and view all the answers

    In which condition is lung compliance reduced, making it difficult to get air in?

    <p>Pulmonary fibrosis</p> Signup and view all the answers

    Which lung disorder is characterized by the passage of fluid and solid particles into the lungs?

    <p>Aspiration</p> Signup and view all the answers

    What characterizes chest wall restriction?

    <p>Impaired respiratory muscle function</p> Signup and view all the answers

    What is the most frequent site for aspiration in the lungs?

    <p>Right lower lobe</p> Signup and view all the answers

    What is a key symptom of flail chest?

    <p>Paradoxical movement of the chest with breathing</p> Signup and view all the answers

    What differentiates primary pneumothorax from secondary pneumothorax?

    <p>Primary pneumothorax occurs unexpectedly in healthy individuals</p> Signup and view all the answers

    Which type of effusion is watery and diffuses out of the capillaries?

    <p>Transudative effusion</p> Signup and view all the answers

    What leads to the presence of air or gas in the pleural space in a pneumothorax?

    <p>Trauma to the lung tissue</p> Signup and view all the answers

    What are common clinical manifestations of restrictive lung disease?

    <p>Dyspnea and pleural pain</p> Signup and view all the answers

    Why does a flail chest cause hypoventilation?

    <p>Paradoxical chest movement impairs ventilation</p> Signup and view all the answers

    What type of lung disease increases the stiffness of the lung and limits expansion?

    <p>Restrictive lung disease</p> Signup and view all the answers

    What is a hallmark feature of chest wall pain arising from muscle or rib pain?

    <p>Increased work of breathing</p> Signup and view all the answers

    What is the primary cause of primary emphysema?

    <p>Inherited deficiency of α1-antitrypsin</p> Signup and view all the answers

    Which type of lung disease involves damage that is more randomly distributed throughout the entire acinus?

    <p>Panacinar emphysema</p> Signup and view all the answers

    What is a fundamental abnormality in cystic fibrosis?

    <p>Chloride transport abnormality</p> Signup and view all the answers

    Which lung condition results in a chronic productive cough lasting at least 3 months of the year for 2 consecutive years?

    <p>Chronic bronchitis</p> Signup and view all the answers

    In which lung disease does the involved lobe undergo consolidation?

    <p>Pneumococcal pneumonia</p> Signup and view all the answers

    What multi-system disease is characterized by autosomal recessive inheritance and leads to chronic inflammation and fibrosis in the lungs?

    <p>Cystic fibrosis</p> Signup and view all the answers

    What is the primary function of surfactant in the lungs?

    <p>Keeping alveoli open and free of fluid</p> Signup and view all the answers

    In which condition does hypoxic vasoconstriction occur to direct blood flow to better-ventilated areas of the lungs?

    <p>ARDS</p> Signup and view all the answers

    Which factor has the most significant effect on the ventilation-perfusion ratio in the lungs?

    <p>PaO2 levels</p> Signup and view all the answers

    What is the primary function of the dorsal respiratory group in the respiratory system?

    <p>Maintain the basic automatic rhythm of breathing</p> Signup and view all the answers

    Which characteristic distinguishes pulmonary circulation from systemic circulation?

    <p>Blood pressure (18mmHg vs 90mmHg)</p> Signup and view all the answers

    What is the primary difference between absorption atelectasis and compression atelectasis?

    <p>Absorption atelectasis results from obstructed or hypo-ventilated alveoli, while compression atelectasis results from external compression on the lung.</p> Signup and view all the answers

    How does oxygen toxicity primarily cause damage to the lungs?

    <p>By disrupting surfactant production and causing interstitial edema.</p> Signup and view all the answers

    What distinguishes idiopathic pulmonary fibrosis from pulmonary fibrosis due to exposure to toxic gases?

    <p>Increasing dyspnea on exertion is a clinical manifestation of idiopathic pulmonary fibrosis but not toxic gas exposure.</p> Signup and view all the answers

    Which systemic diseases specifically affect the lung parenchyma?

    <p>Idiopathic pulmonary fibrosis and systemic disorders</p> Signup and view all the answers

    What is the most common cause of pneumoconiosis?

    <p>Silica, asbestos, and coal</p> Signup and view all the answers

    How does pulmonary fibrosis differ from systemic disorders affecting the lungs?

    <p>Pulmonary fibrosis involves an excessive amount of fibrous tissue in the lung, while systemic disorders affect the airways or pleurae.</p> Signup and view all the answers

    What characteristic distinguishes obstructive lung diseases like asthma, bronchitis, and emphysema?

    <p>Increased airway resistance</p> Signup and view all the answers

    What physiological change occurs in obstructive lung diseases leading to the need for greater pressure to overcome resistance to airflow?

    <p>Constriction of airways</p> Signup and view all the answers

    What is the primary characteristic of asthma that distinguishes it from other obstructive lung diseases?

    <p>Chronic inflammatory disorder of the bronchial mucosa</p> Signup and view all the answers

    Which factor contributes to the pathophysiology of obstructive lung diseases such as asthma?

    <p>Variable airflow obstruction</p> Signup and view all the answers

    Why do obstructive lung diseases like emphysema make it difficult to get air out?

    <p>Increased mucous secretions</p> Signup and view all the answers

    What happens to the FEV1/FVC ratio in obstructive lung diseases?

    <p>It decreases</p> Signup and view all the answers

    What is the primary cause of an abscess in the lung?

    <p>Aspiration</p> Signup and view all the answers

    Which of the following is a common manifestation of pulmonary embolism?

    <p>Chest pain and shortness of breath</p> Signup and view all the answers

    What is a significant risk factor for laryngeal cancer?

    <p>Smoking and alcohol consumption</p> Signup and view all the answers

    Which type of lung cancer is characterized by chest wall pain, pleural effusion, and cough?

    <p>Large cell carcinoma</p> Signup and view all the answers

    What is the worst prognosis associated with small cell carcinoma (oat) of the lung?

    <p>Rapid growth and early metastasis</p> Signup and view all the answers

    In pulmonary artery hypertension, what is the key feature that differentiates it from other lung conditions?

    <p>Mean pulmonary artery pressure above 25 mm Hg at rest</p> Signup and view all the answers

    More Like This

    Pleural Effusion Quiz
    6 questions

    Pleural Effusion Quiz

    JawDroppingWalrus1974 avatar
    JawDroppingWalrus1974
    Pleural Effusion Quiz
    73 questions

    Pleural Effusion Quiz

    PraiseworthyHill avatar
    PraiseworthyHill
    Respiratory Conditions Management Quiz
    34 questions
    Pleural Effusion and Chest Imaging Quiz
    41 questions
    Use Quizgecko on...
    Browser
    Browser