Respiratory System Diseases
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Questions and Answers

What is the primary mechanism of gas exchange in the lungs?

  • Osmosis
  • Facilitated diffusion
  • Diffusion (correct)
  • Active transport
  • A patient with chronic obstructive pulmonary disease (COPD) undergoes lung function testing. Which of the following results would be expected?

  • Increased forced expiratory volume (FEV1)
  • Decreased forced vital capacity (FVC)
  • Increased residual volume (RV) (correct)
  • Decreased total lung capacity (TLC)
  • A patient with asthma undergoes arterial blood gas measurement. What would be expected in an acute asthma attack?

  • Metabolic alkalosis
  • Respiratory alkalosis
  • Respiratory acidosis (correct)
  • Metabolic acidosis
  • What is the primary characteristic of obstructive lung disease?

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

    A patient with chronic bronchitis undergoes lung function testing. Which of the following results would be expected?

    <p>Increased residual volume (RV)</p> Signup and view all the answers

    What is tachypnea characterized by?

    <p>High respiratory rate</p> Signup and view all the answers

    In lung function testing, what does FEV1 measure?

    <p>Forced expiratory volume in 1 second</p> Signup and view all the answers

    What is a characteristic of obstructive lung diseases?

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

    What is the term for a condition where there is too much carbon dioxide in the blood?

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

    What is the term for difficulty breathing, often experienced by patients with obstructive lung diseases?

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

    What is the primary function of the diaphragm during inspiration?

    <p>It contracts to increase chest volume</p> Signup and view all the answers

    Which of the following would be expected in a patient with respiratory acidosis?

    <p>Decreased pH and increased CO2</p> Signup and view all the answers

    What is the primary characteristic of conducting airways?

    <p>No gaseous exchange occurs</p> Signup and view all the answers

    What is the term for the ability of the lungs to stretch and expand?

    <p>Lung compliance</p> Signup and view all the answers

    What is the primary function of surfactant in the alveoli?

    <p>To decrease surface tension</p> Signup and view all the answers

    What is the primary function of bronchodilators?

    <p>Dilate muscle in airway</p> Signup and view all the answers

    What is the main risk factor for developing COPD?

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

    What is chronic bronchitis characterized by?

    <p>Persistent cough with sputum for at least 3 months in at least 2 consecutive years</p> Signup and view all the answers

    What is the term for the constriction of airway muscle, increasing airway resistance?

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

    What is the primary function of inhaled corticosteroids?

    <p>Reduce inflammation and mucus secretion</p> Signup and view all the answers

    What is the term for progressive dyspnea, cough, wheezing, weight loss, finger clubbing, and cyanosis?

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

    What is the effect of adrenaline on airway muscle?

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

    What is the term for the resistance to airflow in the airways?

    <p>Airway resistance</p> Signup and view all the answers

    What is the primary characteristic of chronic obstructive pulmonary disease (COPD)?

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

    What is the primary purpose of measuring forced vital capacity (FVC) in pulmonary function tests?

    <p>To diagnose obstructive lung diseases</p> Signup and view all the answers

    A patient with respiratory acidosis is likely to have which of the following blood gas measurements?

    <p>High CO2 levels and low pH</p> Signup and view all the answers

    What is the significance of a low O2 saturation level in arterial blood gas measurements?

    <p>It suggests a issue with hemoglobin carrying oxygen</p> Signup and view all the answers

    Which of the following pulmonary function tests is used to measure lung volumes?

    <p>Pulmonary volume test</p> Signup and view all the answers

    In chronic bronchitis, what is the primary mechanism leading to hypoventilation and increased CO2 retention?

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

    Which of the following is a consequence of airway obstruction, V/Q mismatch, and pulmonary capillary vasoconstriction?

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

    In emphysema, what is the primary mechanism leading to functional obstruction?

    <p>Loss of elastic tissue in lungs</p> Signup and view all the answers

    What is the primary mechanism by which smoking directly contributes to the pathogenesis of chronic bronchitis?

    <p>Inhibition of ciliary function and mucus clearance</p> Signup and view all the answers

    In chronic bronchitis, what is the consequence of chronic hypercapnia?

    <p>Hypoxic drive</p> Signup and view all the answers

    What is the characteristic pulmonary function test result in patients with emphysema?

    <p>Obstructive lung disease pattern with decreased diffusion capacity</p> Signup and view all the answers

    What is the typical arterial blood gas finding in patients with COPD at rest?

    <p>Normal blood gas levels due to compensation</p> Signup and view all the answers

    What is the primary mechanism of mucous obstruction in cystic fibrosis?

    <p>Reduced CFTR function leading to increased mucous viscosity</p> Signup and view all the answers

    What is the characteristic lung finding in patients with emphysema?

    <p>Lung hyperinflation</p> Signup and view all the answers

    Which of the following is a therapeutic approach for cystic fibrosis?

    <p>Removal of mucous and bronchodilators</p> Signup and view all the answers

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