Pathophysiology Chapter 15 Quiz
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Questions and Answers

Your patient has a chronic respiratory condition. His stimulus to breathe is triggered by low oxygen levels in the blood. This is known as the ___________. Select one:

  • hypoxic drive (correct)
  • CO2 drive
  • alternate drive
  • COPD drive
  • In order for efficient pulmonary gas exchange to occur: Select one:

  • The percentage of inhaled carbon dioxide must exceed the percentage of inhaled oxygen.
  • The pulmonary capillaries must be completely constricted and the alveoli must be collapsed.
  • There must be low quantities of pulmonary surfactant to allow for full alveolar expansion.
  • Oxygen and carbon dioxide must be able to freely diffuse across the alveolar-capillary membrane. (correct)
  • Based on the information, the patient is most likely suffering from: You are attending to a 3-year-old male patient who is presenting with severe shortness of breath. His parents report that he has had a cough and cold with a low-grade fever for the past two days. Select one:

  • Bacterial infection of the epiglottis.
  • Inflammation of the bronchioles.
  • Inflammation of the lower respiratory tract and bronchospasm.
  • Viral infection of the upper respiratory tract. (correct)
  • In addition to giving him high-flow oxygen, the MOST important treatment for this patient is: A 30-year-old male presents with acute shortness of breath, widespread hives, and facial swelling. Select one:

    <p>Epinephrine.</p> Signup and view all the answers

    This finding is MOST consistent with which of the following conditions? While auscultating an elderly woman's breath sounds, you hear low-pitched 'rattling' sounds at the bases of both of her lungs. Select one:

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

    Treatment with continuous positive airway pressure (CPAP) would MOST likely be contraindicated in which of the following situations? Select one:

    <p>Shortness of breath and a blood pressure of 76/56 mm Hg.</p> Signup and view all the answers

    Which of the following must be assessed in every respiratory patient? Select one:

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

    A pleural effusion is MOST accurately defined as: Select one:

    <p>Fluid accumulation outside the lung.</p> Signup and view all the answers

    Asthma is caused by a response of the: Select one:

    <p>Immune system.</p> Signup and view all the answers

    Crackles (rales) are caused by __________. Select one:

    <p>Air passing through fluid.</p> Signup and view all the answers

    Which of the following is a genetic disorder that predisposes the patient to repeated lung infections? Select one:

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

    What is the MOST likely cause of this patient's condition? A 59-year-old male with a history of emphysema complains of an acute worsening of his dyspnea and pleuritic chest pain following a forceful cough. Select one:

    <p>Spontaneous pneumothorax.</p> Signup and view all the answers

    'PASTE' is an alternate assessment tool for ___________. Select one:

    <p>Respiratory patients.</p> Signup and view all the answers

    After the patient takes a deep breath and depresses the inhaler, you should: Select one:

    <p>Instruct him to hold his breath for as long as he comfortably can.</p> Signup and view all the answers

    Based on this information, your patient is most likely suffering from: You are attending to a 54-year-old female patient in a homeless shelter. Select one:

    <p>Tuberculosis.</p> Signup and view all the answers

    Which of the following conditions would be LEAST likely to result in hypoxia? Select one:

    <p>Severe anxiety.</p> Signup and view all the answers

    This means that the patient has: When auscultating the lungs of a patient with respiratory distress, you hear adventitious sounds. Select one:

    <p>Abnormal breath sounds.</p> Signup and view all the answers

    Which of the following is MOST characteristic of adequate breathing? Select one:

    <p>24 breaths/min with bilaterally equal breath sounds and pink skin.</p> Signup and view all the answers

    In what area of the lungs does respiration occur? Select one:

    <p>Alveoli.</p> Signup and view all the answers

    Based on this information, your patient is most likely suffering from: His parents tell you that their son has had a chest infection for the past two days. Select one:

    <p>Bronchiolitis.</p> Signup and view all the answers

    Study Notes

    Respiratory Emergencies Key Concepts

    • Hypoxic Drive: In patients with chronic respiratory conditions, breathing is primarily stimulated by low oxygen levels in the blood (hypoxic drive).

    • Pulmonary Gas Exchange: Effective gas exchange requires that oxygen and carbon dioxide can easily diffuse across the alveolar-capillary membrane.

    • Viral Infections in Children: A 3-year-old with severe shortness of breath, cough, cold, and fever is likely experiencing a viral infection of the upper respiratory tract.

    • Anaphylaxis Management: In cases presenting with acute shortness of breath, hives, and facial swelling, epinephrine is crucial alongside high-flow oxygen.

    • Auscultation Findings: Low-pitched "rattling" sounds at lung bases indicate aspiration pneumonia.

    • CPAP Contraindications: Continuous positive airway pressure (CPAP) is contraindicated in patients with shortness of breath and severely low blood pressure.

    • Lung Sound Assessment: Lung sounds are essential for every respiratory patient assessment.

    • Pleural Effusion Definition: A pleural effusion is characterized by fluid accumulation outside the lung.

    • Asthma Pathophysiology: Asthma results from immune system responses leading to airway obstruction and inflammation.

    • Crackles (Rales): These sounds occur due to air passing through fluid in the lungs.

    • Cystic Fibrosis: This genetic disorder makes patients prone to frequent lung infections.

    • Spontaneous Pneumothorax Indicators: A patient with emphysema and acute dyspnea following a cough may have a spontaneous pneumothorax, evident by diminished breath sounds.

    • PASTE Assessment Tool: "PASTE" is an assessment tool for evaluating respiratory patients.

    • Inhaler Use in Asthma: After using a metered-dose inhaler, patients should hold their breath to maximize medication absorption.

    • Tuberculosis Symptoms: Symptoms like chronic cough, green sputum, and night sweats may indicate tuberculosis, especially in immunocompromised patients.

    • Hypoxia Risk Factors: Severe anxiety is least likely to result in hypoxia compared to conditions like narcotic overdose or pulmonary edema.

    • Adventitious Lung Sounds: The presence of adventitious sounds suggests abnormal lung conditions.

    • Characteristics of Adequate Breathing: Adequate breathing is characterized by a respiratory rate of around 24 breaths per minute with equal breath sounds and normal skin color.

    • Respiration Site: Primary respiration occurs in the alveoli where gas exchange happens.

    • Bronchiolitis Identification: Signs of decreased air entry and wheezing in a young child with a recent chest infection may indicate bronchiolitis, often associated with respiratory syncytial virus (RSV).

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    Description

    Test your knowledge on respiratory emergencies with this quiz based on Chapter 15 of Pathophysiology. Engage with critical concepts like hypoxic drive and factors affecting pulmonary gas exchange. Perfect for health professionals and students preparing for exams!

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