Respiratory Distress Syndrome Overview
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Questions and Answers

What is the primary role of surfactant cells in the lungs?

  • Prevent alveolar collapse (correct)
  • Enhance respiratory muscle strength
  • Increase lung compliance
  • Promote lung elasticity
  • In Acute Respiratory Distress Syndrome (ARDS), what is the hallmark feature associated with the presence of a hyaline membrane?

  • Alkalosis
  • Acidosis
  • Hypoxemia (correct)
  • Hypercapnia
  • What is the consequence of a VQ mismatch in the lungs?

  • Decreased ventilation relative to perfusion (correct)
  • Improved lung compliance
  • Increased oxygen delivery to tissues
  • Enhanced CO2 removal from the body
  • During the proliferative phase of ARDS, why does the body produce dense and fibrous lung tissue?

    <p>To absorb fluid in the alveoli sac</p> Signup and view all the answers

    What is the hallmark sign and symptom of refractory hypoxemia?

    <p>Persistent low oxygen saturation despite high levels of oxygen</p> Signup and view all the answers

    Which condition leads to the formation of a hyaline membrane in the lungs?

    <p>Decrease in surfactant cells</p> Signup and view all the answers

    What is the primary cause of a ventilation-perfusion mismatch in Acute Respiratory Distress Syndrome?

    <p>Presence of fluid in the alveoli sac</p> Signup and view all the answers

    How does a decrease in surfactant cells contribute to lung damage in ARDS?

    <p>Leads to stiffening and collapse of alveoli</p> Signup and view all the answers

    Which phase of ARDS involves damage to the capillary membrane and the leaking of protein-rich fluids into the interstitium and sac, causing pulmonary edema?

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

    What is the primary function of surfactant cells in the lungs during ARDS?

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

    Which condition is characterized by a decrease in gas exchange due to the collapse of alveolar sacs and low oxygen levels in the blood?

    <p>Hyaline membrane disease</p> Signup and view all the answers

    In ARDS, what can lead to a ventilation-perfusion mismatch, impacting oxygenation of the blood?

    <p>Altered blood flow to ventilated areas</p> Signup and view all the answers

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