Obstructive Lung Disease Cardiopulmonary Lecture Content
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Questions and Answers

What is the initial physiologic defect that varies according to each pathology?

  • Impaired gas exchange
  • Accessory muscle activation
  • Increased work of breathing
  • Varying initial V/Q ratio (correct)

    • What is the optimal V/Q ratio for maintaining normal gas exchange?

  • 1.5
  • 1.0
  • 0.8 (correct)
  • 0.5

    • What is the consequence of a mismatch between ventilation and perfusion in the area of pathology?

  • Decreased respiratory rate
  • Impaired gas exchange and increased work of breathing (correct)
  • Increased lung compliance
  • Enhanced gas exchange efficiency

    • What is the degree of physical correspondence between ventilated and perfused areas of the lungs called?

    <p>$V/Q$ matching</p> Signup and view all the answers

    What is the blood flow through the pulmonary circulation that is available for gas exchange called?

    <p>$Perfusion$</p> Signup and view all the answers

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