Please confirm topic selection

Are you sure you want to trigger topic in your Anconeus AI algorithm?

Please confirm action

You are done for today with this topic.

Would you like to start learning session with this topic items scheduled for future?

Updated: Dec 31 2018

Obstructive Lung Disease Overview

  • Introduction
    • A class of lung diseases characterized by an obstruction to air flow leaving the lungs
    • Types of obstructive lung disease include
      • bronchiectasis
      • chronic bronchitis
      • emphysema
      • asthma
  • Pathophysiology of Obstructive Lung Disease
    • Obstruction of air leaving the lungs leads to ↑ trapped air in the lungs which results in
      • ↑ residual volume (RV)
      • total lung capacity (TLC)
      • functional reserve capacity (FRC)
      • ↓ in FVC
    • V/Q mismatch
      • ↑ in physiologic dead space results in ↓ ventilation and V/Q mismatch
        • the quantifiable result of a V/Q mismatch is an ↑ in the alveolar-arterial gradient (A-a gradient) and ↓ PaO2
  • Evaluation
    • Pulmonary function tests(PFTs)
      • PFTs (spirometry) can be used to distinguish obstructive lung diseases from other types of lung disease (including restrictive lung diseases)
      • the halmark finding of obstructive lung disease is
        • ↓ FEV1 sec/FVC ratio
          • ratio is reduced because FEV1 decreases by a greater amount than FVC
  • Obstructive vs. Restrictive Lung Disease
      • Obstructive vs. Restrictive Lung Disease
      • Variables
      • Restrictive
      • Obstructive
      • TLC
      • Decreased
      • Increased
      • RV
      • Decreased
      • Increased (air is trapped)
      • FEV1sec
      • Decreased
      • Decreased
      • FVC
      • Decreased
      • Decreased
      • FEV1sec/FVC
      • Normal to increased
      • Decreased (hallmark)
      • PaO2
      • Decreased 
      • Decreased
      • A-a gradient
      • Increased (i.e. abnormal)
      • Increased (i.e. abnormal)
  • Treatment
    • Treatment varies by the type of obstructive lung disease
1 of 0
Private Note

Attach Treatment Poll
Treatment poll is required to gain more useful feedback from members.
Please enter Question Text
Please enter at least 2 unique options
Please enter at least 2 unique options
Please enter at least 2 unique options