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This lesson reviews the mechanisms and causes of hypoxemia, focusing on impaired diffusion, ventilation-perfusion mismatch, and shunting. It relates these mechanisms to examples such as pulmonary embolism, Tetralogy of Fallot, and radiographic patterns.
Syllabus
Intro
Learning Objectives
Mechanisms of Hypoxemia
Gas Exchange Depends on Diffusion
V/Q Matching
V/Q Mismatch Pulmonary Embolism
Tetralogy of Fallot
More about V/Q Mismatch
Influence of Shunt Fraction on Response to Changes in Fo
Approach to Hypoxemia
Etiologies of Hypoxemia (Patterns of Radiographic Abnormalities)
Taught by
Strong Medicine