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Surfactant Depletion Combined with Injurious Ventilation Results in a Reproducible Model of the Acute Respiratory Distress Syndrome (ARDS)
Published on: April 7, 2021
Ventilation corrected oxygen tension in lethal pulmonary embolism
Abstract:
Lethal pulmonary embolism is associated with hypoxemia and hypocapnia in the vast majority of cases. The easily calculated ventilation corrected oxygen tension was a very sensitive test in patients breathing air. It yielded no normals, four percent mild hypoxemia, and 96 percent moderate to extreme hypoxemia. The alveolar-arterial oxygen tension difference and oxygen ratio were equally sensitive during air breathing. During oxygen inhalation, alveolar-arterial oxygen difference was most sensitive; oxygen ratio was second best; and oxygen saturation was the least sensitive test.
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