Pulse oximetry for the diagnosis and management of acute respiratory distress syndrome.

ABSTRACT: The diagnosis of acute respiratory distress syndrome (ARDS) traditionally requires calculation of the ratio of partial pressure of arterial oxygen to fraction of inspired oxygen (PaO₂/FiO₂) using arterial blood, which can be costly and is not possible in many resource-limited settings. By contrast, pulse oximetry is continuously available, accurate, inexpensive, and non-invasive. Pulse oximetry-based indices, such as the ratio of pulse-oximetric oxygen saturation to FiO₂ (SpO₂/FiO₂), have been validated in clinical studies for the diagnosis and risk stratification of patients with ARDS. Limitations of the SpO₂/FiO₂ ratio include reduced accuracy in poor perfusion states or above oxygen saturations of 97%, and the

SUBMITTER: Wick KD 

PROVIDER: S-EPMC9423770 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature