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SpO2 to FIO2 Ratio (Oxygen Saturation by Pulse Oximetry to Fraction of Inspired Oxygen Ratio)

Specialty:

Pulmonology & Critical Care

Objective:

ICD-10:

Description:

The ratio of oxygen saturation by pulse oximetry (SpO2) to the fraction of inspired oxygen (FIO2) is readily available and noninvasive, while measuring PaO2 requires an arterial blood gas. Therefore, the use of the SpO2 to FIO2 is attractive for the diagnosis and monitoring of a patient with acute lung injury (ALI) or acute respiratory distress syndrome (ARDS).

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