S/F ratio

A form of SpO2/FiO2 ratio — A proxy measurement for the assessment of lung function using the PaO2/FiO2 ratio.

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Meanings

nounS/F ratio (plural S/F ratios)

plural S/F ratios · alternative SF ratio

  1. abbreviationinitialismInitialism of SpO2/FiO2 ratio.

Origin

From SpO2/FiO2 ratio.

Full word history & related roots →
Cite this entry
APA

S/F ratio. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/S%2FF%20ratio

MLA

“S/F ratio.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/S%2FF%20ratio. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “S/F ratio,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/S%2FF%20ratio.

Source: S/F ratio on Wiktionary, CC BY-SA 4.0.