Phrase guide

SpO2/FiO2 ratio

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

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noun

Meaning 1

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

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From SpO2 + FiO2 + ratio.

Word forms

Inflections and variants

SpO2/FiO2 ratio — canonical
SpO2/FiO2 ratios — plural

Word family

Derived and related words

Derived: S/F ratio, SpO2/FiO2

Related: ratio, SpO2, FiO2

Semantic map

Other relationships

Sources

Where this information comes from

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