pre-oxygenation
C1CEFR level
85/100Rarity: very rare
TechnicalRegister
The administration of high-concentration oxygen before induction to replace alveolar nitrogen and prolong the safe apnoea time.
We pre-oxygenated the patient to an end-tidal oxygen of 90 per cent before giving the induction agent.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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