non-invasive ventilation
C1CEFR level
80/100Rarity: very rare
TechnicalRegister
Ventilatory support delivered through a tight-fitting mask rather than through a tube in the airway.
Non-invasive ventilation is first-line for a COPD patient with type 2 respiratory failure.
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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