train-of-four
C2CEFR level
95/100Rarity: very rare
TechnicalRegister
A pattern of four successive electrical stimuli delivered to a peripheral nerve to quantify the degree of neuromuscular blockade from the evoked twitches.
A train-of-four ratio above 0.9 confirmed that recovery was adequate for safe extubation.
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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