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Medical Definition of Dibucaine number
1. A test for differentiation of one of several forms of atypical pseudocholinesterases that are unable to inactivate succinylcholine at normal rates; based upon percent inhibition of the enzymes by dibucaine, normal enzyme has a DN of 75 and above, heterozygous atypical enzyme has a DN of 40-70, and homozygous atypical enzyme has a DN of less than 20. See: fluoride number. (05 Mar 2000)
Lexicographical Neighbors of Dibucaine Number
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