UD
As directed
What UD stands for
UD is a medical abbreviation for as directed - written out in full as “Ut dictum (as directed)”. TermDecode files it under general abbreviations.
Risk
ISMP lists UD as error-prone: as directed may be mistaken as unit dose.
Safer Alternative
Write "as directed"
Seen in context
UD misread as unit dose
Sources
The risk description and safer alternative above are reproduced from these published lists.
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