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Table 1 Adverse drug events (ADEs) and potential ADEs: study definitions and examples [24]

From: Incidence of medication errors in a Moroccan medical intensive care unit

Example Definitions Event type
Medication error (ME) Any injury in any stage of the medication process, including ordering, transcribing, dispensing, administering or monitoring A dose of non-critical medication is not given
Potential ADE An incident with potential for injury; all potential ADEs are ME An order was written for an overdose of medication but the mistake was intercepted by the pharmacy
ADE Injury due to a drug Drug rush
   Preventable Due to an error Coma due to over dose of sedative
   Non preventable (adverse drug reaction) Injury, but no error involved Allergic reaction in patient not known to be allergic