Hartwig et al reported a severity assessment scale for an adverse drug reaction (ADR). The authors are from the Ohio State University.
Patient selection: adverse drug reaction
Consequence of the ADR
Level
no intervention or change in drug therapy
1
therapy with drug changed (held, discontinued, etc); no need for an antidote and no increase in length of stay (LOS)
2
antidote given or other treatment as required; no increase in LOS
3
length of stay increased >= 1 day if hospitalized
4
reason for admission to the hospital
hospital admission requiring intensive medical care
5
permanent harm to the patient
6
death of the patient, either directly or indirectly
7
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Specialty: Pharmacology, clinical
