Can be intentional, deliberate, inadvertent, by mistake, or by proxy. Sudden or delayed. See also under XI r/s. Death may occur from overdose, poisoning, intoxication, asphyxia, arrhythmia or CPA. Acute coronary event or be qualified as 'sudden cardiac death'. Laboratory evaluation and forensic measurements of drug(s) and substance(s) of interest on blood or tissue samples at/from autopsy is indicated in any unexplained death (PMID 24365689). See also under XIr. Fatal blood and tissue concentrations of 200+ drugs on PMID 15172079