Finding into death of AH

37y · Male·Mixed Drug Toxicity (Oxycodone, Quetiapine, Pregabalin and Clonazepam)

A 37-year-old man died from mixed drug toxicity (oxycodone, quetiapine, pregabalin, clonazepam) after ingesting unknown quantities of his own medications in an ED. He presented with trauma symptoms four days post-motor vehicle accident and was observed taking Targin (oxycodone/naloxone) at 9:50am. Despite receiving naloxone doses and being in a monitored resuscitation cubicle, he deteriorated with worsening conscious state (GCS 15→11→9) and was found in cardiac arrest at 2:22pm. Critical failures included: inadequate knowledge of Targin's prolonged action and naloxone's short duration; no documented VPIC consultation despite overdose recognition; poor handover (substance recorded as "unknown" by consultant despite nursing documentation of Targin); inadequate observation with last nursing notes at 1:00pm and observations at 1:45pm showing GCS 9 with no escalation; and monitor alarm failure. The coroner found the death readily preventable with appropriate pharmacological knowledge and monitoring. Hospital implemented substantial improvements including new monitoring equipment, dedicated staff allocation for high-acuity patients, enhanced observation protocols, and educational changes.