Mixed drug toxicity (ethanol, methadone, diazepam and risperidone)
AI-generated summary
Cassilla Ellen Dooley, a 34-year-old woman with chronic mental illness and substance dependence, died from mixed drug toxicity involving ethanol, methadone, diazepam, and risperidone at a supported housing facility. She was found unresponsive in her room approximately one hour after a registered nurse assessed her as intoxicated but not requiring emergency services. A toxicologist noted that her recent missed methadone doses would have lowered her tolerance, increasing CNS depression risk. Emergency physicians advised the nurse's decision to monitor rather than escalate was within reasonable care standards given Cassie could walk, communicate, and showed no coma signs. The coroner found no clinical management failures. Key lessons include: establishing clear, documented communication protocols for welfare checks in supported housing, ensuring intoxication policies address polysubstance interactions, and recognizing that missed doses in opioid-dependent patients significantly increase overdose risk even at previously tolerated doses.
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Specialties
psychiatryemergency medicinetoxicologygeneral practiceaddiction medicine
Social and environmental factors in supported housing
Coroner's recommendations
Homeground Services to review ESCG Welfare Checks and Guideline to be evidence-based and increase resident safety
RDNS and ESCG to establish formal arrangement for clear written communication of welfare check orders including start time, frequency, intent, duration, and rescission method
Welfare check orders to include as minimum standard the check start time, frequency, intent, duration, and rescission instructions
Provision of training to all ESCG staff regarding implementation of Welfare Checks and Guideline
RDNS Homeless Person Program clinicians to receive education about ESCG Welfare Checks and Guideline during orientation including their responsibilities
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