Finding into death of Stephen Liat Kai Lim

56y · Male·Benzalkonium chloride toxicity

Stephen Lim, aged 56, died from benzalkonium chloride toxicity after deliberately ingesting approximately 2.5 litres of Pine-O-Cleen disinfectant on 25 September 2010. His death occurred from acute lung injury due to aspiration of the irritant substance. Critical lessons include: (1) the emergency dispatch system's reliance on symptom-based triage is fundamentally inadequate for poisoning cases where patients may be asymptomatic at presentation but deteriorating; (2) the call-taker should have asked about breathing abnormality on the first call, though even this may not have been preventable; (3) subsequent ETA calls should have been escalated to a duty manager; (4) an unusual volume of emergency calls (1193 in 12 hours vs typical 640-974) and paramedic shortages (91 of 290 called sick) created a "perfect storm"; and (5) toxicological expertise and poison information centre involvement should be integrated earlier in the dispatch process for poisoning cases.