| Arsenic (blood) | 2.8 mg/L — lethal accumulation (normal: <0.02 mg/L) |
|---|---|
| Arsenic (hair analysis) | Banding pattern consistent with 8–10 days of daily ingestion |
| Delivery likely via | Liquid medium — consistent with tea/chai (most effective carrier for arsenic trioxide) |
| Immediate cause | Cardiac arrest from acute arsenicosis after accumulated chronic exposure |