Consider discharge for patients who are asymptomatic after 4-6hr obs, 2 downtrending<unk>  levels, and no worsening of renal function
Admit all patients with Li level >1.5
Admit all patients with ingestion of sustained-release preparation (regardless of Li level)
Lithium toxicity
Aluminum toxicity
Antipsychotic toxicity
Antimony toxicity
Gamma hydroxybutyrate withdrawal
Arsenic toxicity
Benzodiazepine toxicity
Barium toxicity