SIMPLE BEDSIDE LABORATORY DIAGNOSIS Acetaminophen Alcohols Barbiturates Carbon monoxide Chlorinated hydrocarbon Diazepam Ferrous sulphate Arsenic and Mercury Kerosene Lead Methemoglobinemia Methanol Organochlorines Organophosphates Paraquat Phenothiazines Salicylates (Aspirin) Tricyclic antidepressants Zinc phosphide