The substance that has been taken may often be determined by asking the person. However, if they will not, or cannot, due to an altered level of consciousness, provide this information, a search of the home or questioning of friends and family may be helpful. Examination for toxidromes,<unk>  testing, or laboratory test may be helpful. Other laboratory test such as glucose, urea and electrolytes, paracetamol levels and salicylate levels are typically done. Negative<unk> -drug interactions have sometimes been misdiagnosed as an acute<unk> , occasionally leading to the assumption of suicide.
Drug overdose
Foreign body aspiration
Carbamate poisoning
Secondary poisoning
Opioid overdose
Pesticide poisoning
Nicotine poisoning
Barbiturate overdose