Usually clinical diagnosis
UDS: false positive screens for PCP can result from dextromethorphan, diphenhydramine, doxylamine, ibuprofen, meperidine, tramadol, venlafaxine)
Evaluate for dangerous effects of drug:
Occult trauma
Rhabdomyolysis
Hypoglycemia
Hepatic injury due to hyperthermia
End-organ damage due to hypertensive emergency
Evaluate for other causes of presentation (e.g. other drugs, infection, endocrine/metabolic disorders, other causes of AMS)
Occult trauma
Rhabdomyolysis
Hypoglycemia
Hepatic injury due to hyperthermia
End-organ damage due to hypertensive emergency
Phencyclidine toxicity
25C-NBOMe‎
Mescaline toxicity
Alcohol
Tianeptine toxicity
Amphetamines
Carbamate toxicity
Bath salts