Admit for lab abnormalities or persistent AMS
Discharge after observation period if AMS and sympathomimetic symptoms resolve with out end-organ damage
MDPV has an estimated 6-8 hour duration of action, but may vary. Consider consult with poison control prior to discharge.
Bath salts toxicity
Cocaine
Hydrogen fluoride toxicity
Amphetamines
Jet Propulsion Fuel 8 toxicity
Synthetic cathinones 
Lewisite toxicity
Ketamine