Labs
Glucose, CBC, chem, UA, CSF, LFT, utox, VBG, BAL, thyroid, Calcium (ionized)
ECG
Neuroimaging
XR
UA
Glucose, CBC, chem, UA, CSF, LFT, utox, VBG, BAL, thyroid, Calcium (ionized)
Altered mental status 
Sympathomimetics/cocaine
Sedation 
Anticholinergics
Extrapyramidal reaction
Arsenic
Tremor
LSD