Altered mental status: Agitated delirium.  Patients generally hyperactive.
Autonomic Instability: Hyperthermia, tachycardia, hypertension, diaphoresis, gastrointestinal illness 
Often labile blood pressure, HR
Neuromuscular Abnormalities: Clonus, ocular clonus, myoclonus, rigidity, hyperreflexia, tremor, seizures
More pronounced in the lower extremities
Clonus (inducible or spontaneous): most common finding
Important to identify because it does not occur in other conditions that mimic<unk> 
Hyperactivity as opposed to rigidity in neuroleptic malignant syndrome
Often labile blood pressure, HR
More pronounced in the lower extremities
Clonus (inducible or spontaneous): most common finding
Important to identify because it does not occur in other conditions that mimic<unk> 
Hyperactivity as opposed to rigidity in neuroleptic malignant syndrome
Important to identify because it does not occur in other conditions that mimic<unk>
Serotonin syndrome
Chorea
Cannabinoid hyperemesis syndrome
Sydenham's chorea
Cholinergic crisis
Neuroleptic malignant syndrome
Cocaine toxicity
Anticholinergic toxicity