Table 4.

Selected salient points in a history from a person with catatonia.

Personal and family history	Personal history
Psychiatric conditions	Psychotropic drugs
Prior catatonia or NMS	Serotonergics (including lithium)
Mood disorder	D2 antagonists (including antiemetics)
Psychotic disorder	Clozapine discontinuation
Neurodevelopmental disorder	Benzodiazepine or alcohol discontinuation
Prior ECT	Other medications
Neuro-medical conditions	Immune checkpoint inhibitors
Seizure disorder	Recreational drugs
Known/risk for CNS pathology	Cannabis/cannabinoids
Space-occupying lesions	Stimulants
Neurodegenerative condition	Exposures (e.g. HIV or syphilis)
Encephalitis (esp. autoimmune)	Sexual history
Lupus or other vasculitis	Intravenous drug use

ECT: electroconvulsive therapy; NMS: neuroleptic malignant syndrome; CNS: central nervous system; HIV: human immunodeficiency virus.