The list of diagnostic tests mentioned in various sources as used in the diagnosis of Aggression includes:

• General appearance - distressed, agitated.

• Physical examination - looking for causes of delirium.

• Blood tests - full blood count, thyroid test, Vitamin B12, folate, (looking for a cause that aggravates depression and delirium).

• Blood glucose level ( looking for hypoglycemia )

• Liver function test ( looking for alcoholic liver disease)

• Urine culture - especially in elderly looking for Urinary tract infection that can cause delirium.

• Urine drug screen - consider if suspect illicit drug abuse.

• CT and or MRI Brain - if suspect Alzheimer's disease.