› Scoring and monitoring tools
› Richmond Agitation Sedation Scale
› Target calm and arousable
› Trend after medication
› CIWA Ar
› Alcohol withdrawal severity
› Not validated in delirium or severe agitation
› COWS
› Opioid withdrawal severity
› Guides buprenorphine pathway local protocol dependent
› 4AT
› Delirium screen
› Not a replacement for clinical assessment
› Bush Francis Catatonia Rating Scale
› Catatonia screen
› Lorazepam challenge supports diagnosis
› MRI brain
› Indications
› Suspected encephalitis with non diagnostic CT
› New focal neurologic deficit
› Contraindications
› Non MRI compatible implant
› Unstable airway or hemodynamics
› Protocol notes
› With and without contrast for encephalitis
› Consider diffusion sequences for stroke
› CT head
› Indications
› New focal neurologic deficit
› New severe headache
› Seizure with persistent altered mental status
› Limitations
› Early encephalitis may be normal
› Does not exclude intoxication or withdrawal
› Contrast cautions
› Renal impairment risk
› Allergy history
› Ultrasound
› POCUS applications
› Bladder volume for urinary retention with delirium
› IVC assessment for volume status adjunct
› Limitations
› Not diagnostic for primary psychiatric illness
› Operator dependent findings
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