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Delirium Mnemonics

DELIRIUM (S)
Differential diagnosis for patients with Delirium
(remember: delirium usually has more than one cause)

D Drugs, Drugs, Drugs
E Eyes, ears 1
L Low 02 states (MI, ARDS, PE, CHF, COPD) 2
I Infection
R Retention (of urine or stool), Restraints
I Ictal
U Underhydration/Undernutrition
M Metabolic
(S) Subdural, Sleep deprivation
1 Poor vision and hearing are considered more risk factors than true
causes, but should be "fixed" or improved if possible. Cerumen is
common cause of hearing impairment.

2
"Low 02 states" does NOT necessarily mean hypoxia, rather it is a
reminder that patients with a hypoxic insult (e.g. Ml, stroke, PE) may
present with mental status changes with or without other typical
symptoms/signs of these diagnoses.

'I WATCH DEATH'
Differential Diagnosis of Delirium

Infection HIV, sepsis, Pneumonia
Withdrawal Alcohol, barbiturate, sedative-hypnotic
Acute metabolic Acidosis, alkalosis, electrolyte disturbance, hepatic failure, renal failure
Trauma Closed-head injury, heat stroke, postoperative, severe burns
CNS pathology Abscess, hemorrhage, hydrocephalus, subdural hematoma, Infection, seizures, stroke, tumors, metastases, vasculitis, Encephalitis, meningitis, syphilis
Hypoxia Anemia, carbon monoxide poisoning, hypotension, Pulmonary or cardiac failure
Deficiencies Vitamin B12, folate, niacin, thiamine
Endocrinopathies Hyper/hypoadrenocorticism, hyper/hypoglycemia, Myxedema, hyperparathyroidism
Acute vascular Hypertensive encephalopathy, stroke, arrhythmia, shock
Toxins or drugs Prescription drugs, illicit drugs, pesticides, solvents
Heavy Metals Lead, manganese, mercury

COCOA PHSS
Differentiating Delirium from Dementia

Delirium Dementia
Consciousness Decreased or hyper alert Alert
"Clouded"
Orientation Disorganized Disoriented
Course Fluctuating Steady slow decline
Onset Acute or sub acute Chronic
Attention Impaired Usually normal
Psychomotor Agitated or lethargic Usually normal
Hallucinations Perceptual disturbances Usually not present
May have hallucinations
Sleep-wake-cycle Abnormal Usually normal
Speech Slow, incoherent Aphasic, anomic difficulty finding words

*Adapted from: Saint Louis University Geriatrics Evaluation Mnemonics Screening Tools (SLU GEMS). Developed or compiled by: Faculty from Saint Louis University Geriatrics Division and St. Louis Veterans Affairs GRECC.

Vanderbilt University Medical Center
Veterans Affairs TN Valley Geriatric Research Education and Clinical Center (GRECC)