Delirium Flashcards
what is delirium?
acute deterioration in mental functioning arising over hours or days
why is delirium a medical emergency?
there is increased risk of falls, dementia, dehydration, malnutrition and death
risk factors for delirium
elderly cognitive impairment post-op sensory impairment co-morbidities previous drugs/ alcohol depression polypharmacy
causes of delirium
Mnemonic= DELIRIUM Drugs Electrolyte disturbance Lack of drugs (withdrawal) Infection Reduced sensory input Intracranial (stroke/subdural) Urinary retention/ constipation Metabolic (AKI, low glucose, low thyroid, B12/folate, Ca2+)
presentation of delirium
acute onset fluctuating course throughout the day altered consciousness (hyper/hypo) inattention/ decreased awareness disorganised thinking (psychotic features)
diagnosis of delirium
4-AT
CAM
what does the 4-AT test?
alertness
what score for the 4-AT indicates delirium?
> 4
what screening tool is used after the 4-AT?
TIME bundle to consider triggers and investigations
management of delirium
identify and treat underlying cause assess capacity environment measures sensory input haloperidol PO or IM if severe psychosis
when to not use haloperidol in delirium?
PD/LBD
use lorazepam instead
screening tools used to assess capacity
AWI
POA
environment measures in delirium
minimal patient moves activity food chart fluid chart bowel chart
prevention methods for delirium
medication review
early mobilisation
review bowel and bladder function