Delirium Flashcards
What is delirium?
** medical emergency Syndrome characterized by: 1. Acute onset 2. Fluctuating course 3. Disturbances in: - thought - memory - attention** - behaviour - perception (hallucinations) - orientation - consciousness - speech (disorganized, unclear) ** unidentifiable underlying medical cause
What are the three behavioural subtypes of delirium?
- Hypoactive
- Hyperactive
- Mixed
What is delirium?
** medical emergency Syndrome characterized by: 1. Acute onset 2. Fluctuating course 3. Disturbances in: - thought - memory - attention** - behaviour - perception (hallucinations) - orientation (person, place, time) - consciousness - speech (disorganized, unclear) ** unidentifiable underlying medical cause
What are the characteristics of hypoactive delirium?
- slowed movement
- paucity of speech
- non responsiveness
*more unnoticed .. May lead to death
Development and duration of delirium
- Delirium develops over a short period of time (hours or days)
- Can fluctuate over the course of the day, usually affecting sleep and wake cycle
- can persist over months
Prevalence of delirium
Critically ill older adults have an 80% rate
Long term care 70%
What can you give postoperatively to prevent delirium?
Anitcholinergics
Risk factors for long term care residents to have delirium
Dementia Functional dependency Pain Depression Behavioural disturbances Number of medications Dehydration Malnutrition
Common factors increase risk of delirium
INFECTION: watch for atypical presentation Advanced age Pain Dementia Surgery: general anesthetic Medications psychological disturbances (change to meds) Pathological conditions Impaired functioning Cognitive status alcohol prolonged sleep deprivation Environment: change, admit to ICU
Nursing assessment for delirium
- frequent assessment and monitoring of mental assessment
- CAM
- Past medical history, including any psychiatric history
- Current medications
- Family history
- ***Pre episode cognitive and functional status
- Assess for any significant events (such as
falls, injury, changes in diet, medications,
etc)
Nursing assessment for delirium
- frequent assessment and monitoring of mental assessment
- CAM
- I WATCH DEATH
- Past medical history, including any psychiatric history
- Current medications
- Family history
- ***Pre episode cognitive and functional status
- Assess for any significant events (such as
falls, injury, changes in diet, medications,
etc)
What assessment tool is used for delirium?
The Confusion Assessment Model (CAM)
What is the CAM assessment?
- ACUTE ONSET AND FLUCTUATING COURSE- is there evidence of acute change in mental status from baseline or abnormal behaviour that tends to come and go or increase or decrease
- INATTENTION: does the patient have difficulty focusing or keeping track of what is being said? Are they easily distracted?
- DISORGANIZED THINKING: is the patient’s thinking or conversations coherent, disorganized or illogical? Do they switch topics?
- ALTERED LEVEL OF CONSCIOUSNESS
Nursing interventions for delirium?
- requires multidisciplinary approach **
Some
1. Provision for aids to orientation (clocks, callenders)
2. Aids for sensory function (glasses, hearing aids)
3. Frequent verbal orientation
4. Environment modifications (noise reduction)
5. Identify adverse medications
6. Adequate pain management
7. Social support
What nursing interventions can be done for acute confusion?
- Anxiety reduction
- Behaviour reduction
- Cognitive stimulation
- Delirium management
- Energy management
- Environment management
- Fluid/electrolyte management
- Hallucination management
- Medication management
- Mood management
- Pain management
- Reality orientation **
- Sedation management
- Surveillance: safety
how does the hospital affect delirium?
- best place for delirius patient, solve the issue, or safety issues
1. can develop delirium in hospital
2. surgeries can cause it
3. after hip frac or surgery 40% become delirium
- best place for delirius patient, solve the issue, or safety issues
how do you deal with a delirious patient in hospital?
- find underlying cause
1. private room near nursing desk
2. have news papers, calenders and clocks
3. reorientate
4. introduce yourself
5. be calming and reasuring
6. get rid of distractions
7. helps with ADLs
8. dont argue with their delusions
9. dont use foley caths, because they will pull it out, do in and outs
10. ambulate patient
- find underlying cause
delirium stats
- 4 times more common in old people
- 15% in acute setting
- 20% develop in acute care setting
- 40-60% of residents in lodges will
- previous delirium = 90% chance it will happen again
what can a caregiver do for a delirious person
- safe environment
- make sure hearing aids, or glasses are on them
- promote healthy eating
- encourage safe activity
recommended lab tests
- CBC
- B12
- Folate
- TSH
- FBG
- Bun/Creatinine
- Electrolytes
- Drug Levels
- Ca/PO4
I WATCH DEATH
INFECTION (encephalitis, meningitis, UTI, pneumonia)
WITHDRAWL l (alcohol, barbiturates, benzodiazepines)
ACUTE METABOLIC DISORDER (electrolyte imbalance, hepatic or renal failure)
TRAUMA (head injury, postoperative)
CNS PATHOLOGY (stroke, hemorrhage, tumour, seizure disorder, Parkinson’s)
HYPOXIA (anemia, cardiac failure, pulmonary embolus)
DEFICIENCIES (vitamin B 12 , folic acid, thiamine)
ENDOCHRINOPATHIES (thyroid, glucose, parathyroid, adrenal)
ACUTE VASCULAR (shock, vasculitis, hypertensive encephalopathy)
TOXINS, SUBSTANCE USE, MEDICATIONS (alcohol, anesthetics, anticholinergics, narcotics)
HEAVY METALS (arsenic, lead, mercury)
Related labs for related medical issues.
CBC B12 Folate TSH FBG Bun/Creatinine Electrolytes Drug Levels Ca/PO4
lab tests to diagnose delirium
ESR Cortisol Level LFT Chest X-Ray ECG O2 Saturation CT Scan Urinalysis VDRL
treating deliruim
–> Pharmacological Interventions
Eg. Antipsychotics, Benzodiazepines
–> Non-Pharmacological** first line
- Assess safety
- Address modifiable risk factors- decrease sensory
deficits, address pain, sleep
- Modify the environment- minimize noise, keep
sensory stimulus minimal, provide a familiar
environment, ensure that there is appropriate
level of lighting
- COMMUNICATE, COMMUNICATE, COMMUNICATE!