Alcohol Dependence Flashcards
How to calculate units in a drink
Capacity of drink
How many
% of alcohol
Ml x alcohol%
Alcohol related diagnoses
Harmful use of alcohol - episode or recurrent
-use of substance with physical or mental harm
Alcohol dependence - 2 of 3
- loss of control over use
- alcohol use becomes high priority
- physiological signs - tolerance, withdrawal, drinking to prevent withdrawal
TOLERANCE IS RISK TO PROGRESSING TO WITHDRAWAL
WITHDRAWAL IS A LATE SIGN
How to use AUDIT
0-7 - low risk = no action
8-15 - increased risk = brief advice
16-20 - high risk = consider 2ndary care/alcohol care team referral
20+ - dependence = 2ndary care/alcohol care referral
-assess for physiological dependence
How to give brief advice for alcohol use
Feedback - discuss risks associated with use and listen to response
Responsibility - up to the patient to choose
Advice - ways of changing
Menu - provide patient with options
Empathy - warmth, respect and understanding
Self efficacy - empowerment
Specific withdrawal symptoms you must ask about
Similar to bad hangover
- sweating
- headache
- anxiety
- nausea
Shaking - most people remember when they started shaking
Withdrawal
- seizures
- delirium
Pathophysiology of alcohol withdrawal
Acute alcohol =>
- increased GABA binding => more Cl flow into neuron => relax
- also inhibits NMDA receptor
Chronic alcohol =>
- decreased GABA activity => sudden lack of GABA activity
- increased SNS activity
- increased D activity => hallucinations
Red flags for complicated withdrawal
Presents with/past seizure Presents with/past DT Delayed presentation with unmedicated withdrawal 30units+ a day Multiple withdrawal episodes
Alcohol withdrawal timeline
Seizure - 1st 24hours
DT - 48hrs+
How to plan for medically assisted withdrawal
Build a good rapport with your patient
-come up with strategies to cope with withdrawal symptoms and dependence
Location of withdrawal depends on
Management of alcohol withdrawal
Diazepam or chlordiazepoxide
Use oxazepam or lorazepam in advanced liver disease due to no build up of metabolites
Who needs short acting BZ
Diagnosis, stigmata of cirrhosis - vv high GGT
Limited capacity to synthesise/metabolise - bilirubin, albumin, INR
Portal hypertension - low platelets
Hepatic encephalopathy - delayed response, slurring, flap
Management
Symptom triggered
- use CIWA withdrawal scale 2-4hrs
- Chlordiazepoxide
Fixed dose
-prespecified doses of BZ based on alcohol history or SAD!
Alcohol withdrawal seizures
From BS
Manage with BZ
Diagnosis of delirium tremens
Hx of dependence
Past presentation consistent with withdrawal
Agitated delirium
Mild form - perceptual disturbances to frank hallucainations and delusions
Slow progression
- light sensitivity
- seeing small patterns => insects, animals, people
- auditory hallucinations
Management of delirium tremens
A&E team needed, ITU contact
Side room, 1 on 1, family involvement
-frequent reorientation
High dose BZ + Pabrinex