substance dependence Flashcards
(56 cards)
what is the definition of substance dependence
a cluster of cognitive behavioral and physiological phenomena that develop after repeated substance use.
what is 1 unit of alcohol
10ml of pure alcohol
or
1l of 1% alcohol
what is the nhs guidance on the amount of units a week
no more than 14
what is 14 units in glasses of wine
7 standard glasses of wine
when is the best time to identify alcohol misuse
drug history
what are the mild symptoms of alcohol withdrawal
anxiety
nausea
tremor
tachycardia / palpitations
insomnia
sweating
what are the severe symptoms of alcohol withdrawal
delerium
depressions
fever / hypothermia
seizures
hyper/hypotension
what is the timeframe in which a patient that hasn’t had alcohol may experience severe symptoms
12-18 hours
What symptom of alcohol withdrawal is considered a medical emergency
delirium
what is delirium characterized by
agitation
confusion
fear
paranoia
disturbed sleep
What is the first line for delirium
benzodiazepine oral
what else can we give for delirium
IV benzo
Iv haloperidol
Iv pabrinex
Iv fluids
what is wernicke’s encephalopathy
due to thiamine deficiency which is caused by the abuse of alcohol.
what are the symptoms of wernicke’s encephalopathy
severe cognitive impairment
delirium
ataxia
what syndrome can occur if wernicke’s encephalopathy is not treated
korsakoffs (memory disorder)
how do we treat wernickes encephalopathy
oral thiamine
iv pabrinex if patient has altered mental status
what is pabrinex
vit b and ascorbic acid and comes in two vials
what is chlordiazepoxide used for
drug assisted detox of alcohol
how is the starting dose of chlordiazepoxide determined
CIWA score - starting dose estimated from current level of alcohol consumption
what are the two dosing regiments for chlordiazepoxide
fixed - they only get it at certain times
variable - they get it whenever but is only used in specialist settings.
what is acamprosate
NMDA antagonist
what is acamprosate used for
prevents relapse once abstinence happens
how long should acamprosate be used for
6 months - 1 year
what are the contraindications of acamprosate
pregnancy
breastfeeding
creatinine > 120mcmol/l