Alcohol Flashcards
What enzyme breaks down alcohol and where does the majority of this occur?
Alcohol dehydrogenase
Liver
What is the breakdown pathway of alcohol?
Alcohol - Acetaldehyde (alcohol dehydrogenase)
Acetaldehyde - Acetate (aldehyde dehydrogenase)
Acetate - CO2 + H2O
What compound causes hangovers?
Acetaldehyde
What drug is used to reduce alcoholism and how does it work?
Antabuse
Inhibits aldehyde dehydrogenase so prevents breakdown of acetaldehyde (increases symptoms of hangover)
Why do women have a lower alcohol tolerance?
They have less alcohol dehydrogenase
Decreased blood volume to dilute alcohol
What occurs during a mild withdrawal?
12-36 hours:
Sweating, anxiety, fine tremor, nausea, retching, increased HR/BP
What occurs during a moderate withdrawal?
12hrs-5days:
coarse tremor, shaking, agitation, confusion, paranoia, hallucinations
What occurs during a severe withdrawal?
12hrs-7days:
severe agitation, anxiety, confusion, delusions, hallucinations (spiders)
How is alcohol withdrawal pharmacologically managed?
Diazepam
What tool is used to briefly screen for alcoholism and above what value is concerning?
FAST assessment
>3/4 = hazardous drinking
What in depth screening tool is used to assess alcohol dependence?
AUDIT
20+ = possible dependence
How is an AUDIT of 15-19 managed?
Brief intervention - 4 motivational enhancement therapy (MET) sessions
How is an AUDIT of >20 managed?
Possible dependance, may require admission
Pharmacological intervention and psychological support
What is delirium tremens and how might it present?
Medical emergency due to alcohol withdrawal (can be fatal)
Confusion, hallucinations, tachycardia, sweating, tremor, seizures
72-96 hours after last drink
How is delirium tremens treated?
Don’t stop drinking,
Benzodiazepine,
Preferably inpatient detox