The absorption and elimination of alcohol What is alcohol What is alcohol How is it absorbed How is it absorbed How is it eliminated How is it eliminated.

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Presentation transcript:

The absorption and elimination of alcohol What is alcohol What is alcohol How is it absorbed How is it absorbed How is it eliminated How is it eliminated What is a unit of alcohol What is a unit of alcohol How can a unit be calculated How can a unit be calculated A unit the drink drive law and you A unit the drink drive law and you

What is alcohol Alcohol is Ethanol Alcohol is Ethanol Naturally occurs in fermentation Naturally occurs in fermentation Added artificially ( Alco-pops) Added artificially ( Alco-pops) It is a drug It is a drug It is a poison It is a poison

How is alcohol absorbed Swallowed Swallowed Goes through stomach & intestine wall Goes through stomach & intestine wall Into blood and pumped by heart Into blood and pumped by heart To the brain To the brain All within 5 minutes All within 5 minutes

How eliminated Breath Breath Sweat Sweat Urine Urine Liver Liver 2% - 4% 2% - 6% 2% - 4% 90% approx.

What is ABV Alcohol by volume 14% ABV Means 14% of content is alcohol

What is a unit For calculation purposes a unit of alcohol is the average amount of alcohol a healthy body can eliminate in 1 hour For calculation purposes a unit of alcohol is the average amount of alcohol a healthy body can eliminate in 1 hour

What equals a unit Half pint of 3.5% abv beer 125ml glass of 9% abv wine 25ml glass of 40% abv spirit

How to calculate units Volume x ABV divided by 1000 Example 330ml bottle of 5% abv beer. 330x5 = 1650/1000 = 1.65 units. For safety always round up = 2 units

The Law Breath Breath Blood Blood Urine Urine 35ug (microgrammes) 80mg (milligrams) 107mg (milligrams)

The Reality Driving at the British legal limit can make a driver up to 5 times likelier to crash Driving at the British legal limit can make a driver up to 5 times likelier to crash Even small amounts of alcohol can double the risk of crashing Even small amounts of alcohol can double the risk of crashing The legal limit is not necessarily the safe limit The legal limit is not necessarily the safe limit Highest limit in Europe Highest limit in Europe

The Effects 1 unit of alcohol = 7ug of breath (Maybe!) HOWEVER Gender Gender Size Size Fitness Fitness Medication Medication Mood Food Topping up

The effect If 7ug breath = unit If 7ug breath = unit Large Adult Male Large Adult Male Small Adult Female Small Adult Female 5 units = 35ug limit 5 units = 65/80 blood 5 units = 112/80 blood

The morning after Friday night drinks from 9pm to Midnight Friday night drinks from 9pm to Midnight Drinks 5 pints of 4.2% abv Lager and 2 double Jack Daniels Drinks 5 pints of 4.2% abv Lager and 2 double Jack Daniels In bed by In bed by 12.30

The morning after When would you be happy for this pupil to drive your car? When would you be happy for this pupil to drive your car?

The morning after Lager = 12.5 units Lager = 12.5 units Jack Daniels = 4 units Jack Daniels = 4 units 16.5 units = 16.5 hours approx. to leave body 16.5 units = 16.5 hours approx. to leave body Alcohol free 1.30pm next day Alcohol free 1.30pm next day

Warning There are no hard and fast rules for calculating alcohol elimination There are no hard and fast rules for calculating alcohol elimination Drink driving offences stay on your licence for 11 years (10 years for re-offending) Drink driving offences stay on your licence for 11 years (10 years for re-offending) Banned for at least 1 year first offence Banned for at least 1 year first offence On the CRB register and PNC number for 5 years (in most cases) On the CRB register and PNC number for 5 years (in most cases)