Alcohol is broken down by the liver at the rate of approximately one unit per hour (a pint of normal strength beer being two units). Consequently, it is possible to still be under the influence the following morning if you have drunk excessively the night before. In fact, every year in Britain over 25,000 people lose their driving licences the morning after a night's drinking. That's more than a quarter of all licenses lost for alcohol abuse.
To exercise caution, the following alcohol calculation can be used to estimate your level of risk after having drunk the night before.
1 Unit of alcohol = Pint ordinary strength beer or... 1 standard glass of table wine or... 1 standard glass of sherry or... 1 single measure of spirits.
It is advised that you allow a minimum of 1 hour per 1 unit of alcohol consumed before driving or operating heavy machinery or electrical equipment in order to ensure that you are not under the influence of alcohol. You will only test positive on urine or blood tests while the alcohol is in your system. This is typically measured in HOURS and not days.
This simple formula will help:
Number of units drunk - Number of hours since last drink = Alcohol content
For example: A person drinks 6 pints of an ordinary strength beer (12 units) finishing drinking at 11pm. They start work at 8am the following day. (9 Hours later).
12 Units - 9 hours = 3. In this scenario, the person could still have 3-4 units of alcohol left in their body whilst driving to work the following day - risking both Police prosecution and the safety of others. 3-4 Units will bring most people to the UK / USA legal driving limit of 80mg/dl. Please exercise caution.
LATEST NEWS: There is now a hair test for a metabolite of alcohol which can last a long time, so urine and blood tests only show alcohol while it is in your bloodstream, but hair can be used to detect heavy alcohol use after the fact.
Visit http://www.drug-aware.com for free drug and alcohol information, testing kits, awareness, policy development and more.
To exercise caution, the following alcohol calculation can be used to estimate your level of risk after having drunk the night before.
1 Unit of alcohol = Pint ordinary strength beer or... 1 standard glass of table wine or... 1 standard glass of sherry or... 1 single measure of spirits.
It is advised that you allow a minimum of 1 hour per 1 unit of alcohol consumed before driving or operating heavy machinery or electrical equipment in order to ensure that you are not under the influence of alcohol. You will only test positive on urine or blood tests while the alcohol is in your system. This is typically measured in HOURS and not days.
This simple formula will help:
Number of units drunk - Number of hours since last drink = Alcohol content
For example: A person drinks 6 pints of an ordinary strength beer (12 units) finishing drinking at 11pm. They start work at 8am the following day. (9 Hours later).
12 Units - 9 hours = 3. In this scenario, the person could still have 3-4 units of alcohol left in their body whilst driving to work the following day - risking both Police prosecution and the safety of others. 3-4 Units will bring most people to the UK / USA legal driving limit of 80mg/dl. Please exercise caution.
LATEST NEWS: There is now a hair test for a metabolite of alcohol which can last a long time, so urine and blood tests only show alcohol while it is in your bloodstream, but hair can be used to detect heavy alcohol use after the fact.
Visit http://www.drug-aware.com for free drug and alcohol information, testing kits, awareness, policy development and more.
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