Calculation of alcohol levels: formula, how many glasses, elimination
What is the formula to calculate your blood alcohol level?
To calculate the blood alcohol level, that is to say the alcohol level present in the blood, there is a formula that varies according to the sex and the weight of the individual."Women are generally more sensitive than men in the face of the absorption of alcoholic beverages," comments Dr. Patrick Aubé.
► For a man, the formula is as follows: (v × t × 0.8) ÷ (0.7 × m)
► For a woman, the formula is significantly the same: (v × t × 0.8) ÷ (0.6 × m)
Take the example of a 60 g woman who drank a cup of champagne from 10 cl to 12 degrees: (100 × 0.12 × 0.8) ÷ (0.6 × 60) = 9.6 ÷ 36 ≈ 0.26son blood alcohol levels therefore amounts to 0.26g/l of blood.It can therefore take the steering wheel since it is below 0.5g/l of blood."However, the average speed of elimination of alcohol depends on other factors: type of consumption, operation of the liver, concomitant medication taking ...", nuance the general practitioner. |
How many glasses are allowed to drive?
In France, the law prohibits driving with an alcohol level in the blood greater than or equal to 0.5 g/l of blood (0.2g/l in the event of probationary permit).In other words, you should not consume more than two glasses when you want to take the wheel."We must also take into account the drugs that reduce vigilance and with which alcohol consumption is very strongly discouraged, resulting in an increased risk of drowsiness and a decrease in reflexes that can make driving very dangerous.These drugs rank in families of hypnotics, anxiolytics, antidepressants, antihistamines (allergy treatment) ", wishes to clarify Dr. Patrick Aubé.
What is the speed of elimination of alcohol?
The alcohol peak is reached 15 minutes after the last drink when you are on an empty stomach, and 1 hour later when the last drink is consumed during a meal.Then, the body is slowly starting to eliminate alcohol, at the rate of 0.10g to 0.15g of alcohol per liter of blood in an hour.On average, one to two hours are necessary to eliminate a single glass of alcohol.
How to lower your blood alcohol level quickly?
Exercise, eat, drink water, swallow coffee, have a aspirin cachet...Unlike many received ideas, there is no miracle remedy to lower your blood alcohol levels quickly."If it is true that certain molecules are being studied to allow an acceleration of the speed of elimination of absorbed alcohol, in waiting, there is only one thing that works:patience while waiting for the body to eliminate alcohol, "said our interlocutor.
Are there applications to calculate your blood alcohol level?
There are different applications to know its alcohol level in real time.Let us cite in particular "Alcohol rate", "Alcootel maaf", "Bactrack" available on iOS and Android, or even "AlcoDroid" (Googleplay).The manufacturers of these applications, however, specify that these tools only give an estimate of the blood alcohol level, without legal value.In no case can applications determine whether a person is able to drive or not.
When to hit the road after drinking?
"It is always preferable not to drive after the absorption of alcohol, all individuals not being equal vis-à-vis the effect of alcohol on their behavior to driving, it is necessary to let pass to theLess two hours before taking the wheel after a very moderate intake of alcoholic beverages, "recommends Dr. Patrick Aubé.
Thank you to Dr Patrick Aubé, general practitioner
Source: Road safety site
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