For some reason, it is generally accepted that the issue of alcohol content in the human body worries only drivers who find themselves in a difficult situation on the road and trying to prove their innocence. Of course, for those who are driving, this issue is acute. However, if a person undergoes an examination and passes tests, it is also important for him to know how recent libations affect the results, how much alcohol is held in the urine, and how much time must pass after drinking alcohol in order for the analysis to be reliable.
Alcohol in the urine
To understand how alcohol is in the urine, you need to track which path it goes through the body. Absorption of alcohol begins in the stomach as soon as alcohol enters there. Through the gastric mucosa, alcohol enters the bloodstream and with it begins to circulate throughout the body. Through the blood, alcohol enters the kidneys – these are organs of excretion that cleanse the blood of toxins, including alcohol. Already through the kidneys, alcohol enters the urine. It is logical that when alcohol enters the stage of elimination from the body, its concentration in the blood is no longer high, but it is not difficult to detect it in the urine. Moreover, if the alcohol content in the blood is more likely to be predicted, if you know how much and what was drunk, then the alcohol content in the urine is a less predicted parameter.
It affects both the quantity and quality of the drink, and the features of the excretory system (filtration rate, frequency of emptying of the bladder). In any case, alcohol in the urine can be detected even when it is completely removed from the blood. No doctor will be able to say exactly how much time should pass after drinking alcohol, so that even a urinalysis does not reveal the fact of a drink. The stronger the alcohol and the more it is drunk, the more time the body needs to process and remove it from the body. For example, if you drink beer in small doses (up to 1 bottle) – it is completely eliminated from the body after 1-2 hours, and vodka or cognac is removed much longer – up to several days.
Urine alcohol test
A urine test for alcohol, which can be prescribed to drivers, allows you to determine whether a person has been drinking in the past few days. The meaning of this analysis is that the concentration of alcohol in urine is approximately equal to its concentration in blood serum. According to this parameter, we can approximately assume the amount and strength of alcohol consumed.
For this analysis to be reliable, it must be taken within 1 day after drinking. If more time has passed, there may no longer be traces of alcohol in the urine. Moreover, this analysis reveals not only strong alcohol, but also beer. Some test systems are capable of detecting traces of urination in the urine for a week, but such tests are very expensive and are not used in general practice.
Sometimes people try to cheat and speed up the elimination of alcohol from urine by using diuretics. These drugs really help to eliminate toxins faster, but do not completely remove traces of alcohol. And besides, they create an additional burden on the kidneys, which already work at the limit of their capabilities due to the need to remove alcohol. Before drinking diuretics, you need to evaluate all the risks to your health.
The effect of alcohol on urinalysis
However, even if there is no question of revealing the fact of drinking, alcohol still affects the analysis of urine. If a person is preparing to pass urine for analysis, he is better off not drinking for 1-2 days. If you drink before passing the analysis – it will be unreliable. The fact is that alcohol creates a big burden on the kidneys. To filter out all the toxic substances that enter the body along with alcohol, the kidneys work in an enhanced mode and remove a lot of fluid. As a result of this, urine becomes more concentrated, and all its indicators become very high. It turns out that if you drink on the eve of the tests, then there is practically no chance of getting reliable results about your health.
Beer is not perceived by many as an alcoholic drink, so some consider it acceptable to drink it before analysis. In fact, beer affects the body in the same way as any other alcohol. It is also able to change the urine analysis. To avoid this, beer will also have to be excluded 1-2 days before analysis.
The alcohol content in urine is a parameter that cannot be calculated with high accuracy. Different organisms require a different amount of time to process and remove alcohol. In order for the analysis to be reliable, it is best not to drink alcohol at least 2-3 days before it. Moreover, it is necessary to exclude not only strong alcohol, but also beer. If you have a test directly for the alcohol content in the urine – keep in mind that alcohol can be contained there much longer in time than in the blood. Even if there are no signs of intoxication or a hangover, analysis may show that all this has recently taken place.