Taking tests is not exactly a pleasant procedure. It is unlikely that there is a person who likes this action very much. Especially since it is accompanied by several prohibitions and inconveniences (early rise, refusal of the usual breakfast, huge queues at the laboratory, and not always pleasant communication with the medical staff). So when the doctor suddenly prescribes us a referral for tests, we instantly worsen our mood and there is a whole string of problems. Even using the services of private laboratories with excellent service, no one will be happy.
But without tests for proper diagnosis and determination of the disease still can not do. And even more so, successful treatment largely depends on the results of laboratory tests. The more complex the disease, the more important it is to undergo a full examination.
Can I drink beer before a urine test?

The results of the study will be distorted by taking any alcoholic product, regardless of the amount drunk, type, and concentration. The opinion of individuals that a few glasses of beer will not do any harm and will not affect the results of the test is extremely erroneous. Beer, like other alcoholic beverages, directly affects the concentration of urine. The results will be completely unreliable.
Therefore, two or three days before the laboratory tests you need to give up taking alcohol in any form, including beer.
How long does beer stay in the urine?

This fact depends on what you drink. When intoxication passes, ethanol may not be in the blood, but it may be in the urine. Therefore, it is necessary to take a urine test. Decomposition begins after 5 hours before which a variety of chemical reactions take place in the body.
The drunken sensation in a person remains until the alcohol has fully passed decomposition. After that comes the hangover. This is why the results of the test will be completely different.
Size, ml (oz) | Time half-life, hours | Human weight, kg (lbs) |
100 (3.5); 350 (12) | 1; 2.30 | 60 (132) |
100 (3.5); 350 (12) | 0.45; 2.15 | 70 (154) |
100 (3.5); 350 (12) | 0.4; 2.0 | 80 (176) |
100 (3.5); 350 (12) | 0.35; 1.45 | 90 (198) |
100 (3.5); 350 (12) | 0.30; 1.30 | 100 (220) |
This means that after drinking 1 beer, alcohol will stay in the urine from 1.30 to 2.30 hours, depending on the weight of the person. The heavier the weight, the faster the alcohol is excreted.
Will 1 Beer Show Up In A Urine Test?

After drinking an alcoholic beverage, the narcotic substance of the fatty row – ethanol (monatomic ethyl alcohol) is retained in the body for a certain time, entering the body’s body fluids and organs. First, it is absorbed into the blood through microscopic vessels in the oral cavity, and then, about 2 hours after the intake, penetrates into the urine, where it remains much longer than in the blood (about 48 hours, in chronic alcoholics – up to 130 hours). Because of this, there is an opportunity to accurately determine whether the patient took alcoholic beverages, not only on the day of the survey but several days before it. That’s why the urine alcohol test is more informative than the blood test.
Three things affect the rate at which alcohol is eliminated from the body: blood composition, a person’s weight, and the intake of food before drinking alcohol. If a person has eaten well, the alcohol will be determined later, and absorption will slow down.
The Verdict
Laboratory diagnostics are performed for a reason, to confirm or refute a specific diagnosis, and to evaluate the work of internal organs. Drinking on the eve of a medical examination often leads to false results. In turn, the erroneous analysis may cause the selection of ineffective treatment, which is dangerous.
Therefore, if you are going to be tested for urine and blood, you need to lead a healthy lifestyle for two or three days. It is important not only not to drink anything alcoholic, but also to eat right, giving up fatty, spicy, smoked, and sweet things.