The list of diagnostic tests must include a blood test.In order to obtain the most accurate results, it is necessary to exclude the influence of a number of third-party factors.In particular, we will talk about alcohol.The patient is always asked not to drink alcohol in the last 2 days before testing.
But does alcohol actually affect blood tests?Of course yes, and this is how it works:
- reduces the number of red blood cells and hemoglobin;
- reduces urea volume;
- lowers lactate and glucose levels;
- increases triacylglycerol levels.
Ethanol makes the blood viscous and promotes the formation of blood clots.Excessive hemoglobin and red blood cell levels can be confused with symptoms of megaloblastic anemia.
Alcohol has the greatest impact on blood tests of the biochemical spectrum.Wrong conclusions can be drawn due to a low uric acid level, as this is typical of poor blood circulation.A high concentration of triacylglycerols is typical for ischemic heart disease and hepatitis of viral origin.To prevent such mistakes from happening, you should tell your doctor in advance about the alcohol you are taking (if this happens).
Aside from distorting blood parameters itself, ethanol sometimes also damages laboratory equipment.So when it interacts with reagents, they no longer react with glucose.Enzyme tests are also incorrect if there is even a small amount of ethyl alcohol in the blood.
How does alcohol affect your bottom line?
In addition to alcohol, the results of blood tests are negatively affected by smoking and some harmful foods.However, the last factor is the most important and must be excluded.Tests for alcohol are not useful because they are not accurate.
General analysis
How blood parameters are distorted under the influence of ethanol:
- cholesterol levels rise;
- red blood cells are destroyed;
- Hemoglobin decreases.
If you drink at least a little alcohol before a general blood test, the number of red blood cells is guaranteed to decrease - these are red blood cells that contain hemoglobin.They are involved in the circulation of oxygen to all internal organs and tissues and then back to the lungs.
And ethanol has a destructive effect on the membrane of red blood cells, disrupting their motor activity - they stick together because they no longer repel each other.As a result, their number decreases and, as a result, the level of hemoglobin decreases.Against this background, thrombosis occurs and microcirculation slows down.
As blood thickens under the influence of alcohol and fills with flaky formations, its flow through the capillaries and through vascular gaps is hindered.This not only prevents accurate research, but also endangers human health.If alcohol was consumed less than 10-12 hours before the tests, this only shows poisoning of the body with ethanol.
Biochemical analysis
Above all, ethanol distorts the results of biochemical blood tests, which are intended to provide a more detailed picture of the disease.With its help, they find out which components are missing and which are too much and need to be reduced.
What influence does alcohol have on tests of this type:
- lowers glucose levels;
- increases uric acid;
- disrupts cellular oxygen supply;
- worsens the general condition of a person.
Low blood sugar levels may indicate the development of diabetes mellitus, and excessive urea levels are a consequence of consuming alcoholic beverages.However, the latter indicator can be a sign of severe circulatory disorders, as well as hemorrhagic stroke or pathology of the left ventricle.An excess of urea is also one of the symptoms of gout or chronic arthritis.This is why it is so important not to drink alcohol before testing.
Failure to follow the preparatory rules before conducting blood tests, especially the use of products containing alcohol, often leads to inaccurate results.There may be an excess of triacylglycerols.These neutral fatty compounds are important for identifying many pathologies in the body: ischemia, atherosclerosis, viral hepatitis, blood clots in the vessels of the brain.
Doctors also avoid alcohol-containing products during laboratory tests.Although there is an opinion that with their help infection can be detected more effectively.However, since even a small amount of ethanol significantly distorts the data, this option is ruled out.
In practice, patients often hide from doctors that they have previously drunk alcohol.Such behavior leads to unreliable diagnosis, which can lead to failure to detect serious pathologies and miss the right moment.In addition, a male cat who comes to donate blood will feel unwell.Possible:
- fainting;
- Dizziness;
- Migraine;
- Nausea and vomiting.
By donating blood in a fasting state, a person does not experience a deterioration in his condition, since the losses are insignificant.But after drinking alcohol, metabolic processes and cerebral circulation are disrupted.Then the patient feels a lack of oxygen in the brain, which leads to unconsciousness and dizziness.Even after donating blood, people will continue to suffer from headaches for a long time.
In addition, the olfactory reflexes of a hangover are particularly sensitive to various specific smells.And against the background of indigestion, even the smell of bleach or alcohol in the doctor's office can trigger a gag reflex.
Taking blood for sugar
If metabolic disorders are suspected, a blood sugar test is prescribed.The removal is done through a puncture in the finger.And alcohol consumed the day before thickens the blood and makes it difficult to take blood.
Ethanol is known to impair liver function.The reagents and laboratory equipment used in the work also react to this and give incorrect results.So, when examining blood containing alcohol breakdown products, contradictory indicators are possible: reduced or increased glucose levels.
One gram of ethyl alcohol can give up to 6-7 kcal.With the help of liver enzymes they are converted into sugar.That's why its level rises sharply.But a drop in glucose is also possible.Its contents are stabilized by carbohydrates from the digestive tract just a few hours a day.The rest of the time, the liver actively synthesizes glucose, using strategic reserves.But alcohol hinders this process and causes glucose levels to drop.
Only 2 days after drinking alcoholic beverages does glucose production begin as before.
This indicator is also an indication of possible diabetes mellitus, but the doctor will assume that this is a consequence of the influence of ethanol.As a result, you may waste time by not starting treatment on time.
When is it OK to drink?
All alcoholic beverages, including beer, affect the results of almost all types of tests.In particular, it is forbidden to drink alcohol before examinations that are prescribed before an operation.In some cases, small amounts of alcohol are not prohibited.The doctor tells the patient in advance how much is possible.
In general, it is forbidden to drink strong drinks 1.5-2 days before taking blood from a vein.This time is enough to stop all processes that have a significant impact on the body.
When conducting ELISA tests (for HIV, hepatitis and other sexually transmitted infections), you must avoid alcohol for at least 3 days, in individual cases up to 7 days.Otherwise the accuracy of the results cannot be guaranteed.If the doctor finds that the patient does not follow this rule, the procedure is postponed until the body is completely cleansed of toxins.
Drinking before taking a breathalyzer test and ignoring medical recommendations make diagnosis much more difficult.The risk of obtaining false results increases.In addition to products containing alcohol, you should exclude fatty foods from your diet, smoke less and be nervous.Under their influence, the hormone level in the blood rises sharply.They make it more difficult to detect viruses.Incorrect data can mislead the doctor and he will incorrectly diagnose a serious pathology (e.g. tumor, hepatitis).
There are no prohibitions regarding the consumption of alcohol immediately before the blood test of drivers to determine the degree of intoxication.Such a diagnosis is carried out without warning.In all other cases, you can only drink clean water, and in small quantities.
Therefore, ethanol has a great impact on the accuracy of blood test results and they differ significantly from normal results.This is influenced by the amount of ethanol degradation products, the type of process and the accuracy of its implementation.A misdiagnosis leads to an incorrect diagnosis and therefore unnecessary or delayed treatment.