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 numerous third-party factors.We will talk about alcohol in particular.The patient is always asked not to drink alcohol before taking the tests in the previous 2 days.
But in reality, does alcohol affect blood tests?Of course, yes, and here's how:
- reduces the number of red blood cells and hemoglobin;
- reduces the volume of urea;
- reduces the level of lactate and glucose;
- increases the level of triacylglycerol.
Ethanol makes the blood viscous and promotes the formation of clots.Exceeding the level of hemoglobin and red blood cells can be mistaken for symptoms of megaloblastic anemia.
Alcohol has the greatest influence on blood tests of the biochemical spectrum.Due to low uric acid, wrong conclusions can be drawn, as it is typical of poor circulation.A high concentration of triacylglycerol is typical for ischemic heart disease, as well as hepatitis of viral etiology.To prevent such mistakes from happening, you should inform your doctor in advance about the alcohol you have taken (if it happens).
In addition to distorting blood parameters, ethanol sometimes damages laboratory equipment.So, when it interacts with reagents, the latter stop reacting to glucose.Enzyme tests will also be false if even a small amount of ethyl alcohol is present in the blood.
How does alcohol affect your bottom line?
The results of blood tests are negatively affected by smoking and some harmful foods, in addition to alcohol.But the last factor is the most significant, which must be ruled out.Tests after alcohol do not make sense, because they are not accurate.
General analysis
How blood parameters are distorted under the influence of ethanol:
- cholesterol level increases;
- red blood cells are destroyed;
- hemoglobin decreases.
If you drink at least a little alcohol before a general blood draw, the number of red blood cells is guaranteed to decrease - these are the red blood cells that contain hemoglobin.They participate 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, as a result, their motor activity is disturbed - they stick together because they stop repelling each other.As a result, their number decreases, and thus the level of hemoglobin.Against this background, thrombosis occurs and microcirculation slows down.
As under the influence of alcohol, the blood thickens and fills with flocculent formations, its flow through the capillaries and through the 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, the only thing that will show is the intoxication of the body with ethanol.
Biochemical analysis
Most of all, ethanol distorts the results of biochemical blood tests, which are designed to give a more detailed clinical picture.With its help, they discover which components are missing and which are too many and need to be reduced.
How alcohol affects tests of this type:
- lowers glucose levels;
- increases uric acid;
- disrupts cellular oxygen supply;
- worsens the general condition of the person.
A low level of glucose in the blood may indicate the development of diabetes mellitus, and an excessive amount of urea is a consequence of the consumption of alcoholic beverages.But the last indicator can be a sign of serious circulatory disorders, as well as hemorrhagic stroke or pathology of the left ventricle.Excess urea is also one of the symptoms of gout or chronic arthritis.That is why it is very important not to drink alcohol before taking the tests.
Failure to follow the rules of preparation before taking blood tests, i.e. the use of any products containing alcohol, often gives incorrect results.There may be an excess of triacylglycerols.These neutral fatty compounds are important for the recognition of many pathologies in the body: ischemia, atherosclerosis, viral hepatitis, blood clots in the vessels of the brain.
Even during laboratory tests, doctors do not use products containing alcohol.Although there is an opinion that with their help it is possible to detect the infection more effectively.But since even a small amount of ethanol significantly distorts the data, this option is excluded.
True, in practice, patients often hide from doctors that they previously drank alcohol.Such behavior implies an unreliable diagnosis, due to which serious pathologies cannot be observed and the moment can be missed.Besides, a hungover person who comes to donate blood will feel bad.possible:
- fainting;
- dizziness;
- migraine;
- nausea and vomiting.
By donating blood in a sober state, a person does not experience any deterioration in his condition, because the losses are insignificant.But after drinking alcohol, metabolic processes and cerebral circulation are disturbed.Then the patient feels a lack of oxygen in the brain, which causes loss of consciousness and dizziness.Even after donating blood, the person will still have headaches for a long time.
In addition, while you are hungover, the olfactory reflexes are especially sensitive to different specific smells.And against the background of indigestion, even the smell of bleach or alcohol in the doctor's office can cause a gag reflex.
Blood draw for sugar
If a metabolic disorder is suspected, a blood sugar analysis is prescribed.The collection is done through a puncture in the finger.And alcohol consumed the day before thickens the blood, which makes it difficult to draw blood.
Ethanol is known to have a detrimental effect on liver function.Even the reagents and laboratory devices used in the work react to it and give inaccurate results.So, when testing blood containing alcohol breakdown products, contradictory indicators are possible: reduced or increased glucose values.
One gram of ethyl alcohol can add up to 6-7 kcal.With the help of liver enzymes, they are converted into sugar.Because of this, its level increases rapidly.But a drop in glucose is also possible.Only a few hours a day, its content is stabilized by carbohydrates from the digestive tract.The rest of the time, the liver actively synthesizes glucose, using strategic reserves.But alcohol inhibits this process, causing glucose levels to drop.
Just 2 days after drinking alcoholic beverages, glucose starts to be produced as before.
This indicator is also evidence of possible diabetes mellitus, but the doctor will think that it is a consequence of the influence of ethanol.As a result, you may waste time by not starting treatment on time.
When is it okay to drink?
Any drinks that contain alcohol, even beer, affect the results of almost all types of tests.It is especially forbidden to drink alcohol before taking the tests prescribed before the operation.In some cases, small doses of alcohol are not prohibited.The doctor tells the patient in advance as much as 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 taking ELISA tests (for HIV, hepatitis and other sexually transmitted infections), you must refrain from alcohol for at least 3 days, in individual cases - up to 7. Otherwise, the accuracy of the results is not guaranteed.If the doctor determines that the patient does not comply with this rule, the procedure is postponed until the moment when the body is completely cleansed of toxins.
Drinking before alcohol testing and ignoring medical recommendations significantly complicates the diagnosis.The risk of getting 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 level of hormones in the blood jumps.They make it difficult to detect viruses.Inaccurate data can mislead the doctor and he will misdiagnose any serious pathology (for example, tumor, hepatitis).
Immediately before testing the driver's blood to determine the degree of intoxication, there are no prohibitions on the use of alcohol.This type of diagnosis is carried out without warning.In all other cases, it is allowed to drink only clean water, and in small quantities.
Therefore, ethanol greatly affects the accuracy of blood test results, and they will differ significantly from normal.It is influenced by the amount of ethanol degradation products, the type of procedure and the accuracy of its implementation.Misdiagnosis leads to misdiagnosis and, consequently, unnecessary or delayed treatment.