Studying biological materials and in particular blood is a common procedure prescribed for diagnosis or in the treatment process.
In order to avoid obtaining incorrect results, some rules must be followed before the tests.One of them is the use of tobacco products.
Is it possible to smoke before a blood test is done?
For those who use tobacco constantly, the question of whether it is possible to smoke before a blood donation is very relevant.After all, it happens that a person and a few hours cannot spend without other fluff.
Once in the body through the lungs, nicotine is almost immediately absorbed into the bloodstream, significantly changing its structure.It doesn't matter which cigarettes of cigarettes were used by the smoker.As a result, the analysis will show data that can be interpreted inadvertently by a doctor and can lead to the wrong diagnosis.
This state of affairs is fraught with useless treatment, which means prolonged illness and, in the least case, the development of complications.
Warning!Doctors forbid smoking an hour before the analysis, and in some cases (which the specialist will warn in advance) may have more abstinence.
As for whether it is possible to smoke after a blood donation, then the restrictions are less strict, but they are still.As a person is weakened immediately after the blood fence and the flow of nicotine will increase the load on the body, this can lead to unwanted consequences.Immediately after a blood donation, it is advisable to sit quietly for a few minutes, then eat something, drink and only then remember your cigarettes.
Effect on blood indicators
An explanation why it is impossible to smoke before donating blood is very simple - more special nicotine is able to affect most biomaterial indicators:
- Change the thrombocyte properties;
- Significant increase in cholesterol;
- affect the ratio of hormones;
- Change of hemoglobin indicators;
- increased lymphocyte levels;
- Increase the content of catecholamines and cortisol.
In addition, the sharp radiation of catecholamines leads to spasm and as a result of the difficulty of blood flow.The blood becomes faint, the process of biomaterial fiction is complicated.
Nicotine adversely affects the process of providing internal organs with oxygen.The hunger of oxygen that has arisen as a result leads to a deterioration of good.
Total blood test
Smoking affects a common blood test, resulting in identifying the development of inflammation or infection.As a result of the reaction between hemoglobin and carbon monoxide, a carboxygemoglobin is formed in the high concentration of cigarette smoke.
This substance, unlike the protein, does not transport oxygen to tissues and organs.The hypoxia that occurs provokes excessive production of lymphocytes and their increased content in the blood can be considered as the presence of an inflammatory process in the body.In this way, the results of a common blood test, donated shortly after smoking, will be incorrect.
Warning!The maximum nicotine concentration in the blood is achieved about half an hour after smoking, so before you donate blood from your finger, you should not smoke for at least 1-1.5 hours, but it is better to increase this period.
Biochemical analysis
A biochemical blood test allows you to identify many internal pathologies, including the presence of cancer and disease of the cardiovascular system.That is why it is so important to carefully prepare yourself for the study, monitoring all the rules, including in terms of smoking before a blood donation.
Venous blood is the most information material, thanks to the study that you can get a very complete idea of the condition of the body.But for this, the results of the analysis must match the real state of things.
Not only the redistribution of certain substances occurs in the process of using tobacco products in the blood.Smokers change the metabolism of lipids-carbohydrates, which also affects blood indicators.Therefore, experts expressed the ban before leaving the blood from the vein quite categorically.The abstinence should be several hours.
Sugar
Sugar analysis helps to detect such a serious illness as diabetes.The answer to the question, you can smoke before you give blood for sugar, will also be negative.Scientists have proven that nicotine increases blood glucose.This fact, as well as a change in other indicators, can lead to an incorrect interpretation of the results.
If the patient already has an elevated sugar level, then even a smoked cigarette can significantly make the situation worse.
HIV blood
When you donate blood for HIV infection, it is forbidden to smoke.You should abandon cigarettes 2-3 hours before the procedure.Nicotine and other substances contained in tobacco smoke inhibit the immune system.Therefore, the result of HIV analysis may be inaccurate and may not indicate the patient's real condition.
Hormones studies
The hormonal background is a very important indicator that affects the condition and function of the whole body.Nicotine affects the adrenal glands, leading to increased synthesis of hormones, more special cortisol.In addition, smoking reduces the production of testosterone in women estrogen and prolactin.
Smoking before analysis of hormones can adversely affect the functioning of the thyroid gland.So it is desirable to abandon the cigarette a few hours before the blood jump.
How does the donation affect?
Nicotine causes a change in the blood structure at the cellular level and also affects the plasma.A person who decides to donate blood to help others have a mandatory examination.If the results are satisfactory, you can become a donor.
Because blood, donated, can be used in a wide variety of situations where the problems of life and death are sometimes solved, its quality must be perfect.Therefore, by instructing the future donor, the doctor talks in detail about all available prohibitions and restrictions.Including what time before the procedure, it is necessary to give up alcohol (2-3 days) and cigarettes (at least 1 hour).
In the blood of a keen smoker, nicotine and other harmful substances obtained during the smoking process are constantly present, as one smokes at such a frequency that the blood simply does not have time to clean.Such people cannot be allowed to be donated at the selection stage.
How to prepare a blood test smoker?
Before you donate blood for analysis, you can't just smoke.In order for the results of the study to be absolutely reliable and give a real idea of the patient's healthy status, some rules of preparation must be followed.They are as follows:
- The blood for the study is donated in the morning (from 8.00 to 11.00).This is due to the fact that the indicators vary during the day, and those that are obtained from the morning biomaterial fence are used as average data.
- Blood is recommended to acquire an empty stomach and interruption between the transmission of biomaterial and the last meal can be from 8 to 14 hours.This element is due to the fact that the food that enters the body affects both the bloodstream and the level of hormones.
- From smoking before the analysis, one must also refrain.You can smoke a cigarette at least an hour before a blood donation.But for some studies, the abstinence period is increasing.
- Strong emotional shocks and physical activity should be avoided as they can affect biochemical indicators and hormone levels.
- Be sure to warn your doctor about the medication.Maybe, for analysis, they will have to refuse for a while.
You need to know not only how much blood should not be smoked before the blood, but also for what period to refrain from alcohol.For various studies, doctors call different conditions, but the minimum - one day.
Habit and analysis of urine
Regarding whether it is possible to smoke before urine analysis, the doctors' opinions are converged mainly.Most experts do not recommend using tobacco products before taking URIN.This is due to the fact that the chemicals present in the tobacco affect the composition of the urine and can distort the results obtained during the study.
Disagreements arise at what time it should take after a smoked cigarette to the delivery of biological fluid.The main amount of nicotine and other harmful substances begins to be filtered by the kidneys and precipitates in the urine about 8 hours after entering the body.But tobacco begins its effect on the body almost immediately.
Tobacco ingredients entering the body affect the hormonal background, liver and other internal organs.Therefore, it is advisable not to smoke at least an hour before the analysis, but it is better to refrain from 10-12 hours.
Conclusion
Data resulting from analysis may be incorrect due to a recently smoked cigarette.This will lead to an improper diagnosis and a corresponding improper prescribed treatment.But given that regular smoking has a negative effect on the health and condition of the body, the poor test results can reflect the true picture and indicate the pathologies available.