The study of biological materials and in particular blood is a common procedure prescribed for diagnosis or in the treatment process.
To avoid obtaining incorrect results, some rules should be followed before testing.One of them concerns the use of tobacco products.
Is it possible to smoke before blood tests?
For those who use tobacco products continuously, the question of whether it is possible to smoke before blood donation is very relevant.After all, it turns out that a person and a few hours cannot spend without another breath.
Once in the body through the lungs, nicotine is almost immediately absorbed by the blood, significantly changing its structure.Also, no matter which cigarettes were used by the smoker.As a result, the analysis will show data that can be inadvertently interpreted by a doctor and may lead to a wrong diagnosis.
This state of affairs is full of useless treatment, which means a prolonged disease and, at worst, developing complications.
Attention!Doctors prohibit smoking an hour before the analysis and, in some cases (which the expert will warn in advance), there may be more abstinence.
As for if it is possible to smoke after blood donation, the restrictions are less strict, but they are still.As immediately after blood, a person is weakened and nicotine flow will increase the load in the body, this can lead to undesirable consequences.Immediately after blood donation, it is advisable to sit calmly for several minutes, then eat something, drink and only after that remember the cigarettes.
Effect on blood indicators
An explanation of why it is impossible to smoke before donating blood is very simple - nicotine is able to influence most biomaterial indicators, in particular:
- change platelet properties;
- significantly increase cholesterol;
- influence the proportion of hormones;
- Change hemoglobin indicators;
- Increase the level of lymphocytes;
- Increase the content of catecholamines and cortisol.
In addition, a marked emission of catecholamines leads to spasm and as a result of the difficulty of blood flow.Blood becomes thicker, the biomaterial fiction process is complicated.
Nicotine negatively affects the process of providing internal organs with oxygen.The hunger of oxygen that emerged as a result leads to a deterioration in the good -to -be.
General blood test
Smoking affects a general blood test as a result of which it is possible to identify the development of inflammation or infection.As a result of the reaction between hemoglobin and carbon monoxide, in the high concentration of cigarette smoke, carxingumoglobin is formed.
This substance, unlike protein, does not carry oxygen to tissues and organs.The arising hypoxia causes excessive production of lymphocytes, and their increase in blood content can be considered as the presence of an inflammatory process in the body.Thus, the results of a general blood test, donated shortly after the smoke, will be incorrect.
Attention!The maximum concentration of blood nicotine is reached about half an hour after smoke;Therefore, before donating finger blood, you should not smoke for at least 1-5 hours, but it is better to increase this period.
Biochemical analysis
A biochemical blood test allows us to identify many internal pathologies, including the presence of cancer and cardiovascular system diseases.This is why it is so important to prepare carefully for the study, observing all rules, including smoking before blood donation.
Venous blood is the most informative material, thanks to the study of which you can have a very complete idea of the state of the body.But for this, the results of the analysis must correspond to the real state of things.
In the process of using blood tobacco products, not just the redistribution of certain substances occurs.Smokers alter lipid-carbohydrate metabolism, which also affects blood indicators.Therefore, experts expressed the ban before leaving the vein's blood categorically.Abstinence should be several hours.
Sugar analysis
Sugar analysis helps detect such a severe disease as diabetes.The answer to the question, you can smoke before donating blood to sugar, will also be negative.Scientists have proved that nicotine increases blood glucose.This fact, as well as a change in other indicators, can cause an incorrect interpretation of the results.
If the patient already has an increased sugar level, even a smoked cigarette can significantly worsen the situation.
Blood in HIV
When donating blood to HIV infection, smoking is prohibited.You need to abandon cigarettes 2-3 hours before the procedure.Nicotine and other substances contained in tobacco smoke inhibit the immune system.For this reason, the result of HIV analysis may be inaccurate and not display the patient's actual condition.
Hormone research
The hormonal background is a very important indicator that affects the condition and performance of the whole body.Nicotine affects the adrenal glands, which leads to increased hormone synthesis, in particular cortisol.In addition, the smoke man decreases the production of testosterone and in women estrogen and prolactin.
Smoking before analyzing hormones can negatively affect the functioning of the thyroid gland.Therefore, it is desirable to abandon the cigarette a few hours before the blood jump.
How does the donation affect?
Nicotine causes a change in blood level structure at the cellular level and also affects plasma.A person who has decided to donate blood to help others undergo a mandatory exam.If the results are satisfactory, you can become a donor.
Since donated blood can be used in a wide variety of situations where life and death issues are sometimes resolved, their quality must be perfect.Therefore, by instructing the future donor, the doctor speaks of detail about all available prohibitions and restrictions.Including it is announced what time before the procedure it is necessary to refuse alcohol (2-3 days) and cigarettes (at least 1 hour).
In the blood of an avid smoker, nicotine and other harmful substances received in the smoking process are constantly present, as a person smokes often that blood simply has no time to clean.These people may not be allowed to be donated in the selection phase.
How to prepare a smoker for a blood test?
Before donating blood for analysis, you may not only smoke.For the study results to be absolutely reliable and give a real idea of the patient's health, some preparation rules must be met.They are as follows:
- The blood for the study is donated in the morning (from 8h00 to 11h00).This is due to the fact that the indicators vary during the day and those obtained from around the morning of biomaterials are used as average data.
- It is recommended that the blood assume an empty stomach and a break between biomaterial surrender and the last meal can be 8 to 14 hours.This item is due to the fact that the food that enters the body affects the blood condition and the level of hormones.
- Smoking before the analysis should also be abstained.You can smoke a cigarette at least an hour before blood donation.But for some studies, the period of abstinence increases.
- Strong emotional shocks and physical activity should be avoided as they may affect biochemical indicators and hormone levels.
- Be sure to warn the doctor about the drugs taken.Perhaps, for an analysis, they have to refuse for a while.
You must know, not just how much blood should be smoked before blood, but why alcohol abstain.For several studies, doctors call different terms, but the minimum - one day.
Habit and Urine Analysis
Regarding if it is possible to smoke before urine analysis, doctors' opinions converge mainly.Most experts do not recommend using tobacco products before taking Urin.This is due to the fact that the chemicals present in tobacco affect the composition of the urine and can distort the results obtained during the study.
Divergences appear on what time should pass after a smoked cigarette until biological fluid delivery.The main amount of nicotine and other harmful substances begins to be filtered by the kidneys and is established 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 to 12 hours.
Conclusion
Data obtained as a result of analysis may be incorrect due to a recently smoked cigarette.This will lead to an incorrect diagnosis and therefore incorrectly prescribed treatment.But since regular smoking negatively affects the health and condition of the body, the bad test results may reflect the actual image and indicate the available pathologies.