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 must be followed before the tests.One of them refers to the use of tobacco products.
Is smoking possible before making a blood test?
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 happens that a person and a couple of hours cannot pass without another breath.
Once in the body through the lungs, nicotine is almost immediately absorbed in the blood, significantly changing its structure.In addition, no matter what cigarettes the cigarettes used by the smoker.As a result, the analysis will show data that can be interpreted inadvertently by a doctor and can lead to an incorrect diagnosis.
This state of affairs is full of useless treatment, which means a prolonged disease and, in the worst case, the development of complications.
Attention!Doctors prohibit smoking one hour before analysis, and in some cases (which the specialist will warn in advance), there may be more abstinence.
As for whether it is possible to smoke after blood donation, the restrictions are less strict, but they still are.From immediately after the blood fence, a person weakens and nicotine flow will increase body load, this can lead to undesirable consequences.Immediately after blood donation, it is advisable to sit down 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 can influence most biomaterial indicators, particularly:
- 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 strong 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 starvation of oxygen that arose as a result leads to deterioration in the well.
General Blood Analysis
Smoking affects a general blood analysis, 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, carboxiglobin is formed.
This substance, unlike protein, does not transport oxygen to tissues and organs.The hypoxia that arises causes excessive production of lymphocytes, and its higher blood content can be considered as the presence of an inflammatory process in the body.Therefore, the results of a general blood analysis, donated shortly after smoking, will be incorrect.
Attention!The maximum concentration of nicotine in the blood is achieved approximately half an hour after smoking, so before donating blood of the finger, it should not smoke for at least 1-1.5 hours, but it is better to increase this period.
Biochemical analysis
A biochemical blood analysis allows you to identify many internal pathologies, including the presence of cancer and cardiovascular system diseases.That is why it is so important to prepare carefully for the study, observing all the rules, even with respect to smoking before blood donation.
Venous blood is the most informative material, thanks to the study from which you can obtain a fairly 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 tobacco products in the blood, not only the redistribution of certain substances occurs.Smokers change the metabolism of lipid-carbohydrates, which also affects blood indicators.Therefore, the specialists expressed the prohibition before leaving blood of the vein in a quite categorical way.Abstinence must be several hours.
Sugar analysis
Sugar analysis helps detect a disease as serious as diabetes.The answer to the question can smoke before donating blood for sugar, it will also be negative.Scientists have shown 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 has already increased the sugar level, even a smoked cigarette can significantly worsen the situation.
Blood on HIV
By donating blood for HIV infection, smoking is prohibited.You must leave cigarettes 2-3 hours before the procedure.Nicotine and other substances contained in tobacco smoke inhibit the immune system.Because of this, the result of HIV analysis can be inaccurate and not show the real condition of the patient.
Hormone research
The hormonal background is a very important indicator that affects the condition and performance of the entire body.Nicotine affects the adrenal glands, which leads to a greater synthesis of hormones, in particular cortisol.In addition, smoking man decreases testosterone production and estrogen women and prolactin.
Smoking before analyzing hormones can negatively affect the functioning of the thyroid gland.Therefore, it is desirable to leave the cigarette a few hours before blood jump.
How does donation affect?
Nicotine causes a change in blood structure at the cellular level and also affects plasma.A person who decided to donate blood to help others undergo a mandatory exam.If the results are satisfactory, it can become a donor.
Since donated blood can be used in a wide variety of situations in which life and death problems are sometimes solved, their quality should be perfect.Therefore, when instructing the future donor, the doctor speaks in detail about all the prohibitions and restrictions available.Including it is announced at what time before the procedure it is necessary to reject 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, since a person smokes with such frequently that blood simply does not have time to clean.It is possible that these people are not allowed to donate in the selection stage.
How to prepare a smoker for a blood analysis?
Before donating blood for the analysis, you can not only smoke.In order for the study results to be absolutely reliable and give a real idea of the patient's health status, some preparation rules must be met.Are the following:
- 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 obtained from the morning of the biomaterial are used as average data.
- It is recommended that the blood take an empty stomach, and a break between the surrender of the biomaterial and the last meal can be 8 to 14 hours.This article is due to the fact that the food that enters the body has an effect on both the blood condition and the hormone level.
- Smoking before analysis, one must also refrain.You can smoke a cigarette at least one hour before blood donation.But for some studies, the abstinence period increases.
- Strong emotional shocks and physical activity should be avoided, since they can affect biochemical indicators and hormonal levels.
- Be sure to warn the doctor about drugs taken.Perhaps, for an analysis, they will have to refuse for a while.
He must know, not only for how much blood should not be smoked before blood, but why the period refrain from alcohol.For several studies, doctors call different terms, but the minimum, someday.
Urine habit and analysis
With respect to whether 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.
The disagreements arise on what time they should pass after a smoked cigarette until the delivery of biological fluid.The main amount of nicotine and other harmful substances begins to be filtered by the kidneys and is established in the urine approximately 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 one hour before analysis, but it is better to refrain for 10-12 hours.
Conclusion
The data obtained as a result of the analyzes can be incorrect due to a recently smoked cigarette.This will lead to an incorrect diagnosis and, consequently, an incorrectly prescribed treatment.But since smoking regularly affects the health and state of the body, the results of the poor tests can reflect the real image and indicate the available pathologies.