How to prepare for delivery of a biochemical blood test? How is the preparation for delivery of blood for biochemical analysis of the patient?

Biochemical analysis of blood is an accessible and effective way to determine the existing diseases of the body. The work of all organs and systems can be controlled with the help of it, as in most cases of diseases this type of analysis is shown. Thus, it is possible to clarify the diagnosis, prescribe a further examination, and also make preventive diagnostics. Preparation for blood donation for biochemical analysis should be mandatory.

What are the reasons for the distortion of the result?

Biochemical analysis of blood is a method of diagnosis, allowing to assess the work and condition of all human organs.

Everyone faced this procedure. In order for the analysis to be successful, a person must take blood from the veins on an empty stomach in the morning.

A nurse pulls a hand in the forearm area with a special tourniquet. Then pierces the vein with a needle and collects the blood in test tubes. This process man does not control, but the correct preparation for blood donation for biochemical analysis is of great importance. This is what determines the reliability of the result. Blood also does not curl before the due date.

Standard Preparation

The standard preparation process is simple enough, the main thing is to follow all the recommendations of specialists. You can ask your nurse in advance.

The main condition for conducting an analysis of biochemistry is a hungry stomach in a patient. Do not necessarily stick to time early in the morning. It can be evening, the main thing is that at least 6 hours have passed since the last meal, it's better if 8. Snacking is also undesirable. For snacks you can include tea, coffee, especially sweet. Clean without adding sugar and still water is ideal. You can drink it. If you have to donate blood to sugar, even teeth should be cleaned without the use of a paste, in addition, mouthwash can also contain sweeteners and other substances that will negatively affect the analysis.

Combining with other studies

Before other tests are taken and procedures are performed, it is necessary to donate blood from the vein. Especially if it's an x-ray, ultrasound, MRI, droppers and injections. All these types of examinations and procedures can very distort the result. How to prepare for delivery of a biochemical blood test? This question interests many.

How does food affect the result?

In the evening before the scheduled blood test, it is better not to eat too much. This will overload the gastrointestinal tract. And if you need to identify the disease in the liver, pancreas, gall bladder, it is better and at all to hold the diet for 2-3 days. Especially fatty, fried, salty foods, fast food, sauces will adversely affect the organs and distort the result.

Fats, which a person ate on the eve, can provoke high coagulability. Muddy serum of blood will become unsuitable for research.

Analysis and medications

Any medications stop using beforehand. This applies to vitamins, oral contraceptives, antihistamine, anesthetics, hormones, antibacterial drugs. Only after this, the delivery of a biochemical blood test is possible. Preparing for it is a responsible business.

There are cases when there is no possibility to cancel the medicine, but the attending physician should be aware of this. If it is necessary to conduct a repeated blood test, then it is necessary to do this in the same laboratory. The time of day should be approximately the same. Then the result will be reliable. Here is how the preparation for biochemistry is taking place, blood delivery should follow the rules.

What indicators are included in biochemistry?

When biochemical blood analysis takes into account certain indicators. Decipher the result should only the doctor. Independent decoding is unacceptable. If there is a deviation from the norm of any one indicator, then this does not necessarily indicate a pathology.

The main indicators of blood biochemistry include:

Glucose is the most important source of energy in the body. Carbohydrate compounds are split and digested in the small intestine. Sugar in the blood can talk about diabetes. You can also find out how effective the treatment of this disease. It is important to monitor the level of glucose, because it is responsible for energy in the body.

AST and ALT are enzymes that are synthesized in the liver and are indicators of its performance. There are in the liver cells and in small amounts in the blood. If too many are found, then it can talk about the destruction of the liver cells and that the enzymes are thrown into the blood.

Alkaline phosphatase, which is an enzyme contained in almost all tissues of the body. But most of them are rich in liver and bone tissue.

Cholesterol is a lipid that is involved in the metabolism. Increasing its level increases the likelihood of heart and vascular disease, as it can accumulate on their walls. This is fraught with a narrowing of their lumen and a blockage. So, myocardial infarction can develop.

Cholesterol affects male sex hormones and renews cells.

Bilirubin. There is a general, direct and indirect biochemical blood test. Hemoglobin is split and bilirubin is formed. The liver helps it to be excreted from the body. If bilirubin is detected too much, this may indicate that the liver is not healthy. This enzyme is yellow, with its high content in the body there is jaundice.

Urea, which is formed when amino acids decay. It is excreted from the body by the kidneys and, accordingly, shows their normal or abnormal activity.

Albumin, which is a protein produced in the liver and removed by the kidneys. Shows how healthy these organs are. It is the main and most abundant blood protein. Albumin has a transport function and normalization of blood pressure.

Iron - also carries a transport function, participates in hematopoiesis and metabolic processes. Normal iron in the blood is normal hemoglobin. Depending on what kind of indicator will be investigated, there is also a preparation for blood donation for biochemical analysis. About this further.

What is the norm?

Age and gender affect the indicators, which are the norm. There are certain tables in which this rule is given. But in any case, the doctor must decipher the analysis. In the calculation, as a rule, all the indicators are taken at once.

What is the deviation from the norm?

The delivery of a biochemical blood test is needed to determine the existing diseases.

So, an elevated cholesterol level can talk about a metabolic disorder.

Lowering of blood sugar is possible with hormonal disorders in the blood, the increase speaks more often of diabetes.

If an increase in albumin is found, there may be dehydration. With hereditary genetic factors, it is possible to raise and lower albumin in the blood.

Excess urea indicates that the kidneys are not working well. When urea is lowered, a large amount of ammonia is formed in the body, this happens during poisoning. Also, various liver diseases lead to a decrease in urea.

The release of ALT and AST means that liver cells have died.

To ensure that the results obtained are reliable, careful preparation is required for the delivery of blood for biochemical analysis.

How to prepare for a biochemical blood test?

Preparation for biochemical analysis of blood involves rather serious restrictions in the diet and mode of the day. Consider the main recommendations, depending on which indicators will be investigated.

• When examining blood for urea a couple of days before the test, you should not eat kidneys, liver, fish dishes, meat delicacies, or coffee and tea. It is better not to practice sports on the eve of the analysis.
• If it is necessary to detect the level of cholesterol, it is also important to know how to prepare for biochemistry. The delivery of blood should be no earlier than 12 hours after eating. 14 days before the test, you need to stop taking drugs that lower the level of lipids.
• As already mentioned, when you are testing blood for glucose, you can not eat or drink anything, and even brushing your teeth is not recommended. All medications on the day of admission should be discontinued.

Additional training

There are still some indicators that are often detected in blood biochemistry. This glucose tolerance test (HTT), haptoglobin, alpha-2-macroglobulin, fibrotest. Let's consider each of them in more detail.

• Glucose tolerant test is performed with preliminary results of glucose level. Here, too, need preparation for biochemistry. Delivery of blood will be carried out twice. The sample is taken on an empty stomach and with glucose load 2 hours after it. It is interesting that for several days the usual diet and physical load are preserved.
• Haptoglobin - before the analysis excluded estrogens, sulfasalazine, androgens, tamoxifen, oral contraceptives.
• Alpha-2-macroglobulin - three days before the analysis of this indicator you can not eat meat.
• Fibrotest - for a couple of days, oranges, carrots, ascorbic acid are excluded, as these products can lead to a change in the color of blood serum.

This article considers the preparation of the patient for the delivery of a biochemical blood test.