How much is a general blood test done - timing, features and decoding

In the article, we will consider how much a general blood test is done.

In order to reliably determine how long it will take to conduct a particular laboratory study of biological material, it is necessary to have an idea of ​​what is being studied in the composition of blood or urine. At the same time, the direction of the study is very important - whether only general indicators are needed or whether the analysis will be detailed, with a detailed study of all indicators.

Patients often ask how much time a complete blood count is done. Let's take a closer look.

General characteristics of the analysis

A complete blood count is the main and most common laboratory diagnostic technique. In a civilized modern society, there is probably not a single person who would not donate blood for this study, since it is carried out not only for sick people, but also completely healthy, with a routine physical examination in educational institutions, at work, while serving in the army.

Such an analysis includes the determination of hemoglobin concentration, the level of leukocytes and the calculation of the leukocyte formula, the determination of the number of platelets, red blood cells, erythrocyte sedimentation rate and other indicators.

Thanks to the decoding of the results of this blood test, it seems possible to establish the causes of certain pathological symptoms, determine the type of diseases of the internal organs or blood, and select the correct therapeutic regimen.

But not everyone knows how much a complete blood count is done.

The timing

As for the timing, they vary depending on which laboratory the study is carried out (level of workload), the technical equipment of the laboratory room, and also where the blood comes from - from a vein or from a finger.

So how many days is a complete blood count done?

Most clinics equipped with modern medical equipment carry out examinations and give the result of a general blood test already during the day, and in certain cases, the result of the analysis can be obtained in your hands after 1–2 hours. However, in most government clinics the same studies can be carried out within 5 days. This means that the duration of a general blood test directly depends on the choice of a diagnostic laboratory. At the same time, certain boundaries of the shelf life of such studies are indicated. However, some variations may also occur when the analysis period can be extended or shortened. As a rule, medical institutions inform their patients that a blood test is ready, and you can get information from a doctor about the expiration dates.

And how much is a general blood test from a vein?

Vein blood

If blood is taken from a vein, then such an analysis will be carried out a little longer than the one at which blood was taken from the finger. This is due to the fact that venous blood has a more saturated structure and is subject to deeper investigation. Blood from a finger can only talk about acute conditions of the body and, for example, in case of emergency hospitalization of a patient in a hospital, the duration of such an analysis will be minimal - from 20 to 40 minutes.

How much a general blood test is done can be clarified in the clinic.

The level of hematocrit and hemoglobin, the erythrocyte sedimentation time, which was previously called the ROE - reaction, is determined. The color index is calculated according to a certain formula, if the study is carried out manually, without using laboratory equipment. The concentration of cellular blood elements is also determined: red blood cells (red blood cells), which contain the hemoglobin pigment, which determines the oxygen saturation of the blood, and white blood cells that do not contain this pigment, which is why they are called white blood cells (monocytes, basophils, eosinophils, neutrophils, lymphocytes )

It should be noted that a general analysis shows the response of biological fluid to various processes that occur in the human body.

Analysis Rules

If we talk about the rules for passing this analysis, then there are no strict and complex requirements for this, but there are certain limitations:

1. The analysis is carried out in the morning. Before this, it is forbidden to eat food, drinks a few hours before taking a sample of the biomaterial.
2. The main medical instruments that are used in the implementation of this laboratory test are cotton wool, scarifier and alcohol.
3. For examination, capillary blood is used, which is taken from the finger. In some cases, according to the instructions of a specialist, venous blood can be taken.
4. Then, the analysis is decrypted. There are also special hematological analyzers, with which it is possible to determine up to 24 blood parameters automatically. Such devices display a printout with a transcript of the study almost immediately after taking the blood.
   

Norms of indicators

In different laboratories, these values ​​may vary slightly, however, the following standards for blood values ​​are considered generally accepted:

• hemoglobin: in women - 120-140 g / l, in men - 130-160 g / l;
• hematocrit: in women - 34.2-46.7%, in men - 34.3-46.9%;
• platelets - 180-361 × 10 ⁹ ;
• erythrocytes - 3.7-4.7 × 10 ¹² ;
• white blood cells - 4-9 × 10 ⁹ ;
• color indicator - 0.85-1.15;
• ESR - in women - 2-15 mm / h, in men - 1-10 mm / h;
• reticulocytes - 0.2-1.3%;
• eosinophils 0-6%;
• thrombocrit 0.1-0.6%;
• basophils - 0-1%;
• monocytes - 2-8%;
• lymphocytes - 17-40%;
• erythrocyte volume - 78-94 fl;
• neutrophils - 1-7%;
• neutrophils - 46-73%.

Each of these values ​​plays a role in deciphering a blood test, however, the most reliable result is not only the ratio of the obtained indicators to the normal options - quantitative characteristics are considered together, taking into account the relationship between different blood properties.

Biochemical analysis

Many are interested in how much a general and biochemical blood test is done.

A study on biochemistry is used in clinical medicine to identify data on the functional state of organs. Its results with high accuracy help to identify various failures and violations. Correct decoding of biochemical analysis allows the diagnosis of many diseases. This study includes the identification of a number of factors that reflect the state of metabolic processes. It is prescribed in the following cases:

• with pathologies of the reproductive system;
• with diseases of the circulatory system;
• with liver or kidney failure;
• in case of disturbances in the work of the heart;
• with diseases of the musculoskeletal system;
• with pathologies of the thyroid gland;
• with problems in the digestive system.

Based on this study, in some cases a final diagnosis is established, but more often for the full diagnosis, the results of additional research methods and an assessment of the pathological process picture are necessary.

So, how much is a general blood test for biochemistry?

What does the term depend on?

The timing of a biochemical blood test depends on the technical equipment of the laboratory in which the patient donates blood. Since this study analyzes the hormonal immunological and biochemical composition of the blood, this process can take several days. It depends on the number of detectable blood components and can take from 3 to 14 days.

Often people are interested in how much a general urine and blood test is done.

Analysis of urine

Urinalysis is a comprehensive laboratory measure by which a number of chemical and physical characteristics of a given substance are detected, on the basis of which a specific diagnosis can be made. Due to its simplicity and high information content, this analysis is considered an integral part of any diagnosis. Deciphering the urine analysis involves a description of such indicators:

• color;
• transparency;
• acidity and specific gravity.

After that, the presence of specific elements in the urine, such as:

• glucose;
• protein;
• ketone bodies;
• bile pigments;
• inorganic substances;
• hemoglobin;
• blood cells (red blood cells, white blood cells, etc.), as well as cells that are found in the genitourinary tract.

A study is prescribed in such cases:

• with an auxiliary study of the functioning of the urinary system;
• when monitoring the development of the disease and checking the quality of their therapy;
• with any diagnosis of pathologies in the body.

Using this analysis, you can diagnose kidney disorders, diseases of the prostate gland, bladder, various tumors, as well as a number of pathological phenomena in the early stages when there are no clinical symptoms.

Urinalysis

The duration of a general urine test is minimal. If such a study is carried out in an emergency when the patient needs urgent care, then this study takes a maximum of 20 minutes. In cases of a planned examination, the result of the analysis, as a rule, can be obtained the very next day after taking urine to the laboratory.

We examined how much a general blood and urine test is done.