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General blood test in children: decoding and norms

Complete blood count (KLA) or “clinical” – a popular technique for laboratory diagnostics in pediatrics. It helps a specialist to assess the health of the child and identify violations if they are present. Therefore, KLA is prescribed for children with various diseases in order to find the root cause of the problem and choose a rational treatment. For example, if the disease is caused by a viral infection, then appropriate treatment is required, and not antibacterial. This analysis is able to indicate the nature of the disease. The results of a general blood test can be affected by a number of factors, which we will discuss below.

Preparing a child for a general blood test

First of all, if the child already understands where they are taking him, then you can play a doctor. Let the baby take blood from the toys himself, and then go see how the specialist does it. A child will not be afraid to go to the clinic unless doctors scare him from childhood. It is better to play doctor more often and visit specialists as planned. Then people in bathrobes will not cause horror in the child.

My mothers and grandmothers often ask me how to properly prepare for the KLA. And this is the right question, because the accuracy of the results depends on it. The child is not yet able to independently perform everything, then the responsibility for this lies with the parents.


The most favorable time for taking a general blood test is from 8-11 a.m.
The quality and quantity of food. They donate blood strictly on an empty stomach, from the moment of the last meal, 8-12 hours should pass. But how to withstand a small period with a small child? I agree, therefore, for children this time can be reduced to 4-6 hours. By the way, “on an empty stomach” also means refusal to drink: tea, coffee, juice, soda, and also sugar and honey. Some people think that a light snack on tea biscuits will not hurt. But in the end, you can get erroneous blood counts, and sometimes it is critical for doctors. You can drink plain water before analysis.
Taking medications also affects the composition of the blood. The day before the blood test, we stop taking the medicine. If this is not possible, be sure to inform the doctor so that he makes an amendment when taking the results into account.
Physical exercise. Of course, nothing will happen from light swings of arms or legs, but it is better to postpone classes in a sports club. Physical activity leads to changes in blood leukoformula, hormones and glucose.
Provide quality sleep and a minimum of emotional stress. In the case of a general blood test, stress leads to an increase in white blood cells. If we are talking about a biochemical analysis of blood, then here too experiences may affect indicators.
If the child is currently ill, then the doctor should also be informed about this. Diseases directly affect blood counts.
Complete blood count: transcript in children

When the data of the general blood test of the child were in your hands, then the question arises of decryption. Of course, this should be done by a specialist, but it is also important for parents to know what’s wrong with the baby’s health. Instead of the usual words “hemoglobin”, etc., you will find abbreviations in English. Below I give a list of what they mean.

Decoding of a general blood test in children:

The form also contains notes about the abbreviations:

(%) – means the relative content of the element,
(#) – absolute content of the element.
Blood test standards in children
It is important for parents to know that the norms of a blood test in a child are different from ours. Their body systems work differently, immunity only continues to get acquainted with the outside world, and all this affects the blood. Therefore, do not be scared if you notice significant deviations when comparing with your parameters. Below you will find a table with the norms of blood tests in children. You can keep it, as indicators change while the child grows.

The diagnostic features of the medical institution should be considered. The laboratory may have its own equipment settings and sensitivity of reagents. Therefore, the indicators may vary slightly, and you need to pay attention to the standards that apply in this laboratory. Indicators may vary, depending on the method of calculating the results. Today, this is carried out by two methods: counting through a microscope by a specialist, or an automatic analyzer.

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