The blood test for children is done from birth. The first clinical analysis of blood in a child is taken in the hospital. Further, as the child grows, such an analysis is done before each vaccination.
When examining the blood for a general or, as it is also called, a clinical blood test, the child should be hungry whenever possible, that is, the blood is given on an empty stomach. Usually, blood collection offices in polyclinics work from 8.00.before 9.30.At this time, blood indicators in the body are the most optimal.
The blood must be given on an empty stomach, because after the meal the stomach starts to work actively and the number of leukocytes in the blood can increase, which in turn can give the doctor incorrect information about the child's health. Also, before passing the blood test, you can not undergo any procedures, such as X-rays, FGDs and various physiotherapy procedures, this can also lead to an increase in white blood cells in the blood.
Leukocytes refer to blood cells that perform the primary protective function. They are white blood cells, round in shape, which are capable of absorbing and digesting various microorganisms. They contain in their composition enzymes that can destroy the foreign protein.
The development and maturation of leukocytes is carried out in the red bone marrow. Leukocytes in their form and properties are different. In some leukocytes, the cytoplasm has a granular structure, they are called granulocytes, and in others the cytoplasm does not have such granularity, they are called agranulocytes. Granulocytes include eosinophils, rod-shaped leukocytes - these are young cells, segmented leukocytes are mature cells, as well as basophils. Agranulocytes are lymphocytes and monocytes. All these different in their form and structure of leukocytes and constitute the leukocyte formula of blood.
Normally, the number of stab wedges should not exceed 5% of all leukocytes, if this number is higher, it can already indicate some kind of disease. The increase in stabnuclear leukocytes in the leukocyte blood formula is called a stab-shift or shift of the leukocyte formula to the left. The number of eosinophils in the leukocyte formula should not exceed 4%, if this figure is higher, this may indicate an allergic reaction of the organism or the presence of helminths in the child, in other words, this indicates the presence of foreign protein in the body.
Leukocytosis is an increase in the number of leukocytes in the blood. It can be both physiological and pathological.
A physiological increase in the level of white blood cells in the blood may be caused by physical activity, for example, after active child play or jogging. After eating, the level of leukocytes in the blood can be increased within two hours. During psychoemotional stress, after taking a hot bath, the level of leukocytes in the blood will also be increased. That is why the most reliable blood test result will be in the morning, not during the day. In the evening, even in a healthy person, leukocytes in the blood may be elevated.
The pathological increase in the level of leukocytes in the blood is always associated with some kind of pathology, i.e. Painful condition. It can be various infectious diseases, poisonings, purulent processes, burns and any injuries, even a rise in temperature for colds also leads to an increased number of leukocytes in the blood.
Do not diagnose yourself. In case the white blood cells exceed the norm in the blood test, you need to see a doctor, that he would prescribe an additional examination and put the correct diagnosis.
Less commonly, leukocytosis indicates a blood disease, such as leukemia. Such a diagnosis the doctor of the clinical diagnostic laboratory can put at the first study of the leukocyte blood formula. Fortunately, such diseases are not so common.
Low leukocyte count is leukopenia. This is also not quite a healthy state. A lowered level of leukocytes in the blood may indicate a viral infection or a decrease in immunity. With a decrease in pressure, fasting, a depressed state, the level of leukocytes in the blood can also decrease.
Blood test can be carried out in any medical institution, it is done urgently within an hour - during this time a complete clinical blood test is done, and the total level of leukocytes in the blood is determined within 15 minutes. Of course, for accurate diagnosis of the disease, some of the leukocytes are not enough, but this starts any examination. And if the doctor deems it necessary, he will prescribe additional examinations, this may be a general urine test or a biochemical blood test, as well as other studies such as lung X-rays and fluorography or more serious examinations.
Special preparation for blood donation does not require a study. The main thing is that the analysis was performed on an empty stomach and in the morning. If the baby is breastfeeding, it is allowed to feed him 2 hours before blood donation. Older children take a blood test only before meals.
The procedure for blood donation itself lasts no more than two minutes. If the child is afraid to donate blood, it should be reassured. By the way, if the child is going to cry before the procedure, this too can be the cause of elevated white blood cells in the blood.
In automatic equipment stores and in regular pharmacies, automatic scarifiers are now sold. They are sold per piece and cost no more than 10 rubles. The piercing of such scarifiers is absolutely painless. It is better for children to use them. In state polyclinics and hospitals, such scarifiers may not be, so before donating blood, it is better to go to the pharmacy and purchase an automatic scarifier for your child.