Why is the red blood cell count in children's blood routine high?

When doing a routine blood test, the red blood cell level must be checked. The red blood cell level in human blood is affected by many factors. For example, some people have a higher blood concentration, so the red blood cell content will increase. In addition, some heart and lung diseases can affect the number of red blood cells. Strenuous physical labor can also lead to an increase in red blood cells. Similarly, there are many reasons why children have high red blood cell levels.

Why is the red blood cell count in children's blood routine high?

This situation is not serious. The increase in red blood cells is considered to be a result of vigorous bone marrow hematopoietic function, which can be seen in normal people, and can also be seen in compensatory increases caused by chronic hypoxia. You can have your blood test repeated one month later.

Guidance:

Don’t worry, develop good living habits, exercise to strengthen your physical fitness, and I wish you health and happiness.

Target red blood cells are often seen in thalassemia, iron deficiency anemia, sideroblastic anemia, obstructive jaundice, liver disease, after splenectomy, familial serum lecithin cholesterol transacylase deficiency, and hemoglobinopathies (HbC, HbE, HbD, HbS). Further examination is recommended

Why is the red blood cell count in a routine blood test high?

Increased red blood cell counts occur in:

⑴ Patients with severe vomiting, diarrhea, extensive burns and advanced gastrointestinal tumors. It is mostly caused by dehydration and hemoconcentration, which leads to a relative increase in the formed elements in the blood. ⑵ Cardiopulmonary diseases: congenital heart disease, chronic lung disease and chronic carbon monoxide poisoning, etc. Due to lack of oxygen, a large number of red blood cells must be used to maintain oxygen supply. ⑶ Stem cell disease: polycythemia vera.

Red blood cells contain a large amount of hemoglobin (Hb), and the functions of red blood cells are mainly performed by hemoglobin. In addition to acting as a blood buffer, the main function of hemoglobin is to carry oxygen (O2) and carbon dioxide (CO2). Physiological increase: Residents living in plateau areas often have higher red blood cells and hemoglobin than those living in plains. Drinking too little water or sweating too much can cause excessive water elimination, which can lead to temporary blood concentration and a slight increase in red blood cells and hemoglobin. In newborns, the height increase is physiological. Pathological increase: severe vomiting, diarrhea, heavy sweating, patients with extensive burns, diabetes insipidus, hyperthyroid crisis, diabetic acidosis, etc. Due to excessive water loss in the plasma, the blood is concentrated, and there will be a significant increase in the amount of red blood cells and hemoglobin. Chronic heart disease, cor pulmonale, cyanotic congenital heart disease, etc., due to tissue hypoxia, increase of erythropoietin in the blood leads to compensatory increase of red blood cells and hemoglobin in the blood.