Basophilia (basophilic leukocytosis) is an increase in the content of basophils more than 150 in 1 μl of blood or more than 1% of the total number of leukocytes. It often accompanies eosinophilia, since basophils and eosinophils are jointly involved in many pathological reactions. The causes of basophilia are allergic, inflammatory, oncohematological diseases. There are no specific manifestations, the clinical picture is determined by the underlying pathology. Measurement of the level of basophils is carried out in the general blood test. To eliminate basophilia, it is necessary to treat the disease against which it arose.
Thrombocytosis is a pathological condition characterized by an increase in the content of platelets in the blood. The cause of this phenomenon is infectious, inflammatory or autoimmune pathologies, as well as malignant tumors of the hematopoietic system. In children, it often occurs against the background of iron deficiency anemia. The clinical picture may be different and is determined by the underlying disease. The level of platelets, as part of a complete blood count, is examined in venous or capillary blood. To correct thrombocytosis, the disease against which it developed is treated.