Anemia often accompanies any chronic illnesses of kidneys. This is the most frequent and early chronic kidney insufficiency complication. Intensity of anemia is influenced by its cause. The anemia arises for example, at diabetic nephropathy.
Hormone erythropoietin which stimulates formation of red blood cells is generated in kidneys. Its deficiency is the main factor of anemia development. Artificial erythropoietin is applied to treatment of renal anemia. It can eliminate almost completely anemia and reduce need for blood transfusion for renal patients.
Preparations of erythropoietin id usually injected subcutaneously as it is cheaper and more convenient for the patient. If the patient is compelled to undergo dialysis procedures, erythropoietin can be used during dialysis, injected intravenously. For some patients insusceptibility to erythropoietin develops.
The important place in development of renal anemia is taken also by deficiency of iron. It can be absolute (stocks reduction in organism) and functional (at inflammatory diseases). Deficiency of iron is characteristic for the patients who are regularly passing hemodialysis, not receiving iron medicines for a long time. The most important cause of iron deficiency is loss of 3-4 liters of a blood within a year that is equivalent to two grams of iron.
Patients with low level of hemoglobin beginning hemodialysis need to select thoroughly a heparin dose against blood clotting. Intravenous injection of iron medicines is obligatory for dialysis patients. Young women have a bigger need for iron than men. At absolute deficiency 1 gram of iron is entered within 6–10 weeks.