[Anemia in the elderly].

Anemia is not physiologically associated with increasing age but a symptom of an underlying disease. The individual patient's wish, results of geriatric assessment, and therapeutic options regarding life expectancy and quality of life must be taken into consideration when determining the diagnostic steps to be taken. Prevalence of anemia is high, reaching up to 40% among geriatric inpatients. There are various reasons for anemia, but the three most frequent forms of anemia in the elderly are iron deficient anemia (IDA), anemia of chronic diseases (ACD), and unexplained anemia (UA). This article will, therefore, be limited to these forms. Until now no guidelines have been developed concerning diagnostic and therapeutic steps for anemia in the elderly. For basic diagnostics, the analysis of hematologic parameters such as hemoglobin, ferritin, and the saturation of transferrin are recommended. Therapeutic options have to be chosen according to the underlying disease.