was sagt ein großes blutbild aus — what are common causes?

A complete blood count (CBC) provides an overview of the cellular components of blood: red blood cells, white blood cells, platelets, hemoglobin, and hematocrit. Deviations can point to various underlying conditions but are never diagnostic alone. Common causes of abnormalities include: anemia (iron deficiency, B12 deficiency, chronic disease), infection (elevated white cells), inflammation, blood loss, kidney or liver disease, and medication side effects. A CBC is a screening tool that must be followed by specific tests. Interpretation should be done by a physician, as many findings are non-specific. The evidence for its clinical use is strong (standard medical practice), but its predictive power is limited – it indicates possible issues, not definitive causes. Caveat: Isolated deviations may be physiological or due to lab variation.