was kann man im blut alles feststellen — which blood markers matter?

Blood tests can measure a wide range of markers that provide insights into health status. Key markers include: lipid profile (total cholesterol, LDL, HDL, triglycerides) for cardiovascular risk, fasting glucose and HbA1c for glucose metabolism, liver enzymes (ALT, AST, GGT) and kidney markers (creatinine, urea). Inflammatory markers like hs-CRP, thyroid parameters (TSH, fT3, fT4), and iron status (ferritin, transferrin) are also important. Vitamin D and B12 levels reflect nutritional status. A complete blood count (CBC) assesses red/white blood cells and platelets. Caveat: no single marker is diagnostic; results must be interpreted by a physician in context. Consumer tests (e.g., MyBody-X Cardio Risk Check) typically measure standard lipids and hs-CRP, but do not replace a full medical workup. Evidence: practice (widely accepted clinical practice).