Preparing a child for a blood test (Blutbild) depends on age and which parameters are measured. For a basic complete blood count, fasting is usually not required. However, if glucose, lipids, or iron status are included, fasting for 8–12 hours is standard; for toddlers this may be reduced to 4–6 hours. Hydration with plain water (no juice or milk) helps make veins easier to access. Age-appropriate preparation—using picture books, role-play, or social stories—can reduce anxiety. Distraction during the draw (e.g., a video) is effective. Topical anesthetic patches (e.g., lidocaine) can be used after consulting the pediatrician. After the draw, apply gentle pressure and offer a small reward. In infants, heel-prick capillary sampling is common. Evidence is based on clinical practice guidelines and expert consensus, not large trials. Always follow your pediatrician’s specific instructions.
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