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caffeine

Name caffeine
Categories xanthine derivative
Specimen requirements 1 ml of serum
Procedure remarks Half-life period: 5 h
Methodology HPLC (high-performance liquid chromatography)
Reference ranges 2.0-10.0 mg/l
Newborn with apnoea: 5-20 mg/l
Toxic: > 20 mg/l
Remarks Testing currently takes place in a contract laboratory