Synonym(s):
3 mL plain blood. Avoid haemolysis.
Analyte is light sensitive. Wrap tube with aluminium foil.
Keep cold with ice and send immediately to the laboratory.
High Performance Liquid Chromatography
0 – < 1 yr : 0.14 - 0.52 mg/L
1 – 6 yrs : 0.20 - 0.43 mg/L
7 – 12 yrs : 0.26 - 0.49 mg/L
≥ 13 yrs : 0.26 - 0.72 mg/L
Mean = 7 days, Range: 3 – 11 days
Monday – Friday
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