3 mL blood in heparinised calcium titrated syringe. Send without delay for immediate analysis as ionised calcium level is pH dependent. Blood pH changes with time of storage.
Direct Ion-Selective Electrochemistry
0 – 6 mth : 0.95 - 1.50 mmol/L ≥ 7 mths: 1.18 - 1.37 mmol/L
Mean = 4 hrs, Range: 3 – 5 hrs
Daily, 24 hrs STAT
{0}
{1}
