Vitamin D
25 OH Vitamin D, 25-hydroxyvitamin D3, 25-hydroxycholecalciferol, Cholecalciferol, D25.
32
Preferred Sample: SST Tube (Gold). Acceptable Samples: Heparin (Light Green), Plain Tube (Red).
Preferred Sample Volume (serum) 0.6 ml, Minimum Sample Volume 0.2 ml.
Biochemistry
Weekly
Roche E411 Electrochemiluminescence binding assay
nmol/L
Optimum range for bone health: 50 - 150 nmol/L
When assessment of Vitamin D stores is indicated, 25 OH Vitamin D should be measured. 1, 25 OH Vitamin D does not reflect tissue stores, serum levels are largely determined by PTH and renal 1-alpha hydroxylase activity. 1, 25 OH Vitamin D testing is performed in Australia.
VIT_D
14635-7
