Liquid Chromatography, Tandem Mass Spectrometry (LC/MS/MS)
Quest Diagnostics Valencia
1-2 mL Blood
Red Top (No Additive)
Room Temp: 28 Days; Refrigerated: 28 Days; Frozen: 28 Days
Gross hemolysis; Lipemia; Icteric specimens; Plasma
1 mL Serum
0.5 mL Serum
Allow blood to clot 30 minutes at room temperature. Centrifuge and separate the serum from the cells.
Vitamin D, 1,25 (OH)2, Total; Vitamin D3, 1,25 (OH)2; Vitamin D2, 1,25 (OH)2
If sample is submitted with less than 1.1 mL and needs to be repeated, the sample will be canceled with the comment "TNP-Initial testing necessitated a repeat, but there was insufficient sample to perform repeat".