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Values are valid only on day of printing. |
As a second-order test in the assessment of vitamin D status, especially in patients with renal disease
Investigation of some patients with clinical evidence of vitamin D deficiency (eg, vitamin D-dependent rickets due to hereditary deficiency of renal 1-alpha hydroxylase or end-organ resistance to 1,25-dihydroxyvitamin D)
Differential diagnosis of hypercalcemia
Extraction/Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)