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VDHYD / 500600E
VITAMIN D, 1,25-DIHYDROXY, PEDIATRIC, SERUM

Test Code VDHYD / 500600E 
Test VITAMIN D, 1,25-DIHYDROXY, PEDIATRIC, SERUM 
Methodology HPLC with Tandem Mass Spectrometry 
Description Useful for the differential diagnosis of hypercalcemia 
Specimen Draw blood in a plain, red-top tube(s) or a serum gel tube(s). Spin down and send 2.0 mL (minimum: 0.8 mL) of serum FROZEN in a screw-capped, plastic vial. 
Reference Values Newborns:
< or = 30 days: < 10 - 72 pg/mL

Infants and Children:
31 days - 17 years: 15 - 90 pg/mL

Adults:
> 18 years: 21 - 65 pg/mL 

Analytic Time 3 - 6 Days 
Day(s) Test Set Up Monday, Tuesday, Thursday 
CPT Code(s) 82652