1,25 Dihydroxy Vitamin D, Pediatric Only

Abbrev Code:DHVDP   
Order Code:LAB8042Order Name:1,25 Dihydroxy Vitamin D, Pediatric
Synonyms:1, 25 Dihydroxycholecalciferol; 1,25 Dihydroxyvitamin D3; Vitamin D; Calcitriol
Methodology:Extraction/Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)
CPT Codes: 82652 x1
Turnaround Time:Testing is performed Mon-Fri at approximately 3 pm. Results are reported within 2-4 days.

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

Collection Instructions

Optimal Volume:3 mL
Minimum\Peds Volume:2.6 mL
Container:Red or gold (gel)
Alternate Containers: Red (no gel)
Patient Preparation:Fasting (4-hour preferred but not required)
Causes for Rejection:Grossly hemolyzed samples.

Processing and Shipping

Specimen Processing:Centrifuge and aliquot 1.5 mL, 1.2 mL minimum. Store at room temperature or refrigerated (preferred).
Shipping Instructions:Ship at refrigerated temperature.
Stability:1 week at room temperature or refrigerated (preferred); 28 days frozen
Test Performed at or Referral Lab Lab Sendouts  (Mayo Medical Laboratories)
Referral Lab number:DHVD


Reference Range:
Age Male Female
<16 y 24-86 pg/mL 24-86 pg/mL
> 16 y 18-64 pg/mL 18-78 pg/mL
Use: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 (e.g. 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.

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