VITAMIN D 1,25-DIHYDROXY, PEDIATRIC, SERUM

Performing Laboratory

Esoterix Laboratory Services (LabCorp Specialty Testing Group)

Useful For

Providing differential diagnosis of hypercalcemia

This test should be ordered ONLY by a pediatric endocrinology specialist or as a result of consultation with a pediatric endocrinology specialist. For all other patients, please order “VITAMIN D 1,25-DIHYDROXY” test code “125VD”.

Method Name

High-Performance Liquid Chromatography-Tandem Mass Spectrometry (HPLC-MS/MS)

Reference Values

Newborns:

≤ 30 days:

< 10 – 72 pg/Ml

Infants and Children:

31 days – 17 years:

15 – 90 pg/mL

Adults:

> 18 years:

21 – 65 pg/mL

Days and Times Test Performed

Monday, Tuesday and Thursday

Report Available

5-10 Days

Analytic time for send out tests is the time it will take to perform testing once it has arrived at the performing reference lab. Please add 1 to 2 days from time of collection to allow for receipt at NorDx central lab and shipment of specimen, add another day if specimen is collected on the day before a weekend or holiday.

Profile Information

Individual Test Description
1,25-DIHYDROXY VITAMIN D TOTAL, PEDIATRIC
1,25-DIHYDROXY VITAMIN D2, PEDIATRIC
1,25-DIHYDROXY VITAMIN D3, PEDIATRIC

Specimen Type

Serum

Preferred Container

Serum Separator Tube (SST)

Preferred Volume

Serum: 2 mL (Serum Separator Tube (SST)) – 0.8 mL does not allow for repeat testing

Minimum Volume

Serum: 0.8 mL (Serum Separator Tube (SST))

Specimen Collection and Handling

1. Spin specimen and separate from clot within 45 minutes of draw.

2. Send frozen in a screw-capped, plastic vial.

Specimen Stability Information

Specimen Type: Serum

Frozen: 544 Days

Refrigerated: 2 Days

Room Temp: 2 Days

Note: Stable 6 freeze/thaw cycles.

Add On Capable

Contact Reference Lab – If add-on can never be done, report the test to the Administrative Analyst

Advance Beneficiary Notice Requirements

No ABN Required

CPT Code Information

CPT Code	CPT Description	CPT Disclaimer
82652	Vitamin D, 1,25 Dihydroxy, Quantitative

Keywords

1,25-DIHYDROXY VITAMIN D

1,25-DIHYDROXYCHOLECALCIFEROL

1,25-DIHYDROXYVITAMIN D3

Performing Laboratory Location