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Test Code FV125 Calcitriol 1,25-Dihydroxyvitamin D


Specimen Required


Collection Container/Tube:

Preferred: Red top

Acceptable: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 0.6 mL

Collection Instructions:

1. Collect blood in a red-top tube.

2. Allow blood to clot (30 minutes) at room temperature.

3. Centrifuge and aliquot serum to a plastic vial.

4. Ship ambient.


Reporting Name

CALCITRIOL 1,25 diOH VitD

Specimen Type

Serum

Specimen Minimum Volume

0.25 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Ambient (preferred) 28 days
  Frozen  28 days
  Refrigerated  28 days

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject
Plasma Reject 

Reference Values

Vitamin D, 1,25 (OH) 2, Total pg/mL

 

<1 year: Not established

1-9 years: 31-87

10-13 years: 30-83

14-17 years: 19-83

≥18 years: 18-72

 

Vitamin D3, 1, 25 (OH) 2 indicates both endogenous production and supplementation. Vitamin D2, 1, 25 (OH) 2 is an indicator of exogenous sources, such as diet or supplementation. Interpretation and therapy are based on measurement of Vitamin D, 1, 25 (OH) 2, Total.

 

Vitamin D3, 1, 25 (OH) 2 pg/mL

No Reference Range

 

Vitamin D2, 1, 25 (OH) 2 pg/mL

No Reference Range

Day(s) Performed

Sunday through Monday

Report Available

4 to 7 days

Performing Laboratory

Quest Diagnostics Nichols Institute

Test Classification

This test was developed, and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

CPT Code Information

82652

LOINC Code Information

Test ID Test Order Name Order LOINC Value
FV125 CALCITRIOL 1,25 diOH VitD In Process

 

Result ID Test Result Name Result LOINC Value
Z5306 Vitamin D,1,25 (OH) 2, Total 62290-2
Z5307 Vitamin D3, 1,25 (OH) 2 1649-3
Z5308 Vitamin D2, 1,25 (OH) 2 62291-0