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Test Code DHVD 1,25-Dihydroxyvitamin D, Serum

Additional Codes

MLAB: Y9P

Powerchart: Vitamin D 1,25 Dihydroxy Level

Epic: LAB536 Vitamin D 1,25 Dihydroxy

MA Cerner: 1,25-Dihydroxy Vitamin D.


Specimen Required


Patient Preparation: Fasting (4-hour preferred but not required)

Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Specimen Volume: At least 1.5 mL


Reporting Name

1,25-Dihydroxyvitamin D, S

Method Name

Extraction/Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Serum

Specimen Minimum Volume

0.7 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 7 days
  Frozen  28 days
  Ambient  7 days

Reference Values

Males

<16 years: 24-86 pg/mL

≥16 years: 18-64 pg/mL

Females

<16 years: 24-86 pg/mL

≥16 years: 18-78 pg/mL

Day(s) and Time(s) Performed

Monday through Friday; 3 p.m.

Test Classification

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.

CPT Code Information

82652

LOINC Code Information

Test ID Test Order Name Order LOINC Value
DHVD 1,25-Dihydroxyvitamin D, S 62290-2

 

Result ID Test Result Name Result LOINC Value
8822 1,25-Dihydroxyvitamin D, S 62290-2

Useful For

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-dihydroxy vitamin D)

 

Differential diagnosis of hypercalcemia

Reject Due To

Hemolysis

Mild OK; Gross reject

Lipemia

Mild OK; Gross OK

Icterus

Mild OK; Gross OK

Other

NA