Sign in →

Test ID DHVD 1,25-Dihydroxyvitamin D, Serum

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

Method Name

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

Reporting Name

1,25-Dihydroxyvitamin D, S

Specimen Type

Serum

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

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.

Performing Laboratory

Mayo Medical Laboratories in Rochester

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

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.