Sign in →

Test Code VITAD Vitamin D, Immunoassay, Total, Serum


Specimen Required


Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions:

1. Serum gel tubes should be centrifuged within 2 hours of collection.

2. Red-top tubes should be centrifuged, and the serum aliquoted into a plastic vial within 2 hours of collection.


Useful For

Diagnosing vitamin D deficiency

 

Differential diagnosis of causes of rickets and osteomalacia

 

Monitoring vitamin D replacement therapy

 

Diagnosing hypervitaminosis D

Method Name

Electrochemiluminescence Immunoassay

Reporting Name

Vitamin D, Immunoassay, Total, S

Specimen Type

Serum

Specimen Minimum Volume

0.25

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Refrigerated (preferred) 4 days
  Frozen  168 days
  Ambient  8 hours

Reject Due To

Gross hemolysis Reject

Reference Values

<10 ng/mL (severe deficiency)

10-19 ng/mL (mild to moderate deficiency)

20-50 ng/mL (optimum levels)

51-80 ng/mL (increased risk for hypercalcuria)

>80 ng/mL (toxicity possible)

These reference ranges represent clinical decision values that apply to male and female patients of all ages, rather than population-based reference values. Population reference ranges for 25-hydroxyvitamin D vary widely depending on ethnic background, age, geographic location of the studied populations, and the sampling-season. Population-based ranges correlate poorly with serum 25-hydroxyvitamin D concentrations that are associated with biologically and clinically relevant vitamin D effects and are therefore of limited clinical value.

Day(s) Performed

Monday through Sunday

Report Available

Same day/1 to 3 days

Performing Laboratory

MCHS- Mankato

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

82306

LOINC Code Information

Test ID Test Order Name Order LOINC Value
VITAD Vitamin D, Immunoassay, Total, S 62292-8

 

Result ID Test Result Name Result LOINC Value
VITAD Vitamin D, Immunoassay, Total, S 62292-8