Vitamin D, 25-Hydroxy, Total, Immunoassay

Vitamin D, 25-Hydroxy, Total, Immunoassay

Test Code

17306
82306
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
17306
82306
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection may be available in your area for purchase through Quest Mobile.

Clinical Significance

Vitamin D, 25-Hydroxy, Total, Immunoassay - Measurement of serum 25-OH vitamin D concentrations provide a good index of circulating vitamin D activity in patients not suffering from renal disease. Lower than normal 25-OH vitamin D levels can result from a dietary deficiency, poor absorption of the vitamin or impaired metabolism of the sterol in the liver. A 25-OH vitamin D deficiency can lead to bone diseases such as rickets and osteomalacia. Above normal levels can lead to hypercalcemia

Test Resources

Test FAQ

Vitamin D Testing

Algorithm

Testing for Comorbidities and Complications of Chronic Kidney Disease

Test Guide

Laboratory Testing for Chronic Kidney Disease Diagnosis and Management

Sample Report

Vitamin D, 25-Hydroxy, Total, Immunoassay - In Range

Sample Report

Vitamin D, 25-Hydroxy, Total, Immunoassay - Out of Range

Test Details

Patient Preparation

Fasting preferred, but not required

Methodology

Immunoassay (IA)

Reference Range(s)

30-100 ng/mL

Alternative Name(s)

25 OH Vitamin D,Vitamin D, 25-OH,25-Hydroxy Vitamin D,Vitamin D, 25-Hydroxy

LOINC® Codes, Performing Laboratory

Service Area must be determined
Fasting preferred, but not required

Methodology

Immunoassay (IA)

Reference Range(s)

30-100 ng/mL

Alternative Name(s)

25 OH Vitamin D,Vitamin D, 25-OH,25-Hydroxy Vitamin D,Vitamin D, 25-Hydroxy
Service Area must be determined

Preferred Specimen(s)

0.8 mL serum

Minimum Volume

0.5 mL

Transport Container

Transport tube

Transport Temperature

Room temperature

Specimen Stability

  • Room temperature: 7 days
  • Refrigerated: 7 days
  • Frozen: 28 days

Reject Criteria

Moderate hemolysis • Grossly lipemic • Plasma

Setup Schedule

Service Area must be determined
0.8 mL serum
0.5 mL
Transport tube
Room temperature
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days
Moderate hemolysis • Grossly lipemic • Plasma
Service Area must be determined
Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection may be available in your area for purchase through Quest Mobile.
Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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