Micronutrient, Vitamin A (Retinol)

Micronutrient, Vitamin A (Retinol)

Test Code

10179
84590
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
10179
84590
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 | Quest Nichols Institute -San Juan Capistrano, CA. 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

Micronutrient, Vitamin A (Retinol) - Vitamin A is critical for vision, growth and many cell functions. High concentrations of Vitamin A are seen with renal failure, but this is not associated with toxicity and excessive ingestion. High concentrations are associated with bone fractures. Low concentrations of Vitamin A are consistent with fat malabsorption and are rarely due to inadequate diet.

Test Resources

None found for this test
Please visit our Clinical Education Center to stay informed on any future publications, webinars, or other education opportunities.

Test Details

Patient Preparation

Overnight fasting is required

Methodology

Chromatography

Assay Category

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.

Reference Range(s)

18-19 years 26-72 mcg/dL
>19 years 38-98 mcg/dL
Reference range not available for individuals <18 years for this micronutrient test.

LOINC® Codes, Performing Laboratory

Service Area must be determined
Overnight fasting is required

Methodology

Chromatography
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.

Reference Range(s)

18-19 years 26-72 mcg/dL
>19 years 38-98 mcg/dL
Reference range not available for individuals <18 years for this micronutrient test.
Service Area must be determined

Preferred Specimen(s)

2 mL serum - protected from light

Minimum Volume

0.7 mL

Collection Instructions

Patients should be 18 years of age or greater.

Separate from cells within 24 hours after clotting. Send serum in an amber tube. If an amber tube is not available, wrap tube in aluminum foil to protect from light.

Transport Container

Amber transport tube

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

  • Room temperature: 24 hours
  • Refrigerated: 7 days
  • Frozen: 28 days

Reject Criteria

Gross hemolysis • Grossly lipemic • Received room temperature • Not protected from light • Plasma

Setup Schedule

Service Area must be determined
2 mL serum - protected from light
0.7 mL
Patients should be 18 years of age or greater.

Separate from cells within 24 hours after clotting. Send serum in an amber tube. If an amber tube is not available, wrap tube in aluminum foil to protect from light.
Amber transport tube
Refrigerated (cold packs)
Room temperature: 24 hours
Refrigerated: 7 days
Frozen: 28 days
Gross hemolysis • Grossly lipemic • Received room temperature • Not protected from light • Plasma
Service Area must be determined
Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano | Quest Nichols Institute -San Juan Capistrano, CA. 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.

The tests listed by specialty and category are a select group of tests offered. For a complete list of Quest Diagnostics tests, please adjust the filter options chosen, or refer to our Directory of Services.

Customize the test information for your Service Area