Micronutrient, Vitamin E

Test Code

10183

CPT Code(s)

84446

CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.

Test Code

10183

CPT Code(s)

84446

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 E - Deficiency of Vitamin E may cause extensive neuropathy in young children and, in addition, is suspect as a possible cause of motor and sensory neuropathy in older children and in adults. One likely cause of Vitamin E deficiency is intestinal malabsorption, resulting from bowel disease, pancreatic disease, or chronic cholestasis. Other causes of malabsorption of Vitamin E include celiac disease, cystic fibrosis, and intestinal lymphangiectasia.

Test Resources

None found for this test
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Test Details

Includes

Vitamin E, Alpha Tocopherol
Vitamin E, Beta-Gamma Tocopherol

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)

Vitamin E, Alpha Tocopherol

≥18 years

5.7-19.9 mg/L

Reference range not available for individuals <18 years for this micronutrient test.

Vitamin E, Beta-Gamma Tocopherol

≥18 years

<4.4 mg/L

Reference range not available for individuals <18 years for this micronutrient test.

LOINC® Codes, Performing Laboratory

Service Area must be determined

Includes

Vitamin E, Alpha Tocopherol
Vitamin E, Beta-Gamma Tocopherol

Patient Preparation

Overnight fasting is required

Methodology

Chromatography

Assay Category

Reference Range(s)

Vitamin E, Alpha Tocopherol

≥18 years

5.7-19.9 mg/L

Reference range not available for individuals <18 years for this micronutrient test.

Vitamin E, Beta-Gamma Tocopherol

≥18 years

<4.4 mg/L

Reference range not available for individuals <18 years for this micronutrient test.

LOINC® Codes, Performing Laboratory

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

Preferred Specimen(s)

2 mL serum - protected from light

Minimum Volume

0.7 mL

Collection Instructions

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

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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