Vitamin A and E

Clinical Use

Order Test

Use

Assess hyper-vitaminosis or vitamin deficiency. See individual test descriptions for more information.

Special Instructions

Not provided.

Limitations

This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the FDA, implying limitations in the context of regulatory oversight. The results should be interpreted in conjunction with other clinical information and laboratory studies. Results could vary depending on patient preparation and sample handling.

Test Details

Methodology

Mass Spectrometry

Biomarkers

Vitamin A

Analyte

Vitamin A

Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)

Vitamin E (Alpha Tocopherol)

Analyte

Vitamin E (Alpha Tocopherol)

Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)

Vitamin E (Gamma Tocopherol)

Analyte

Vitamin E (Gamma Tocopherol)

Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)

LOINC Codes

Order Codes

1823-4 - A-Tocopherol Vit E SerPl-mCnc
2923-1 - Vit A SerPl-mCnc
63370-1 - Gamma tocopherol SerPl-mCnc

Result Codes

2923-1 - Vit A SerPl-mCnc
1823-4 - A-Tocopherol Vit E SerPl-mCnc
63370-1 - Gamma tocopherol SerPl-mCnc

Result Turnaround Time

4-6 days

Specimen

Serum

Volume

0.8 mL

Minimum Volume

0.4 mL

Container

Red-top tube or gel-barrier tube

Collection Instructions

If a red-top tube is used, transfer separated serum to a plastic transport tube.

Patient Preparation

Patient should abstain from alcohol for 24 hours prior to collection. For those younger than six months, draw prior to next feeding. Blood should be collected before breakfast in the morning and prior to any medication.