Vitamin A and E

Casandra

Casandra Test Code LC22729Version 1 (DRAFT)

Performing Lab

Lab LabcorpLab Test ID 144039CPT Codes 84446, 84590

Clinical Use

Order Test

Use

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

Special Instructions

Patient should abstain from alcohol for 24 hours prior to collection. For children younger than six months, blood should be drawn before the next feeding. Blood collections should occur before breakfast and prior to any medication to ensure accurate results. If a red-top tube is used, the serum should be transferred to a plastic transport tube to maintain sample integrity.

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
2923-1
63370-1

Result Codes

2923-1
1823-4
63370-1

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.