Fat Soluble Vitamin Blood Test Panel

Quick Facts

• Sample: Blood
• Fasting: Fasting for at least 12 hours is required. Patients must refrain from consuming alcohol for at least 24 hours before the collection.
• Turnaround: 10 business days. May take longer based on weather, holiday, or lab delays.

What's Included

This panel measures the following fat-soluble vitamins, grouped by vitamin.

Vitamin A

• Vitamin A: A fat-soluble vitamin that supports growth, healthy teeth, bones, skin, and vision. Helps assess vitamin A status and identify possible deficiencies.

• Vitamin A (Retinol): The main active form of vitamin A in the blood. Helps assess vitamin A levels and identify deficiencies or excess. (Not included in LabCorp)

Vitamin D 25-Hydroxy

• Vitamin D, 25-Hydroxy: The primary circulating form of vitamin D in the blood, reflecting the body's vitamin D stores. Helps assess vitamin D status and identify deficiencies that may affect bone health and calcium absorption.

Vitamin E

• Alpha Tocopherol: The main form of vitamin E in the blood that helps protect cells from oxidative damage. Helps assess vitamin E levels and identify possible deficiencies.

• Beta-Gamma Tocopherol: Forms of vitamin E that act as antioxidants to protect cells. Helps assess vitamin E levels and antioxidant status.

Vitamin K1

• Vitamin K1: A fat-soluble vitamin that supports blood clotting, bone health, and normal body function. Helps assess vitamin K status and identify deficiencies that may affect clotting and bone metabolism.

Benefits

• Measures four fat-soluble vitamins (A, D, E, and K) in one blood draw.
• Screens for fat-soluble vitamin deficiency or toxicity.
• Includes Vitamin A and Vitamin E measurements.
• Provides Vitamin D levels through the 25-Hydroxy measurement.
• Includes Vitamin K1 to reflect your vitamin K status.

Who Is This Test For?

• Adults experiencing symptoms that may be linked to a vitamin deficiency, such as fatigue or muscle weakness.
• Adults with symptoms that may be linked to vitamin toxicity, such as nausea or headaches.
• People who take high-dose vitamin supplements and want to check their levels.
• People with a very limited diet or malnourishment who want to review their vitamin status.
• People with health conditions that may affect vitamin absorption.

How It Works

1. Order Your Test Online
2. Visit a Local Lab
3. Get Results Online

FAQ

1. Do I need to fast or prepare for this test?

Plan ahead before your blood draw. Fasting for at least 12 hours is required. Patients must refrain from consuming alcohol for at least 24 hours before the collection.

2. How quickly will I get results?

Expect your results in 10 business days. May take longer based on weather, holiday, or lab delays.

3. What can my results tell me?

Together, the measurements show how much of each fat-soluble vitamin is circulating in your blood. That gives you a view of possible deficiency or excess across vitamins A, D, E, and K. Each vitamin supports different functions in the body, so the panel is best viewed as a screening tool rather than a complete clinical evaluation.

4. How do I interpret the results?

Interpretation depends on the pattern across all four vitamins and on your personal context, including symptoms, medical history, medications, and how you prepared for the test. A single value rarely tells the whole story, and the vitamins do not necessarily move together. Review your report with a qualified healthcare provider.

Disclaimer: Reference ranges may vary by laboratory. Listed ranges are general guidelines and may differ from those used by the performing lab. Always consult your healthcare provider for interpretation.

5. What should I do if my results are abnormal?

Start by sharing your report with a qualified healthcare provider. One out-of-range value does not automatically mean a condition is present or that action is needed. Your provider can look at the full pattern of results alongside your health history and decide whether any further evaluation is appropriate.

Pre-test preparation

Fasting for at least 12 hours is required. Patients must refrain from consuming alcohol for at least 24 hours before the collection.