Fat Soluble Vitamins - ADEK:
Fasting Required: 10-12 hours
Lab: Quest Diagnostics
Specimen: Blood
Results: Average processing time 4-7 days
Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
Special Instructions: Refrain from vitamins, alcohol and fruits 24 hours prior to sample collection. No foods containing vitamin A should be ingested in the previous 48 hours before blood draw. Patient should refrain from eating liver and taking multivitamins or vitamin K at least 24 hours before sample collection. Dietary supplements containing biotin may interfere in assays and may skew results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation.
Tests Included:
Vitamin A: Also known as retinoids, Vitamin A ensures good eyesight and healthy skin. It also helps to strengthen the immune system.
Vitamin D, 25 Hydroxy: Used in the absorption of calcium and phosphorus in the body. As it promotes calcium absorption, it aids in proper growth and development of bones. Vitamin D also helps in strengthening teeth and bones. Secondly, one of the most important benefits of vitamin D is that it enhances the immune system of the body which consequently helps in reducing the risk of several diseases and infections.
Vitamin E: Splendid antioxidant properties. Vitamin E plays a protective and restorative part in several body functions. It protects the body cells from oxidative damage and improves overall health of a person.
Vitamin K: Vitamin K is produced by bacteria present in our large intestine. It is required for clotting of blood and also for bone formation.