Service Description

The Vitamin A test measures the level of vitamin A (retinol) in the blood, an essential nutrient for vision, immune function, and cellular health. Why it’s done: To assess vitamin A deficiency or toxicity To support eye health and vision evaluation To evaluate immune system function To monitor nutritional status in at-risk populations To guide dietary or supplementation adjustments Specimen Type: Blood (serum) Turnaround Time: Typically 2–3 business days Collection Available: In-office or mobile blood draw services