Vitamin A

Print this article
Share this page:
Also known as: Retinol
Formal name: Retinol
Related tests: Full blood count (FBC), Vitamin B12 and Folate, Vitamin D, Iron Tests, Retinol-Binding Protein (RBP)

At a Glance

Why Get Tested?

To detect vitamin A deficiency or toxicity

When to Get Tested?

When a person has symptoms suggesting vitamin A deficiency or excess, or is at risk of vitamin deficiency such as patients on nutrition supplements.

Sample Required?

A blood sample taken from a vein in your arm

Test Preparation Needed?

A fasting blood sample is required, and no alcohol should be consumed for 24 hours before sample collection.