Vitamin A is a fat-soluble vitamin that plays an important role in maintaining healthy vision, immune function, and skin health. It can be obtained from a variety of dietary sources, including fruits, vegetables, and animal-derived products.

Pre-test preparation:

No specific preparation is typically required for a vitamin A test. However, it is important to inform the healthcare provider if you are taking any supplements or medications, as these can affect the results of the test.

Testing method:

A blood sample is taken from a vein in the arm and sent to a laboratory for analysis.

Common symptoms for prescribing this test:

• Dry, itchy skin
• Night blindness
• Dry eyes
• Impaired immunity
• Diagnosis of a vitamin A deficiency or toxicity

Reference range:

The reference range for vitamin A in the blood varies depending on the laboratory, but generally ranges between 20-80 mcg/dL.

Normal values:

Normal values of vitamin A in blood is about 20-80 mcg/dL

Medical disclaimer:

This information is for educational purposes only and is not intended to replace the advice of a healthcare professional. It is important to consult with a healthcare provider for specific information and guidance regarding your individual medical condition.