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What is a VITAMIN A (RETINOL)?

Vitamin A (Retinol) is a blood test that measures the level of retinol, the main circulating form of vitamin A, which is essential for vision, immune function, skin health, and normal growth. The test is needed to evaluate suspected vitamin A deficiency or excess, particularly in people with malabsorption, poor nutritional intake, or certain liver disorders, and can help guide appropriate nutritional management.

Additional Information

Also known as/ Other names: Serum Retinol Test, Plasma Retinol Test, Vitamin A Blood Test, Retinol Level Test, Fat-Soluble Vitamin A Test
Parameters: 1
Recommended for: M/F/Others
Sample Type: Blood
Patient Preparation: Overnight fasting is mandatory
Reports: Coming Wednesday following your test day

FAQs

What is Vitamin A?

Vitamin A is an essential fat-soluble vitamin required for normal vision, immune function, growth, reproduction, and maintenance of healthy skin and tissues.

What is retinol?

Retinol is a biologically active form of vitamin A that circulates in the blood and plays an important role in vision, cellular function, and other physiological processes.

What does a low Vitamin A level mean?

A low retinol level may indicate vitamin A deficiency, although results can also be affected by inflammation, illness, nutritional status, and other factors.

What does a high Vitamin A level mean?

Excess vitamin A, particularly from high-dose supplements or certain medications, can lead to toxicity. Elevated results should be interpreted according to the clinical context.

Can Vitamin A deficiency affect eyesight?

Yes. Vitamin A is essential for normal vision, particularly adaptation to darkness. Significant deficiency can cause night blindness and, in severe cases, serious eye complications.

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