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Vitamin A
Check vitamin A levels.
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- Test description
Serum vitamin A (retinol) determination is useful in the diagnosis of dusk blindness, malabsorption syndrome and in the evaluation of the assessing the effectiveness of parenteral treatment. Vitamin A is an antioxidant that protects cells from oxidative stress It is part of the retina, ensuring normal vision In addition, it participates in the synthesis of steroid hormones. Deficiency of of retinol manifests itself in poor vision at dusk, weakening of hair and nails, as well as dry skin. Also, an excess of this vitamin causes dry skin, in addition to having adverse effects on the mood and the digestive tract.