GK
VITAMINS MINERALS COENZYMES AND DEFICIENCY DISEASES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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xeropthalmia
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keratinization
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night blindness
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none of these
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Detailed explanation-1: -Night blindness (in which it is difficult or impossible to see in relatively low light) is one of the clinical signs of vitamin A deficiency, and is common during pregnancy in developing countries. Retinol is the main circulating form of vitamin A in blood and plasma.
Detailed explanation-2: -Impaired dark adaptation of the eyes, which can lead to night blindness, is an early symptom of vitamin A deficiency.
Detailed explanation-3: -(Retinol Deficiency) Vitamin A deficiency can result from inadequate intake, fat malabsorption, or liver disorders. Deficiency impairs immunity and hematopoiesis and causes rashes and typical ocular effects (eg, xerophthalmia, night blindness). Diagnosis is based on typical ocular findings and low vitamin A levels.