Bitot’s spots in young children indicates the deficiency of:

RUHS, Jaipur, PB B.Sc Nursing Entrance-2020

Applied Nutrition & Dietetics

Easy

Appeared in: RUHS, Jaipur, PB B.Sc Nursing Entrance-2020

Explanation

Bitot's spots are a hallmark sign of Vitamin A deficiency, particularly in young children.
They are defined as triangular, pearly-white or yellowish, foamy spots on the bulbar conjunctiva.
Vitamin A is essential for maintaining the integrity of epithelial tissues. Its deficiency leads to squamous metaplasia and keratinization of the conjunctiva, forming these spots.
The presence of Bitot's spots is part of a spectrum of eye conditions called xerophthalmia, which can progress to night blindness and permanent blindness if untreated.

Option B: Deficiencies in the Vitamin B complex cause a range of conditions like Beriberi (Thiamine/B1), Pellagra (Niacin/B3), or megaloblastic anemia (Folate/B9 or Cobalamin/B12), but they do not cause Bitot's spots.
Option C: Vitamin C deficiency causes scurvy, which is characterized by impaired collagen synthesis. This leads to symptoms like bleeding gums, poor wound healing, and petechiae (small skin hemorrhages), not ocular signs like Bitot's spots.
Option D: Vitamin D deficiency affects calcium and phosphate metabolism, leading to impaired bone mineralization. In children, this results in rickets, characterized by skeletal deformities like bowed legs and a 'rickety rosary' on the chest.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Clinical signs of Vitamin A deficiency as background academic context rather than a clinical decision trigger.
Recognizing Bitot's spots is a critical nursing assessment skill in pediatric and community health settings, as it is an early warning sign of a serious nutritional deficiency.
Early identification and treatment with high-dose Vitamin A can reverse the condition and prevent irreversible blindness from keratomalacia (corneal melting).
Nurses play a key role in India's national Vitamin A prophylaxis program, which involves administering prophylactic doses of Vitamin A to children under five to prevent deficiency.

How to Approach the Question

First, identify the key term in the question stem, which is 'Bitot’s spots'.
This is a factual recall question that tests knowledge of specific clinical signs of nutritional deficiencies.
Access your memory or knowledge base to link the specific sign (Bitot's spots) to the causative deficiency.
Systematically evaluate the options. Recall the primary deficiency disease for each vitamin: Vitamin A (Xerophthalmia), Vitamin B complex (e.g., Beriberi, Pellagra), Vitamin C (Scurvy), and Vitamin D (Rickets).
Confirm that Bitot's spots are a manifestation of Xerophthalmia, which is caused by Vitamin A deficiency.
Select the option that correctly links the sign to the deficiency.

Concept Tested & Keywords

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E6 Parks TextBook of Preventive & Social Medicine part 2 — Subpart A (pp 1-232 of 464) p. 151-153

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