Nutrition & Immunisation · NEET PG Preparation Paediatrics
A 2-year-old child presents with night blindness, dryness of the conjunctiva, and the presence of triangular, foamy silvery-grey patches on the later…
Practice question from Nutrition & Immunisation (NEET PG Preparation Paediatrics), with the correct answer and a step-by-step solution.
hard · MCQ · Q-D6942C
A 2-year-old child presents with night blindness, dryness of the conjunctiva, and the presence of triangular, foamy silvery-grey patches on the lateral bulbar conjunctiva bilaterally. The pediatrician diagnoses Vitamin A deficiency. According to the WHO classification of xerophthalmia, what is the correct code for this specific ocular sign?
- A.XN
- B.X1A
- C.X1BCorrect answer
- D.X2
Solution
WHO classification of xerophthalmia: XN = Night blindness, X1A = Conjunctival xerosis (dry, muddy conjunctiva), X1B = Bitot's spots (foamy, triangular silvery-grey patches), X2 = Corneal xerosis, X3A = Corneal ulceration/keratomalacia affecting less than 1/3 of the cornea, X3B = Corneal ulceration/keratomalacia affecting 1/3 or more of the cornea, XS = Corneal scar, XF = Xerophthalmic fundus.
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