Nutrition · NEET PG Preparation Community Medicine (PSM)
A 3-year-old child presents with night blindness and Bitot spots on the bulbar conjunctiva. According to the WHO classification of xerophthalmia, wha…
Practice question from Nutrition (NEET PG Preparation Community Medicine (PSM)), with the correct answer and a step-by-step solution.
medium · MCQ · Q-1FE6FF
A 3-year-old child presents with night blindness and Bitot spots on the bulbar conjunctiva. According to the WHO classification of xerophthalmia, what is the correct grading for Bitot spots?
- A.XN
- B.X1A
- C.X1BCorrect answer
- D.X2
Solution
The WHO classification of xerophthalmia grades clinical signs as follows: XN = Night blindness, X1A = Conjunctival xerosis, X1B = Bitot spots, X2 = Corneal xerosis, X3A = Corneal ulceration/keratomalacia involving less than 1/3 of the cornea, X3B = Corneal ulceration/keratomalacia involving 1/3 or more of the cornea, XS = Corneal scar, XF = Xerophthalmic fundus.
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