Multiple choice

Which of the following are vitamin A deficiency diseases?

  1. Keratomalacia
  2. Ariboflavinosis
  3. Pellagra
  4. Hyperkeratosis
  5. Nyctalopia Select the correct answer using codes given below:

  1. 1, 2 and 4

  2. 1, 4 and 5

  3. 2, 3 and 4

  4. 2, 3 and 5

  5. 3, 4 and 5
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Keratomalacia is an eye disorder that results from vitamin A deficiency. Hyperkeratosis is thickening of the stratum corneum. It can be caused by vitamin A deficiency or chronic exposure to arsenic. Nyctalopia (also known as night blindness) is a condition making it difficult or impossible to see in relatively low light. Night blindness may exist from birth, or be caused by injury or malnutrition (i.e. lack of vitamin A).

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