During the assessment of a preschool-age child, the nurse notes that the child's tongue is tender and there are cracks in the corners of the child's mouth. Which vitamin deficiency does the nurse suspect this child is experiencing?

Question

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A vitamin A deficiency is caused by a lack of yellow vegetables in the diet. Manifestations of this deficiency include a tender tongue and cracks at the corners of the mouth. Manifestations of a vitamin B₁ deficiency include beriberi, diarrhea, and vomiting. Manifestations of a vitamin C deficiency include muscle tenderness and petechiae. Manifestations of a vitamin D deficiency include poor muscle tone, delayed tooth formation, poor bone formation, swelling of the wrists and cartilage of ribs, bowed legs, and muscle spasms.

During the Assessment of a Preschool-Age Child, the Nurse Notes