Which statement regarding dehydration signs in toddlers is true?

• A. Dry mucous membranes are a common sign.
• B. Increased tear production.
• C. Moist mucous membranes.
• D. Normal fontanelle.

Answer: (A)

Dehydration in toddlers most clearly shows up as dry mucous membranes because reduced body fluids lower saliva and mucous secretions, making the mouth feel dry and the mucous membranes feel tacky. This drying of the mouth and lips is a common, early sign of fluid loss, so the statement is the best choice. Increased tear production would not occur with dehydration; tear production usually decreases, not increases. Moist mucous membranes point to adequate hydration rather than dehydration. A normal fontanelle isn’t a reliable sign of dehydration—if the fontanelle is still open, it can become sunken with fluid loss, so a normal fontanelle isn’t expected.