What is a common sign of dehydration in infants?

Prepare for the Pediatrics Examination and Assessment Questionnaire (EAQ) with multiple choice questions and detailed explanations. Enhance your knowledge and readiness for the exam with our engaging quiz!

Dehydration in infants can manifest through several distinct signs, and one of the most recognizable indicators is a dry mouth accompanied by decreased urination. Infants are particularly sensitive to fluid balance, as they have a higher body surface area relative to their weight, making them more prone to rapid fluid loss.

When an infant is dehydrated, the body conserves water, resulting in a dry mouth due to reduced saliva production. Additionally, because dehydration impacts kidney function and urine production, a noticeable decrease in urination occurs. Parents or caregivers may observe fewer wet diapers over a 24-hour period, which serves as a clear warning sign that the infant may be dehydrated.

While increased appetite, jaundice, and excessive sweating can be concerning in different contexts, they do not directly indicate dehydration in the same way that dry mouth and decreased urination do. Increased appetite can sometimes occur with certain illnesses, while jaundice typically relates to liver function rather than hydration status, and excessive sweating might suggest other conditions but is not a primary sign of dehydration in infants. Thus, recognizing the combination of dry mouth and decreased urination provides crucial insights into an infant's hydration state and the need for prompt care.

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