In the case of a child with severe dehydration, what percentage of body weight loss is indicative of 10% dehydration?

• A. 5%
• B. 10%
• C. 15%
• D. 20%

Answer: (B)

In understanding the concept of dehydration in children, it's important to recognize how percentage of body weight loss correlates with degrees of dehydration. A child is considered to have 10% dehydration when they have lost 10% of their total body weight.

For example, if a child weighs 20 kg (approximately 44 lbs), a 10% loss in body weight would mean they have lost 2 kg (approximately 4.4 lbs). This level of dehydration is classified as moderate to severe and can lead to significant physiological effects, which can be critical in a pediatric setting.

The other percentage options, such as 5%, 15%, and 20%, respectively represent different levels of dehydration: 5% indicates mild dehydration, 15% indicates severe dehydration, and 20% is a critical and potentially life-threatening level. Understanding these classifications is crucial for assessing a child's hydration status and determining appropriate interventions. Thus, identifying 10% as the correct answer aligns with established medical criteria for evaluating dehydration in pediatric patients.