This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Kallu 2 yrs child weighing 6.7 Kg presents in the casualty with history of vomiting and diarrohea for last 2 days. On examination skin pinch over the anterior abdominal wall go quickly to its original position. Interpretation of skin-pinch test in this child will be: 
Select and explain. 
A. No dehydration, B. Some dehydration, C. Sever dehydration, D. Skin pinch can not be evaluated in this child
D: Skin pinch can not be evaluated in this child
Answer: D: Skin pinch can not be evaluated in this child 
Explanation: Skin pinch is less useful in infants or children with marasmus (wasting) or kwashiorkor (severe malnutrition with edema), or obese children. Ref: Kliegman, Behrman, Jenson, Stanton, (2007), Chapter 85, "Fluid and Electrolyte Treatment of Specific Disorders", In the book, "Nelson's Textbook of Pediatrics", Volume 1, 18th Edition, New Delhi, Page 317