In infants, the signs that suggest dehydration from decreased oral intake are a decreased number of wet diapers from the usual. The signs of dehydration in infants include the following: lethargy, sunken fontanelle, dry mucous membranes, tachycardia, tachypnea, and tented or doughy skin. In this scenario, the infant is crying and has moist mucous membranes. The anterior fontanelle is tense and bulging instead of sunken. Therefore, this infant is not dehydrated.
Marx: Rosen's Emergency Medicine: Concepts and Clinical Practice, 5th ed., Copyright © 2002 Mosby, Inc.
Chapter 166 - Infectious Diarrheal Disease and Dehydration.
Roger M. Barkin, David G. Ward. pp 2315--2316
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