What are the mechanisms of pediatric dehydration?

Updated: Nov 12, 2018
  • Author: Alex Koyfman, MD; Chief Editor: Muhammad Waseem, MS, MBBS, FAAP, FACEP, FAHA  more...
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The mechanisms of dehydration may be broadly divided into 3 categories: (1) decreased intake  e.g. due to diseases such as stomatitis, (2) increased fluid output  e.g. from diarrhea or osmotic diuresis from uncontrolled diabetes mellitus, and (3) increased insensible losses e.g. such as with fever.

Pediatric dehydration is frequently the result of increased output from gastroenteritis, characterized by vomiting and diarrhea. [3] However, vomiting and diarrhea may be caused by other processes as summarized below.

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