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  • Title: Body fluid composition.
    Author: Jain A.
    Journal: Pediatr Rev; 2015 Apr; 36(4):141-50; quiz 151-2. PubMed ID: 25834218.
    Abstract:
    UNLABELLED: Body fluid composition is maintained in a normal physiologic range by regulatory mechanisms that control sodium and water metabolism. A detailed knowledge of the homeostatic mechanisms will help in understanding the pathogenesis and management of disorders of sodium and water balance. OBJECTIVES: After completing this article, readers should be able to: 1. Understand the distribution of fluid and solute in different body compartments. 2. Demonstrate the homeostatic mechanisms involved in maintaining sodium and water metabolism. 3. Calculate osmolality and recognize the clinical importance of maintaining osmotic equilibrium. 4. Recognize common disorders of hypernatremia or hyperosmolality and evaluate and understand the role of calculating free water deficit in the treatment of these disorders. 5. Recognize common disorders of hyponatremia or hypo-osmolality, appreciate the role of urine sodium and urine osmolality in evaluation,and understand the importance of slow correction of these disorders.
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