Friday, August 2, 2013

Clients with Fluid Imbalance (notes)


Medical Surgical Volume 1
MY NOTES
(August 2, 2013 – Friday)

Unit 3 – Foundation of Medical Surgical Nursing
Chapter 11 - Clients with Fluid Imbalances

-body Fluid Compartments and Exchange
-water – major body component – 60% of adult body weight
-body gains water by eating, drinking and metabolism
-water is lost as urine, feces, sweat, tears and from respiration and skin surface
-sweat and saliva are dilute, hypotonic fluids
Most of other fluids in the body are isotonic and have an osmolarity close to that of plasma
-water must cross an epithelial cell barrier (skin, respiratory tract or gastrointestinal tract) to enter or exit the body
Within the body, water is in 2 compartments:
1. 2/3 of the body water is within the cells (intracellular fluid)
2. 1/3 of the body water is outside the cell (extracellular fluid)

-water can cross freely the cell membrane and move from one compartment to the other
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