The most reliable method for measuring body water or fluid volume increase is by assessing:
A) Tissue turgor
B) Intake and output
C) Body weight change
D) Serum sodium levels
Ans: C
Feedback:
Daily weights are a reliable index of water volume gain (1 L of water weighs 2.2 pounds). Daily weight measurements taken at the same time each day with the same amount of clothing provide a useful index of water gain due to edema. When an unbalanced distribution of body water exists in the tissues and organs, assessment of surface skin tissue turgor will be inaccurate. Measurement of renal output is unreliable because fluid retention may be a compensatory response, or the renal system may be dysfunctional. Serum sodium levels are affected by multiple variables other than body water volume.
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