The principle of fluid balance states that fluid intake normally equals fluid output.

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The principle of fluid balance is that the amount of fluid entering the body (through drinking or food intake) should equal the amount of fluid leaving the body (through urine, sweat, and other bodily functions). This balance is necessary to maintain proper hydration and prevent dehydration or fluid overload. In rare cases, such as during illness or certain medical conditions, the balance may be disrupted, leading to issues like dehydration or edema. However, under normal circumstances, the principle of fluid balance remains true.

The Principle of Fluid Balance States That Fluid Intake Normally