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Calculates fluid balance from sodium concentrations which indicate net 0.9% saline, and free water losses (GI, urine, etc) and gains (IV fluids, PO, etc).
25 lip 2023 · Insensible fluid loss is the amount of body fluid lost daily that is not easily measured, from the respiratory system, skin, and water in the excreted stool. The exact amount is unmeasurable but is estimated to be between 40 to 800mL/day in the average adult without comorbidities. [2]
22 paź 2023 · Sensible losses pertain to conventional forms of excretion, such as urination and defecation, whereas insensible losses pertain to less obvious fluid expenditure, including sweating and respiratory evaporation.
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KEY POINT: This is loss of pure water: there is no associated solute loss. This solute-free water loss differs from sweating as sweat contains solutes. Insensible loss is different from sweating. Insensible loss from the skin cannot be eliminated. Daily loss is about 400 mls in an adult.
Insensible loss: 600–900 mL (lungs and skin). (With fever, each degree above 98.6°F [37°C] adds 2.5 mL/kg/d to insensible losses; insensible losses are decreased if a patient is undergoing mechanical ventilation; free water gain can occur from humidified ventilation.)
3 lis 2020 · we should divide fluid therapy into two components: replacement of fluid losses from the body via insensible perspiration (~500mL/24h), bowel motions (~200mL/24h) and urinary output (500-2000 mL/24h) and. replacement of plasma losses from the circulation due to fluid shifting or acute bleeding.
