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26 lis 2023 · In anesthetic practice, this formula has been further simplified, with the hourly requirement referred to as the “4-2-1 rule” (4 mL/kg/hr for the first 10 kg of weight, 2 mL/kg/hr for the next 10 kg, and 1 mL/kg/hr for each kilogram thereafter.
The 4 – 2 – 1 rule for maintenance IV fluid therapy (Normal Saline or Ringer’s Lactate): 4 ml/kg/hr for the first 10kg of body mass. 2 mg/kg/hr for the next 10 kg of body mass. 1 mg/kg/hr for body mass beyond 20kg. Reduce the rate by 40% in normovolemic children to prevent fluid overload.
22 paź 2023 · In many cases, a simple calculation called the 4-2-1 rule can determine the hourly rate of fluid maintenance required for a child based on their body weight. [13] The formula outlined below illustrates its application, where fluid maintenance rates are calculated based on the following criteria:
5 lip 2023 · Follow serum sodium, chloride, bicarbonate for possible hypernatremia, hyperchloremic metabolic acidosis, hyponatremia. Consider factors that indicate readiness to wean IV fluid (daily on rounds): At or approaching baseline mental status. Clinically stable or improving clinical status.
When rapid infusion needed, the first available isotonic fluid should be used. NS has hyper-physiological Na and Cl – may be useful for concerns of hyponatremia. Hypotonic solutions (0.45% saline, 0.2% saline, free water) should not be administered in a bolus dose.
The Maintenance Fluids Calculator calculates maintenance fluid requirements by weight. Based on Holliday-Segar method and the 4-2-1 rule.
Sometimes referred to colloquially as the “4-2-1 rule,” it is constructed as follows: For the first 10 kg of body weight, deliver 4 mL/kg/h of intravenous fluid. For every kg of body weight between 10 and 20 kg, deliver an additional 2 mL/kg/h.
