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K deficit (in mmol) = (K normal lower limit − K measured) × body weight (kg) × 0.4 Meanwhile, the daily body requirement of potassium is calculated by multiplying 1 mmol to body weight in kilograms. Adding potassium deficit and daily potassium requirement would give the total amount of potassium need to be corrected in mmol.
[3] [27] The final step in treatment is to calculate the patients free water deficit, and to replace it at a steady rate using a combination of oral or IV fluids. [3] [27] The rate of replacement of fluids varies depending on how long the patient has been hypernatremic. Lowering the sodium level too quickly can cause cerebral edema. [27]
Hopefully, patients will graduate to the medium dehydration or "some" dehydration category and receive continued treatment as above. [1] Inadequate replacement of potassium losses during diarrhea can lead to potassium depletion and hypokalaemia (low serum potassium) especially in children with malnutrition.
The WHO Model List of Essential Medicines for Children (aka Essential Medicines List for Children [1] or EMLc [1]), published by the World Health Organization (WHO), contains the medications considered to be most effective and safe in children up to twelve years of age to meet the most important needs in a health system.
The trans-tubular potassium gradient (TTKG) is an index reflecting the conservation of potassium in the cortical collecting ducts (CCD) of the kidneys. It is useful in diagnosing the causes of hyperkalemia or hypokalemia. [1] [2] The TTKG estimates the ratio of potassium in the lumen of the CCD to that in the peritubular capillaries.
Potassium deficiency has two different contexts: For the medical condition in humans, see hypokalemia; Potassium deficiency (plants), the disorder in plants
Metabolic alkalosis is an acid-base disorder in which the pH of tissue is elevated beyond the normal range (7.35–7.45). This is the result of decreased hydrogen ion concentration, leading to increased bicarbonate (HCO − 3), or alternatively a direct result of increased bicarbonate concentrations.
Potassium is the most abundant intracellular cation and about 98% of the body's potassium is found inside cells, with the remainder in the extracellular fluid including the blood. Membrane potential is maintained principally by the concentration gradient and membrane permeability to potassium with some contribution from the Na+/K+ pump .