12/14/2023 0 Comments Iv maintenance fluid calculator500ml saline 0.9% with 20mmol K + (over 6 hours) + 1L dextrose 5% with 20mmol K + (over 10 hours) + 1L dextrose 5% with 20mmol K +(over 8 hours).1L dextrose-saline with 20mmol K + (over 10 hours) + 1L dextrose-saline with 20mmol K + (over 10 hours) + 500ml dextrose-saline (over 4 hours).Thus for a 70kg patient, maintenance regimens need to provide approximately 2.5L fluid, 70-140mmol Na +, and 35-70mmol K +). The fluids you give should always reflect the patient’s weight. This is only acceptable for a very large patient because it provides about 0.5L more water and more sodium than is required for an average patient. This gives 3L H 20, 154mmol Na + and 60mmol K +. 1L dextrose 5% + 20mmol potassium chloride (over 8 hours).1L saline 0.9% + 20mmol potassium chloride (over 8 hours).Note, there are problems with the traditional fluid regimen of ‘1 salty + 2 sweet’: By convention, bags are given over multiples of 2 hours. Calculate how much of all of these are needed and choose fluids which match these requirements closest. The type of fluid does not matter provided that, over 24 hours, it approximately matches the patient’s weight requirements of water, sodium and potassium. You will usually be giving fluids for either maintenance or replacement rather than both – but you need to be clear in your own head what you are doing! Maintenance fluids The type and quantity of maintenance fluid is based on the patient’s fluid and electrolyte requirements (dependent on their weight), and the type and quantity of replacement fluid is based on the type and quantity of fluid lost. When prescribing fluids, you need to be clear about what type of fluid you are prescribing, how much of it, and why. The different components of the above formula should be considered separately because each may need a different fluid prescribed.
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