Med math practice for nurses12/10/2023 This gives us the number of tablets required for the patient's dose (in reality, this often needs a little rounding to accommodate for tablet size, and how easy it is to divide the tablets). Here we multiply the dose (in mg/kg) by the patient's weight (in kg), then divide by the tablet size (in mg). When calculating tablets, the maths looks a little different. This will give you the volume of medication required for each dose. To calculate a dose of liquid medication (either via injection or an oral solution), simply multiply the dose (in mg/kg) by the patient's body weight (in kg), then divide by the concentration of the drug (in mg/ml). We need to know how to calculate basic drug volumes, convert units, work with percentage solutions and reconstitute and dilute medications. When it comes to drug calculations, there is a lot for the veterinary nurse to consider. Stay tuned as we walk through exactly how to perform all of the common calculations used in practice, so that you can do medical maths quickly, easily and without the headache in practice. I’ve found my own ways to make the maths make sense to me, and I’m here to show you how to do the same. In fact, it’s only been the last few years where I’ve really felt comfortable with calculations. Medical maths was not my strongest subject for most of my veterinary nursing journey. But I’m well aware they are not the most fun topic to learn - in fact, they can be pretty headache-inducing! Calculations are an essential part of our daily nursing life.
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