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$\\var{v}$ mL of a fluid is to be infused over $\\var{h}$ hours using a microdrop giving set which delivers $\\var{dropfactor}$ drops/mL. Calculate the required drip rate in drops per minute.

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[[0]] dpm (to the nearest whole number)

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Evaluate the following without using a calculator.

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If you are unsure of how to do a question, click on Reveal answers to see the full working. Then, once you understand how to do the question, click on Try another question like this one to start again.

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\\begin{align}\\text{drip rate (dpm)}&=\\frac{\\text{drops}}{\\text{minutes}}\\\\&= \\frac{\\text{volume (mL)}\\times \\text{drop factor (drops/mL)}}{\\text{hours (hr)}\\times 60 \\text{ (min/hr)}}\\\\&=\\frac{\\var{v} \\text{ mL}\\times \\var{dropfactor} \\text{ drops/mL}}{\\var{h} \\text{ hr}\\times 60 \\text{ min/hr}}\\\\&=\\frac{\\var{v} \\text{ drops}}{\\var{h} \\text{ min}}\\\\&=\\var{dpmrounded} \\text{ drops/min (to the nearest whole number)}\\end{align}

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\\begin{align}\\text{drip rate (dpm)}&=\\frac{\\text{drops}}{\\text{minutes}}\\\\&= \\frac{\\text{volume (mL)}\\times \\text{drop factor (drops/mL)}}{\\text{hours (hr)}\\times 60 \\text{ (min/hr)}}\\\\&=\\frac{\\var{v} \\text{ mL}\\times \\var{dropfactor} \\text{ drops/mL}}{\\var{h} \\text{ hr}\\times 60 \\text{ min/hr}}\\\\&=\\frac{\\var{v} \\text{ drops}}{\\var{h} \\text{ min}}\\\\&=\\var{dpmrounded} \\text{ drops/min}\\end{align}

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