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Nursing dosage calculation practice
Master dosage calculation, one problem at a time.
Unlimited, automatically-generated practice problems across oral, IV, weight-based, and reconstitution dosing — every one with a full step-by-step dimensional-analysis solution. Free lessons, a free 10-problem set daily, and calculators for every shift.
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Dosage calculation lessons
Each type has a full explainer, its formula, worked examples, and common mistakes — free to read and share.
Oral tabletsOral tablet dosage calculationTablets = (Desired dose ÷ dose On hand) × Quantity per tabletOral liquidsOral liquid (suspension) dosage calculationVolume (mL) = (Desired dose ÷ dose On hand) × Quantity (mL)IV drip rate (gtt/min)IV drip rate calculation (gtt/min)gtt/min = (Volume mL ÷ Time min) × Drop factor (gtt/mL)IV flow rate (mL/hr)IV flow rate calculation (mL/hr)mL/hr = Volume (mL) ÷ Time (hr)IV infusion timeIV infusion time calculationTime (hr) = Volume (mL) ÷ Rate (mL/hr)Weight-based (mg/kg)Weight-based dosage calculation (mg/kg)Dose = Weight (kg) × ordered mg/kg (÷ doses per day if divided)ReconstitutionReconstitution dosage calculationVolume (mL) = Ordered dose (mg) ÷ Concentration after mixing (mg/mL)Weight-based IV infusionWeight-based IV infusion (mcg/kg/min to mL/hr)mL/hr = (ordered mcg/kg/min × weight kg × 60) ÷ concentration (mcg/mL)
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