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Hesi A2 Math Formulas, Conversions Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
A nurse needs to calculate the flow rate of IV fluids. The order is 1000 mL to run over 8 hours.✔✔Flow rate = 1000 ÷ 8 = 125 mL/hour
A patient weighs 150 pounds. Convert the weight to kilograms. (1 kg = 2.2 lbs) ✔✔Weight in kg = 150 ÷ 2.2 = 68.18 kg
A patient drinks 32 ounces of water per day. Convert this amount to milliliters. (1 oz = 30 mL) ✔✔Volume in mL = 32 × 30 = 960 mL
A medication order calls for 0.5 mg/kg. The patient weighs 70 kg. How many mg should be administered?✔✔Dose = 0.5 × 70 = 35 mg
A prescription is for 750 mg of a drug. The tablet strength is 250 mg. How many tablets are needed? 1 / 2
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✔✔Number of tablets = 750 ÷ 250 = 3
A nurse needs to prepare 500 mL of a 10% solution. How many grams of solute are required?✔✔Grams of solute = 500 × 0.10 = 50 g
A patient is to receive 20 mg of a drug. The concentration is 5 mg/mL. How many mL should be administered?✔✔Volume = 20 ÷ 5 = 4 mL
A nurse calculates body surface area (BSA) using the formula √(height in cm × weight in kg / 3600). The patient is 160 cm and weighs 60 kg.✔✔BSA = √(160 × 60 / 3600) = √(9600 / 3600) = √2.667 ≈ 1.63 m²
A medication is ordered at 15 mg/kg. The patient weighs 55 kg. How many mg should be administered?✔✔Dose = 15 × 55 = 825 mg
A prescription calls for 0.75 g of a drug. Convert grams to milligrams.
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