TheoryHESI A2 Practice Test Video
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Q1A patient needs to take 3/4 of a 500 mg tablet twice daily. How many milligrams does the patient receive per day?
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✓ Correct answer: 750 mg
3/4 of 500 mg = 375 mg per dose; twice daily gives 375 × 2 = 750 mg total.
Q2A nurse converts 2.5 liters to milliliters. What is the correct result?
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✓ Correct answer: 2500 mL
There are 1000 mL per liter, so 2.5 × 1000 = 2500 mL.
Q3A patient weighs 176 pounds. Using the conversion 2.2 lb = 1 kg, what is the patient's weight in kilograms?
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✓ Correct answer: 80 kg
176 ÷ 2.2 = 80 kg exactly, since 80 × 2.2 = 176.
Q4A stock solution contains 250 mg of medication in every 5 mL. What is the concentration in mg per mL?
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✓ Correct answer: 50 mg/mL
250 mg ÷ 5 mL = 50 mg/mL; dividing total amount by total volume yields unit concentration.
Q5A recipe requires a 3:5 ratio of sugar to flour. If 18 grams of sugar are used, how many grams of flour are needed?
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✓ Correct answer: 30 g
Setting up the proportion 3/5 = 18/x gives x = (18 × 5) ÷ 3 = 30 g of flour.
Q6An IV bag holds 500 mL and must infuse over 4 hours. How many milliliters per minute should the pump deliver (rounded to the nearest hundredth)?
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✓ Correct answer: 2.08 mL/min
500 mL ÷ (4 hr × 60 min/hr) = 500 ÷ 240 ≈ 2.08 mL/min.
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