Health Calculations Practice Test
Basic Math Review
A patient is prescribed 500 mg of a medication. The available tablets are 250 mg each. How many tablets should be administered?
a) 1 tablet
b) 2 tablets
c) 3 tablets
d) 4 tablets
Answer: b) 2 tablets
Explanation: 500 mg÷250 mg/tablet=2 tablets500 \text{ mg} \div 250 \text{ mg/tablet} = 2 \text{ tablets}500 mg÷250 mg/tablet=2 tablets.
A physician orders 0.25 L of IV fluid. How many milliliters is this?
a) 25 mL
b) 100 mL
c) 250 mL
d) 500 mL
Answer: c) 250 mL
Explanation: 1 L=1000 mL1 \text{ L} = 1000 \text{ mL}1 L=1000 mL, so 0.25×1000=250 mL0.25 \times 1000 = 250 \text{ mL}0.25×1000=250 mL.
Convert 3.5 grams to milligrams.
a) 35 mg
b) 350 mg
c) 3,500 mg
d) 35,000 mg
Answer: c) 3,500 mg
Explanation: 1 g=1000 mg1 \text{ g} = 1000 \text{ mg}1 g=1000 mg, so 3.5×1000=3500 mg3.5 \times 1000 = 3500 \text{ mg}3.5×1000=3500 mg.
The doctor orders 1.2 grams of medication. How many milligrams should be administered?
a) 120 mg
b) 1,200 mg
c) 12,000 mg
d) 120,000 mg
Answer: b) 1,200 mg
Explanation: 1 g=1000 mg1 \text{ g} = 1000 \text{ mg}1 g=1000 mg, so 1.2×1000=1200 mg1.2 \times 1000 = 1200 \text{ mg}1.2×1000=1200 mg.
Convert 750 mL to liters.
a) 0.75 L
b) 7.5 L
c) 75 L
d) 0.0075 L
Answer: a) 0.75 L
Explanation: 1 L=1000 mL1 \text{ L} = 1000 \text{ mL}1 L=1000 mL, so 750÷1000=0.75 L750 \div 1000 = 0.75 \text{ L}750÷1000=0.75 L.
Dosage Calculations
A child weighs 44 pounds. Convert this to kilograms.
a) 20 kg
b) 44 kg
c) 22 kg
d) 88 kg
Answer: a) 20 kg
Explanation: 1 kg=2.2 lbs1 \text{ kg} = 2.2 \text{ lbs}1 kg=2.2 lbs, so 44÷2.2=20 kg44 \div 2.2 = 20 \text{ kg}44÷2.2=20 kg.
A medication is prescribed at 4 mg/kg for a patient weighing 50 kg. How many mg should be given?
a) 100 mg
b) 150 mg
c) 200 mg
d) 250 mg
Answer: c) 200 mg
Explanation: 4×50=200 mg4 \times 50 = 200 \text{ mg}4×50=200 mg.
A nurse needs to administer 1.5 mg/kg of a drug to a patient weighing 80 kg. What is the total dose?
a) 120 mg
b) 100 mg
c) 80 mg
d) 150 mg
Answer: d) 150 mg
Explanation: 1.5×80=120 mg1.5 \times 80 = 120 \text{ mg}1.5×80=120 mg.
IV Flow Rate Calculations
A physician orders 1000 mL of IV fluid to be given over 8 hours. What is the flow rate in mL per hour?
a) 80 mL/hr
b) 100 mL/hr
c) 125 mL/hr
d) 150 mL/hr
Answer: c) 125 mL/hr
Explanation: 1000 mL÷8 hr=125 mL/hr1000 \text{ mL} \div 8 \text{ hr} = 125 \text{ mL/hr}1000 mL÷8 hr=125 mL/hr.
An IV infusion is ordered at 50 mL/hr. How many mL will be given over 4 hours?
a) 100 mL
b) 150 mL
c) 200 mL
d) 250 mL
Answer: c) 200 mL
Explanation: 50 mL/hr×4=200 mL50 \text{ mL/hr} \times 4 = 200 \text{ mL}50 mL/hr×4=200 mL.
Medication Administration
A vial contains 10 mg/mL of medication. The order is for 25 mg. How many mL should be drawn?
a) 1.5 mL
b) 2.5 mL
c) 5 mL
d) 10 mL
Answer: b) 2.5 mL
Explanation: 25 mg÷10 mg/mL=2.5 mL25 \text{ mg} \div 10 \text{ mg/mL} = 2.5 \text{ mL}25 mg÷10 mg/mL=2.5 mL.
A patient needs 60 mg of a drug. The available dose is 30 mg per tablet. How many tablets are required?
a) 1 tablet
b) 2 tablets
c) 3 tablets
d) 4 tablets
Answer: b) 2 tablets
Explanation: 60 mg÷30 mg/tablet=2 tablets60 \text{ mg} \div 30 \text{ mg/tablet} = 2 \text{ tablets}60 mg÷30 mg/tablet=2 tablets.
Additional Questions
Convert 500 mcg to mg.
a) 0.05 mg
b) 0.5 mg
c) 5 mg
d) 50 mg
Answer: b) 0.5 mg
Explanation: 1000 mcg=1 mg1000 \text{ mcg} = 1 \text{ mg}1000 mcg=1 mg, so 500÷1000=0.5 mg500 \div 1000 = 0.5 \text{ mg}500÷1000=0.5 mg.
A medication order reads 250 mg every 6 hours. How many mg will the patient receive in 24 hours?
a) 500 mg
b) 750 mg
c) 1000 mg
d) 1250 mg
Answer: c) 1000 mg
Explanation: 250×4=1000 mg250 \times 4 = 1000 \text{ mg}250×4=1000 mg.
A drug is supplied as 20 mg/mL. The order is for 80 mg. How many mL should be administered?
a) 2 mL
b) 3 mL
c) 4 mL
d) 5 mL
Answer: c) 4 mL
Explanation: 80 mg÷20 mg/mL=4 mL80 \text{ mg} \div 20 \text{ mg/mL} = 4 \text{ mL}80 mg÷20 mg/mL=4 mL.
Metric and Household Conversions
Convert 2.5 L to milliliters.
a) 250 mL
b) 2,500 mL
c) 25,000 mL
d) 250,000 mL
Answer: b) 2,500 mL
Explanation: 1 L=1000 mL1 \text{ L} = 1000 \text{ mL}1 L=1000 mL, so 2.5×1000=2500 mL2.5 \times 1000 = 2500 \text{ mL}2.5×1000=2500 mL.
Convert 3 teaspoons (tsp) to milliliters (mL).
a) 5 mL
b) 10 mL
c) 15 mL
d) 30 mL
Answer: c) 15 mL
Explanation: 1 tsp=5 mL1 \text{ tsp} = 5 \text{ mL}1 tsp=5 mL, so 3×5=15 mL3 \times 5 = 15 \text{ mL}3×5=15 mL.
How many tablespoons (Tbsp) are in 30 mL?
a) 1 Tbsp
b) 2 Tbsp
c) 3 Tbsp
d) 4 Tbsp
Answer: b) 2 Tbsp
Explanation: 1 Tbsp=15 mL1 \text{ Tbsp} = 15 \text{ mL}1 Tbsp=15 mL, so 30÷15=2 Tbsp30 \div 15 = 2 \text{ Tbsp}30÷15=2 Tbsp.
Convert 1.5 grams to milligrams.
a) 150 mg
b) 1,500 mg
c) 15,000 mg
d) 150,000 mg
Answer: b) 1,500 mg
Explanation: 1 g=1000 mg1 \text{ g} = 1000 \text{ mg}1 g=1000 mg, so 1.5×1000=1500 mg1.5 \times 1000 = 1500 \text{ mg}1.5×1000=1500 mg.
Dosage by Body Weight
A medication is ordered as 8 mg/kg for a child who weighs 25 kg. How many mg should be administered?
a) 150 mg
b) 200 mg
c) 250 mg
d) 300 mg
Answer: b) 200 mg
Explanation: 8×25=200 mg8 \times 25 = 200 \text{ mg}8×25=200 mg.
A doctor prescribes 0.5 mg per pound for a patient weighing 154 lbs. How many mg should be administered?
a) 50 mg
b) 77 mg
c) 100 mg
d) 125 mg
Answer: b) 77 mg
Explanation: 0.5×154=77 mg0.5 \times 154 = 77 \text{ mg}0.5×154=77 mg.
A child weighing 30 kg needs a medication dose of 1.5 mg/kg. How much medication should be administered?
a) 30 mg
b) 45 mg
c) 50 mg
d) 60 mg
Answer: b) 45 mg
Explanation: 1.5×30=45 mg1.5 \times 30 = 45 \text{ mg}1.5×30=45 mg.
IV Flow Rate and Infusion Calculations
A nurse needs to infuse 500 mL of IV fluid over 4 hours. What is the flow rate in mL per hour?
a) 100 mL/hr
b) 125 mL/hr
c) 150 mL/hr
d) 200 mL/hr
Answer: b) 125 mL/hr
Explanation: 500÷4=125 mL/hr500 \div 4 = 125 \text{ mL/hr}500÷4=125 mL/hr.
An IV order is for 1,500 mL over 12 hours. What is the hourly infusion rate?
a) 100 mL/hr
b) 125 mL/hr
c) 150 mL/hr
d) 175 mL/hr
Answer: b) 125 mL/hr
Explanation: 1500÷12=125 mL/hr1500 \div 12 = 125 \text{ mL/hr}1500÷12=125 mL/hr.
A nurse needs to administer 750 mL over 6 hours. What is the infusion rate?
a) 100 mL/hr
b) 110 mL/hr
c) 120 mL/hr
d) 125 mL/hr
Answer: a) 100 mL/hr
Explanation: 750÷6=100 mL/hr750 \div 6 = 100 \text{ mL/hr}750÷6=100 mL/hr.
An IV is set to infuse at 50 mL/hr. How long will it take to infuse 600 mL?
a) 10 hours
b) 12 hours
c) 15 hours
d) 20 hours
Answer: b) 12 hours
Explanation: 600÷50=12 hours600 \div 50 = 12 \text{ hours}600÷50=12 hours.
Medication Dosage and Injection Calculations
A medication is available as 5 mg/mL, and the order is for 20 mg. How many mL should be administered?
a) 2 mL
b) 3 mL
c) 4 mL
d) 5 mL
Answer: c) 4 mL
Explanation: 20÷5=4 mL20 \div 5 = 4 \text{ mL}20÷5=4 mL.
A vial contains 50 mg/2 mL of a drug. The doctor orders 25 mg. How many mL should be drawn up?
a) 0.5 mL
b) 1.0 mL
c) 1.5 mL
d) 2.0 mL
Answer: b) 1.0 mL
Explanation: 50 mg=2 mL50 \text{ mg} = 2 \text{ mL}50 mg=2 mL, so 25 mg=1.0 mL25 \text{ mg} = 1.0 \text{ mL}25 mg=1.0 mL.
A patient is prescribed 250 mg of a drug that is available as 125 mg per 5 mL. How many mL should be given?
a) 5 mL
b) 10 mL
c) 15 mL
d) 20 mL
Answer: b) 10 mL
Explanation: 250÷125=2250 \div 125 = 2250÷125=2 doses of 5 mL5 \text{ mL}5 mL, so 2×5=10 mL2 \times 5 = 10 \text{ mL}2×5=10 mL.
A nurse must administer 0.75 mg of a drug available in 1 mg per mL concentration. How many mL should be drawn up?
a) 0.25 mL
b) 0.50 mL
c) 0.75 mL
d) 1.0 mL
Answer: c) 0.75 mL
Explanation: 0.75 mg=0.75 mL0.75 \text{ mg} = 0.75 \text{ mL}0.75 mg=0.75 mL because 1 mg=1 mL1 \text{ mg} = 1 \text{ mL}1 mg=1 mL.
Set 2
Basic Math and Measurement Conversions
Convert 0.75 grams to milligrams.
a) 750 mg
b) 75 mg
c) 7.5 mg
d) 0.075 mg
Answer: a) 750 mg
Explanation: 1 g=1000 mg1 \text{ g} = 1000 \text{ mg}1 g=1000 mg, so 0.75×1000=750 mg0.75 \times 1000 = 750 \text{ mg}0.75×1000=750 mg.
How many milliliters are in 0.25 liters?
a) 250 mL
b) 25 mL
c) 2.5 mL
d) 0.025 mL
Answer: a) 250 mL
Explanation: 1 L=1000 mL1 \text{ L} = 1000 \text{ mL}1 L=1000 mL, so 0.25×1000=250 mL0.25 \times 1000 = 250 \text{ mL}0.25×1000=250 mL.
Convert 1.2 kilograms to grams.
a) 120 g
b) 1,200 g
c) 12,000 g
d) 120,000 g
Answer: b) 1,200 g
Explanation: 1 kg=1000 g1 \text{ kg} = 1000 \text{ g}1 kg=1000 g, so 1.2×1000=1200 g1.2 \times 1000 = 1200 \text{ g}1.2×1000=1200 g.
Convert 4 tablespoons (Tbsp) to milliliters.
a) 20 mL
b) 30 mL
c) 45 mL
d) 60 mL
Answer: d) 60 mL
Explanation: 1 Tbsp=15 mL1 \text{ Tbsp} = 15 \text{ mL}1 Tbsp=15 mL, so 4×15=60 mL4 \times 15 = 60 \text{ mL}4×15=60 mL.
Dosage Calculation Based on Body Weight
A doctor orders 6 mg/kg of a medication for a 35 kg child. What is the total dose?
a) 140 mg
b) 180 mg
c) 210 mg
d) 250 mg
Answer: c) 210 mg
Explanation: 6×35=210 mg6 \times 35 = 210 \text{ mg}6×35=210 mg.
A child weighing 22 kg needs an antibiotic at 10 mg/kg/day divided into two doses. How much should be given per dose?
a) 110 mg
b) 120 mg
c) 150 mg
d) 220 mg
Answer: a) 110 mg
Explanation: 10×22=220 mg/day10 \times 22 = 220 \text{ mg/day}10×22=220 mg/day, divided by 2 = 110 mg per dose.
Oral and Injection Medication Calculations
A patient needs 500 mg of a drug. The available medication is 250 mg per tablet. How many tablets should be given?
a) 1 tablet
b) 2 tablets
c) 3 tablets
d) 4 tablets
Answer: b) 2 tablets
Explanation: 500÷250=2500 \div 250 = 2500÷250=2 tablets.
A nurse needs to administer 15 mg of a drug available in 5 mg/mL. How many mL should be given?
a) 1 mL
b) 2 mL
c) 3 mL
d) 4 mL
Answer: c) 3 mL
Explanation: 15÷5=3 mL15 \div 5 = 3 \text{ mL}15÷5=3 mL.
IV Flow Rate Calculations
A nurse must administer 1,200 mL of IV fluid over 8 hours. What is the infusion rate in mL per hour?
a) 100 mL/hr
b) 125 mL/hr
c) 150 mL/hr
d) 200 mL/hr
Answer: b) 125 mL/hr
Explanation: 1200÷8=125 mL/hr1200 \div 8 = 125 \text{ mL/hr}1200÷8=125 mL/hr.
An order is for 500 mL of IV fluid to run over 4 hours. The tubing delivers 20 gtt/mL. What is the drip rate in gtt/min?
a) 30 gtt/min
b) 42 gtt/min
c) 50 gtt/min
d) 60 gtt/min
Answer: b) 42 gtt/min
Explanation: (500×20)÷(4×60)=42 gtt/min(500 \times 20) \div (4 \times 60) = 42 \text{ gtt/min}(500×20)÷(4×60)=42 gtt/min.
Insulin and Heparin Calculations
A patient is prescribed 40 units of insulin. The vial contains 100 units/mL. How many mL should be drawn up?
a) 0.2 mL
b) 0.4 mL
c) 0.6 mL
d) 0.8 mL
Answer: b) 0.4 mL
Explanation: 40÷100=0.4 mL40 \div 100 = 0.4 \text{ mL}40÷100=0.4 mL.
A patient is to receive 5000 units of heparin from a vial containing 10,000 units/mL. How many mL should be given?
a) 0.25 mL
b) 0.5 mL
c) 0.75 mL
d) 1 mL
Answer: b) 0.5 mL
Explanation: 5000÷10000=0.5 mL5000 \div 10000 = 0.5 \text{ mL}5000÷10000=0.5 mL.
Pediatric Medication Dosage
A doctor prescribes amoxicillin at 20 mg/kg/day for a child weighing 15 kg. What is the total daily dose?
a) 150 mg
b) 200 mg
c) 300 mg
d) 400 mg
Answer: c) 300 mg
Explanation: 20×15=300 mg/day20 \times 15 = 300 \text{ mg/day}20×15=300 mg/day.
A child weighing 12 kg needs acetaminophen at 15 mg/kg per dose. How much should be administered?
a) 120 mg
b) 150 mg
c) 180 mg
d) 200 mg
Answer: c) 180 mg
Explanation: 15×12=180 mg15 \times 12 = 180 \text{ mg}15×12=180 mg.
Fluid Maintenance Calculation
A patient needs a maintenance fluid rate of 4 mL/kg/hr. If they weigh 70 kg, how much fluid should they receive per hour?
a) 140 mL/hr
b) 210 mL/hr
c) 280 mL/hr
d) 350 mL/hr
Answer: c) 280 mL/hr
Explanation: 4×70=280 mL/hr4 \times 70 = 280 \text{ mL/hr}4×70=280 mL/hr.
Set 3
Conversions and Basic Math Calculations
Convert 2.5 grams to milligrams.
a) 250 mg
b) 2,500 mg
c) 25,000 mg
d) 0.025 mg
Answer: b) 2,500 mg
Explanation: 1 g=1000 mg1 \text{ g} = 1000 \text{ mg}1 g=1000 mg, so 2.5×1000=2500 mg2.5 \times 1000 = 2500 \text{ mg}2.5×1000=2500 mg.
How many teaspoons are in 30 mL?
a) 2 tsp
b) 4 tsp
c) 6 tsp
d) 8 tsp
Answer: c) 6 tsp
Explanation: 1 tsp=5 mL1 \text{ tsp} = 5 \text{ mL}1 tsp=5 mL, so 30÷5=6 tsp30 \div 5 = 6 \text{ tsp}30÷5=6 tsp.
Convert 0.3 L to milliliters.
a) 30 mL
b) 300 mL
c) 3,000 mL
d) 30,000 mL
Answer: b) 300 mL
Explanation: 1 L=1000 mL1 \text{ L} = 1000 \text{ mL}1 L=1000 mL, so 0.3×1000=300 mL0.3 \times 1000 = 300 \text{ mL}0.3×1000=300 mL.
Dosage Calculations
A physician orders 750 mg of a medication. It is available in 250 mg tablets. How many tablets should be given?
a) 1 tablet
b) 2 tablets
c) 3 tablets
d) 4 tablets
Answer: c) 3 tablets
Explanation: 750÷250=3750 \div 250 = 3750÷250=3 tablets.
A nurse needs to administer 400 mg of a drug. The available strength is 100 mg per 2 mL. How many mL should be given?
a) 4 mL
b) 6 mL
c) 8 mL
d) 10 mL
Answer: c) 8 mL
Explanation: 400÷100=4400 \div 100 = 4400÷100=4 doses, and each dose is 2 mL, so 4×2=8 mL4 \times 2 = 8 \text{ mL}4×2=8 mL.
IV Flow Rate Calculations
An IV is ordered to run at 80 mL/hr for 6 hours. What total volume will be infused?
a) 240 mL
b) 360 mL
c) 480 mL
d) 600 mL
Answer: c) 480 mL
Explanation: 80×6=480 mL80 \times 6 = 480 \text{ mL}80×6=480 mL.
An IV order is for 1,500 mL to be infused over 12 hours. What is the infusion rate in mL per hour?
a) 100 mL/hr
b) 125 mL/hr
c) 150 mL/hr
d) 175 mL/hr
Answer: b) 125 mL/hr
Explanation: 1500÷12=125 mL/hr1500 \div 12 = 125 \text{ mL/hr}1500÷12=125 mL/hr.
A physician orders 1000 mL of fluid over 8 hours. The tubing delivers 15 gtt/mL. What is the drip rate in gtt/min?
a) 25 gtt/min
b) 31 gtt/min
c) 35 gtt/min
d) 45 gtt/min
Answer: b) 31 gtt/min
Explanation:
(1000×15)÷(8×60)=31 gtt/min(1000 \times 15) \div (8 \times 60) = 31 \text{ gtt/min}(1000×15)÷(8×60)=31 gtt/min
Pediatric Medication Dosages
A child weighs 10 kg and needs a medication at 5 mg/kg per dose. How much medication should be given?
a) 20 mg
b) 40 mg
c) 50 mg
d) 60 mg
Answer: c) 50 mg
Explanation: 10×5=50 mg10 \times 5 = 50 \text{ mg}10×5=50 mg.
A doctor prescribes 15 mg/kg/day of a drug for a child weighing 30 kg. What is the total daily dose?
a) 300 mg
b) 450 mg
c) 500 mg
d) 600 mg
Answer: b) 450 mg
Explanation: 15×30=450 mg15 \times 30 = 450 \text{ mg}15×30=450 mg.
Insulin and Heparin Calculations
A patient is prescribed 50 units of insulin. The vial contains 100 units/mL. How many mL should be drawn?
a) 0.25 mL
b) 0.5 mL
c) 0.75 mL
d) 1 mL
Answer: b) 0.5 mL
Explanation: 50÷100=0.5 mL50 \div 100 = 0.5 \text{ mL}50÷100=0.5 mL.
A patient requires 7,500 units of heparin. The vial contains 10,000 units/mL. How many mL should be given?
a) 0.25 mL
b) 0.5 mL
c) 0.75 mL
d) 1 mL
Answer: c) 0.75 mL
Explanation: 7500÷10000=0.75 mL7500 \div 10000 = 0.75 \text{ mL}7500÷10000=0.75 mL.
Fluid Maintenance and Electrolyte Calculations
A patient needs a maintenance fluid rate of 3 mL/kg/hr. If they weigh 80 kg, how much fluid should they receive per hour?
a) 160 mL/hr
b) 200 mL/hr
c) 240 mL/hr
d) 300 mL/hr
Answer: c) 240 mL/hr
Explanation: 3×80=240 mL/hr3 \times 80 = 240 \text{ mL/hr}3×80=240 mL/hr.
A doctor orders 500 mL of 0.9% sodium chloride to run over 5 hours. What is the rate in mL/hr?
a) 80 mL/hr
b) 100 mL/hr
c) 120 mL/hr
d) 150 mL/hr
Answer: b) 100 mL/hr
Explanation: 500÷5=100 mL/hr500 \div 5 = 100 \text{ mL/hr}500÷5=100 mL/hr.
Set 4
Basic Math and Conversions
Convert 2.75 grams to milligrams.
a) 275 mg
b) 2,750 mg
c) 27,500 mg
d) 275,000 mg
Answer: b) 2,750 mg
Convert 500 mL to liters.
a) 0.05 L
b) 0.5 L
c) 5 L
d) 50 L
Answer: b) 0.5 L
Convert 180 pounds to kilograms.
a) 81.8 kg
b) 82 kg
c) 90 kg
d) 100 kg
Answer: a) 81.8 kg
Convert 3 ounces to milliliters.
a) 30 mL
b) 60 mL
c) 90 mL
d) 120 mL
Answer: c) 90 mL
A doctor orders 1.5 teaspoons of medication. How many milliliters should be given?
a) 5 mL
b) 7.5 mL
c) 10 mL
d) 15 mL
Answer: b) 7.5 mL
Oral Medication Dosage Calculations
A doctor prescribes 400 mg of a drug. The available tablets are 100 mg each. How many tablets should be given?
a) 2 tablets
b) 3 tablets
c) 4 tablets
d) 5 tablets
Answer: c) 4 tablets
A patient is prescribed 1.2 g of an antibiotic. The pharmacy has 600 mg tablets. How many tablets should be given?
a) 1 tablet
b) 2 tablets
c) 3 tablets
d) 4 tablets
Answer: b) 2 tablets
A doctor orders 10 mL of a liquid medication. The concentration is 50 mg per 5 mL. How many mg will the patient receive?
a) 50 mg
b) 100 mg
c) 150 mg
d) 200 mg
Answer: b) 100 mg
IV Flow Rate Calculations
An IV order is for 1,200 mL over 8 hours. What is the infusion rate in mL/hr?
a) 100 mL/hr
b) 125 mL/hr
c) 150 mL/hr
d) 200 mL/hr
Answer: b) 125 mL/hr
A patient requires 750 mL of fluid over 5 hours. What is the flow rate in mL/hr?
a) 100 mL/hr
b) 125 mL/hr
c) 150 mL/hr
d) 175 mL/hr
Answer: c) 150 mL/hr
An IV is set to deliver 1,500 mL in 10 hours. What is the flow rate in mL/hr?
a) 125 mL/hr
b) 150 mL/hr
c) 175 mL/hr
d) 200 mL/hr
Answer: a) 150 mL/hr
A 1,000 mL IV bag is set to run over 12 hours using 15 gtt/mL tubing. What is the drip rate in gtt/min?
a) 12 gtt/min
b) 21 gtt/min
c) 25 gtt/min
d) 30 gtt/min
Answer: b) 21 gtt/min
Pediatric Dosage Calculations
A child weighs 20 kg. The prescribed dose is 5 mg/kg. What is the correct dose?
a) 50 mg
b) 75 mg
c) 100 mg
d) 125 mg
Answer: c) 100 mg
A doctor orders 30 mg/kg/day of medication for a child weighing 15 kg. What is the total daily dose?
a) 300 mg
b) 350 mg
c) 400 mg
d) 450 mg
Answer: d) 450 mg
Insulin and Heparin Calculations
A patient is prescribed 40 units of insulin. The vial contains 100 units/mL. How many mL should be drawn?
a) 0.2 mL
b) 0.4 mL
c) 0.6 mL
d) 0.8 mL
Answer: b) 0.4 mL
A heparin drip is ordered at 1,200 units/hr. The IV bag contains 25,000 units in 500 mL. What is the flow rate in mL/hr?
a) 20 mL/hr
b) 24 mL/hr
c) 30 mL/hr
d) 36 mL/hr
Answer: b) 24 mL/hr
Miscellaneous Medication Calculations
A doctor orders 50 mg of a medication. The vial contains 25 mg/mL. How many mL should be administered?
a) 1 mL
b) 2 mL
c) 3 mL
d) 4 mL
Answer: b) 2 mL
A prescription is written for 375 mg of an antibiotic. The pharmacy provides 125 mg/5 mL suspension. How many mL should be given?
a) 5 mL
b) 10 mL
c) 15 mL
d) 20 mL
Answer: c) 15 mL
Fluid Maintenance Calculations
A patient requires maintenance IV fluids at 3 mL/kg/hr. If they weigh 60 kg, how much fluid should they receive per hour?
a) 150 mL/hr
b) 180 mL/hr
c) 200 mL/hr
d) 240 mL/hr
Answer: b) 180 mL/hr
A 2-year-old child requires maintenance fluids at 4 mL/kg/hr. The child weighs 12 kg. How much fluid is required per hour?
a) 24 mL/hr
b) 36 mL/hr
c) 48 mL/hr
d) 60 mL/hr
Answer: c) 48 mL/hr