IV Therapy Certification Prep Exam Questions & Answers 2026 (11–20)

Question 1

An IV pump is infusing at 80 mL/hr. After 5 hours, how many milliliters will have been infused?

TheoryPractice · Accepted Answer

400 mL. Multiply the infusion rate by the time: 80 mL/hr × 5 hours = 400 mL.

Question 2

A patient weighing 80 kg requires heparin at 18 units/kg/hr. The heparin concentration is 25,000 units in 500 mL. What is the infusion rate in mL/hr?

TheoryPractice · Accepted Answer

28.8 mL/hr. Calculate the dose: 80 kg × 18 units/kg/hr = 1440 units/hr. Calculate concentration: 25000 units in 500 mL = 50 units/mL. Calculate rate: 1440 units/hr divided by 50 units/mL = 28.8 mL/hr.

Question 3

An order reads: Infuse 750 mL over 6 hours using tubing with a drop factor of 15 gtt/mL. What is the drip rate in drops per minute?

TheoryPractice · Accepted Answer

31 gtt/min. Using the formula (Volume × Drop factor) divided by Time in minutes: (750 × 15) divided by 360 minutes = 11250 divided by 360 = 31.25, which rounds to 31 gtt/min.

Question 4

A medication is available as 0.5 mg/mL. The order is for 750 mcg. How many milliliters should be administered?

TheoryPractice · Accepted Answer

1.5 mL. First convert the order to the same units as the available concentration. 750 mcg = 0.75 mg. Set up proportion: 0.5 mg / 1 mL = 0.75 mg / X mL. Solve: X = 0.75 divided by 0.5 = 1.5 mL.

Question 5

An infusion of 250 mL is to be completed in 90 minutes. What is the infusion rate in mL/hr?

TheoryPractice · Accepted Answer

167 mL/hr. Convert minutes to hours: 90 minutes = 1.5 hours. Calculate rate: 250 mL divided by 1.5 hours = 166.67 mL/hr, which rounds to 167 mL/hr.

Question 6

A patient requires nitroglycerin at 10 mcg/min. The concentration is 50 mg in 250 mL. What is the infusion rate in mL/hr?

TheoryPractice · Accepted Answer

3 mL/hr. Convert dose to same units: 10 mcg/min = 0.01 mg/min. Convert to mg/hr: 0.01 × 60 = 0.6 mg/hr. Calculate concentration: 50 mg in 250 mL = 0.2 mg/mL. Calculate rate: 0.6 mg/hr divided by 0.2 mg/mL = 3 mL/hr.

Question 7

An IV bag contains 1000 mL. It has been infusing at 100 mL/hr for 3 hours. How much fluid remains in the bag?

TheoryPractice · Accepted Answer

700 mL. Calculate amount infused: 100 mL/hr × 3 hours = 300 mL. Subtract from total: 1000 mL - 300 mL = 700 mL remaining.

Question 8

A medication order is for 0.25 grams. The vial is labeled 500 mg/10 mL. How many milliliters should be drawn up?

TheoryPractice · Accepted Answer

5 mL. Convert grams to milligrams: 0.25 g = 250 mg. Determine concentration: 500 mg in 10 mL = 50 mg/mL. Calculate volume: 250 mg divided by 50 mg/mL = 5 mL.

Question 9

An infusion pump is set at 150 mL/hr. How many milliliters will infuse in 45 minutes?

TheoryPractice · Accepted Answer

112.5 mL. Convert time to hours: 45 minutes = 0.75 hours. Calculate volume: 150 mL/hr × 0.75 hours = 112.5 mL.

Question 10

A patient weighing 60 kg needs an antibiotic dosed at 40 mg/kg/day divided into three equal doses. How many milligrams should be given per dose?

TheoryPractice · Accepted Answer

800 mg. Calculate total daily dose: 60 kg × 40 mg/kg/day = 2400 mg/day. Divide by number of doses: 2400 mg divided by 3 doses = 800 mg per dose.

IV Therapy Certification Prep Exam Questions & Answers 2026 (11–20)

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