Category: Dosage Calculations
You need to administer 4 mg of morphine IV. You have a 1 mL vial containing 10 mg/mL. How many mL do you draw up?
What is 0.4 mL?
A patient weighs 150 lb. Convert to kilograms and calculate a dosage at 0.1 mg/kg.
What is 68 kg, therefore 6.8 mg?
A medication order: 500 mL NS over 4 hours. Calculate mL/hour drip rate.
What is 125 mL/hr?
You have a 10% dextrose solution (10 g per 100 mL). How many grams of dextrose in 250 mL?
What is 25 g?
Administration set: 20 gtt/mL. Drip order: 125 mL/hr. Calculate drops per minute (gtt/min).
What is ~42 gtt/min?
You must give 12.5 mg of diphenhydramine IV. Your vial is 50 mg in 1 mL. How many mL do you administer?
What is 0.25 mL?
A 20 kg patient needs a medication dosed at 0.05 mg/kg. How many milligrams should be given?
What is 1 mg?
You must infuse 250 mL over 2 hours. What is the drip rate in mL/hr?
What is 125 mL/hr?
A vial contains 25 mg of medication in 5 mL. What is the concentration in mg/mL?
What is 5 mg/mL?
You need to run 100 mL/hr using a drip set with a drop factor of 10 gtt/mL. What is the drip rate in gtt/min?
What is about 17 gtt/min?
You’re preparing ketorolac. Order: 15 mg. Supply: 30 mg/1 mL. What volume do you draw?
What is 0.5 mL?
A 90 kg adult requires a medication at 2 mcg/kg. What is the total dose in micrograms?
What is 180 mcg?
An infusion requires 1,000 mL of fluid over 8 hours. What is the mL/hr rate?
What is 125 mL/hr?
You have 1,000 mL of solution containing 8 g of solute. What is the concentration as a percentage?
What is 0.8%?
A 250 mL infusion must run over 2 hours with a 15 gtt/mL set. What is the drip rate?
What is about 31 gtt/min?
You need 2 mg of midazolam. Your supply is 5 mg in 1 mL. How many mL is the dose?
What is 0.4 mL?
A pediatric patient weighs 32 kg. The ordered dose is 0.03 mg/kg. How many milligrams is the dose?
What is 0.96 mg?
You need to run 500 mL over 3 hours. What is the mL/hr rate?
What is about 167 mL/hr?
A 2% solution contains 2 g per 100 mL. How many grams of solute are in a 350 mL bag?
What is 7 g?
You must infuse 500 mL over 3 hours using a 20 gtt/mL administration set. What is the drops‑per‑minute rate?
What is about 56 gtt/min?
You must administer 0.3 mg of epinephrine at 1 mg/mL concentration (1:1,000). How many mL is the dose?
What is 0.3 mL?
A medication is dosed at 1.5 mg/kg. Your patient weighs 54 kg. Calculate the total dose.
What is 81 mg?
A 750 mL bag must finish in 5 hours. What is the infusion rate?
What is 150 mL/hr?
A medication is supplied as 40 mg in 2 mL. You need 10 mg. How many mL contain this dose?
What is 0.5 mL?
A 1,000 mL bag must run over 8 hours using a 60 gtt/mL microdrip set. What is the drip rate?
What is 125 gtt/min?