Nursing: Dosage Calculations

How many micrograms (mcg) are contained in 0.5 milligrams (mg)?

500 mcg

Convert 1.5 liters (L) to milliliters (mL).

1,500 mL

To convert a patient's weight from pounds (lbs) to kilograms (kg), what number must you divide the weight by?

2.2

A provider orders 500 mg of a medication. The stock available is 250 mg tablets. How many tablets should be administered?

2 tablets

A patient is to receive 1,000 mL of Normal Saline over 8 hours. What is the infusion rate in mL/hr?

125 mL/hr

How many milliliters (mL) are in one standard teaspoon (tsp)?

5 mL

Calculate the drip rate in gtt/min for 100 mL of IV fluid to be infused over 30 minutes with a drop factor of 15 gtt/mL.

50 gtt/min

A child weighing 15 kg is ordered 2 mg/kg of a medication. How many milligrams should be administered in total?

30 mg

A vial contains 1 gram of powder. Adding 9.5 mL of diluent yields a concentration of 100 mg/mL. How many mL are needed for a 250 mg dose?

2.5 mL

An IV is running at 125 mL/hr. How many hours will it take for a 500 mL bag to finish?

4 hours