Dosage Calculations

Dosage Calculations ( 10 Questions)

A nurse is preparing to administer a liquid medication with a concentration of 250 mg/5 mL. The prescribed dose is 500 mg. How many mL of the medication should the nurse administer?



Correct Answer: B

To calculate the volume of a liquid medication to administer based on its concentration and the prescribed dose, the nurse should divide the prescribed dose by the concentration and multiply by the volume in which the concentration is expressed. In this case, the concentration is 250 mg/5 mL and the prescribed dose is 500 mg, so the nurse should administer (500 mg / 250 mg) x 5 mL = 10 mL of the medication.




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