Question

The nurse is reconstituting a 1000 mg vial of powdered medication. The instructions for the reconsitution are as follows: add 4.6 mL of Sterile Water for Injection to the powder and shake well. Resulting concentration is 500 mg per 2.5 mL. The nurse is to administer 250 mg IV to the patient. Which of the following is the correct dosage strength of the mixed medication?

		a. 1 g / 2.5 mL
		b. 1 g/ 4.6 ml
		c. 500 mg/ 2.5 ml
		d. 500 mg/ 4.6

Answer 1

Ans c) 500 mg / 2.5 mL

The correct dosage strength is the amount of drug present in the volume of solution.

Since here 500 mg of drug is present in 2.5 mL , the correct dosage will be 500 mg/2.5 mL