Question

The prescriber orders acyclovir (Zovirax) 250 mg. The nurse has on hand a vial of acyclovir (Zovirax) in powdered form labeled 1000 mg. The nurse reconstitutes the drug as directed, adding 20 mL of diluent to yield a strength of 50 mg in 1 mL. In preparing to administer the drug, how many mL should the nurse withdraw from the vial?1 6. milliliter(s)

Answer 1

Ans) Order: Acylovir ( Zovirax) - 250 mg

Vial contains 1000 mg

Preparation: Adding 20 ml of dilutent in 1000mg yields a strength of 50mg in 1 ml

50mg= 1 ml

250mg= x

Let x be the amount in ml to administer a dose of 250 mg

x= 250/50= 5 ml

So, the nurse should withdraw 5 ml from the vial to administer 250 mg Acylovir.