Calculate the amount you will prepare for each dose. A prescriber orders 2,500,000 units penicillin intramuscularly. Penicillin is available in a vial containing 5,000,000 units. On the side of this vial it is written that 3.2 milliliters of sterile water should be added so that the concentration will be 1,000,000 units/mL. How many milliliters should be administered?
What will be an ideal response?
0.25 mL
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