A client has orders for ampicillin 350 mg IM daily. The directions state to reconstitute with 3.5 mL of sterile water for a concentration of 500 mg/mL. How much will the nurse give?


The nurse will give 0.7 mL.
Solution: Set up a proportion to solve. Recall that the concentration is 500 mg ampicillin per 1 mL of solution: 350 mg/500 mg × 1 mL. Solve: 0.7 mL.