A client is to receive drug N at 7.8 mg/hr. The medication is mixed: 100 mg of drug N is added to 250 mL of IV fluid. At what rate should the nurse set the IV pump?

Determine the concentration of the drug solution: You have 100 mg of drug N in 250 mL of IV fluid. This can be expressed as a ratio: 100 mg / 250 mL Calculate the mL per hour needed: The client needs 7.8 mg of drug N per hour. Use the concentration as a conversion factor to find the mL needed: (7.8 mg / hr) x (250 mL / 100 mg) = 19.5 mL/hr Set the IV pump: The IV pump should be set to infuse at 19.5 mL/hr.