7. A patient has a urinary tract infection so Dr. Padron prescribes Ancef. A 1200 mL bag contains 400 mg of Ancef. If the patient receives 600 mL of fluid, how many mg of Ancef did the patient receive?

200 mg

Step-by-step explanation:

The dose (d) is proportional to amount of fluid received, so ...

d / (600 mL) = (400 mg) / (1200 mL)

d = (600 mL) (400 mg) / (1200 ml)

d = 200 mg

The patient received 200 mg of drug.