A nurse is administering medications to a client who weighs 132 lb. The prescription reads chloramphenicol, 50mg/kg/day in 4 divided doses. Available is chloramphenicol 100 mg/mL. How many mL should the nurse give with each dose?

The correct answer is A (7.5 mL). To calculate the dose, first determine the total daily dose: 50mg/kg/day x 132 lb = 6600 mg. Next, divide the total daily dose by the number of doses per day (4 doses) to get the dose per administration: 6600 mg / 4 = 1650 mg. Finally, calculate the volume needed for each dose by dividing the dose per administration by the concentration of the medication (100 mg/mL): 1650 mg / 100 mg/mL = 16.5 mL. Since the question specifies 4 divided doses, divide the total daily volume (16.5 mL) by 2 to get the volume for each divided dose: 16.5 mL / 2 = 8.25 mL, which rounds to 7.5 mL. Choice B is incorrect because it does not account for the divided doses accurately. Choices C and D are incorrect as they do not align