A nurse is preparing to administer foscarnet 60 mg/kg via intermittent IV bolus to a client who weighs 126 lb. Available is foscarnet 6,000 mg in 500 mL of 0.9% sodium chloride solution. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Convert the client's weight from pounds (lb) to kilograms (kg). Weight in kg = 126 lb / 2.2 lb/kg = 57.27 kg. Calculate the total desired dose in milligrams (mg). Desired dose (mg) = Desired dose (mg/kg) × Weight (kg) = 60 mg/kg × 57.27 kg = 3436.2 mg. Determine the concentration of the available foscarnet solution in milligrams per milliliter (mg/mL). Available concentration = Total medication (mg) / Total volume (mL) = 6000 mg / 500 mL = 12 mg/mL. Calculate the volume in milliliters (mL) to administer. Volume (mL) = Desired dose (mg) / Available concentration (mg/mL) = 3436.2 mg / 12 mg/mL = 286.35 mL. Round the answer to the nearest whole number. = 286 mL.