A nurse is preparing to administer metronidazole 7.5 mg/kg PO to a client who weighs 146.7 lb. Available is metronidazole 500 mg tablets. How many tablets should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use trailing zero.)

Convert the client's weight from pounds to kilograms: There are 2.205 pounds in 1 kilogram. 146.7 lb = 146.7 lb / 2.205 lb/kg = 66.53 kg (rounded to two decimal places). Determine the total dosage: The client is prescribed 7.5 mg/kg of metronidazole. The client weighs 66.53 kg. The total dosage is 7.5 mg/kg x 66.53 kg = 498.975 mg. Determine the number of tablets per dose: Each tablet contains 500 mg of metronidazole. The nurse needs to administer 498.975 mg per dose. To find the number of tablets per dose, we can set up a proportion: 500 mg / 1 tablet = 498.975 mg / x tablets Cross-multiplying gives us: 500x = 498.975 Dividing both sides by 500, we get: x = 0.99795 tablets Round the answer to the nearest whole number: Rounding 0.99795 to the nearest whole number gives us 1 tablet.