A 29-pound preschooler is being treated for impetigo. The primary health care provider orders 40mg/kg/day of amoxicillin/clavulanate by mouth to be administered in divided doses every 12 hours. The elixir comes in a strength of 250 mg/5 mL. How many milliliters of amoxicillin/clavulanate should the nurse administer to this client per dose? (Round to the nearest tenth).
The Correct Answer is ["5.3"]
1 kilogram equals 2.2 pounds.
The preschooler weighs 29 pounds, which is approximately 13.18 kilograms (29/2.2). The order is for 40 mg/kg/day
13.18 kg * 40 mg/kg = 527.2 mg/day.
Since the medication is to be administered every 12 hours, divide this daily dosage by 2 to get the per dose amount: 527.2 mg/day / 2 = 263.6 mg/dose.
Now, using the concentration of the elixir, which is 250 mg/5 mL, set up a proportion to find out how many milliliters are needed for the prescribed dose: 250 mg : 5 mL = 263.6 mg : X mL.
Solving for X gives us (263.6 mg * 5 mL) / 250 mg = 5.272 mL per dose.
Rounding to the nearest tenth, the nurse should administer 5.3 mL per dose.
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