A nurse is ordered to administer ampicillin 125 mg intramuscularly every 6 hours to a 10-kg child with a respiratory tract infection. the drug label reads, “the recommended dose for a client weighing less than 40 kg is 25 to 50 mg/kg/day intramuscularly or intravenously in equally divided doses at 6- to 8-hour intervals.” the drug concentration is 125 mg/5 ml. which nursing interventions are appropriate at this time? select all that apply.