While rounding on your patient in the morning, the healthcare provider states that they are in fluid volume excess and need additional diuretics despite already taking Lasix daily. Your patient is a 2-year-old who weighs 18 kilograms. They order chlorothiazide. The order reads:
“Chlorothiazide, 10mg/kg, PO, TID.”
You read the label on the medication and in the drug administration guide and find the following:
Concentration: 250 mg/5mL
Safe pediatric dosage range: 5-10 mg/kg/day
Not to exceed 375 mg/day.
Which of the following is the priority nursing action?