A healthcare provider is preparing to administer ibuprofen 5 mg per kg every 6 hours PRN for temperatures above 38.0 degrees Celsius or 100.5 degrees Fahrenheit to an infant who weighs 17.6 lb. The infant has a temperature of 38.4 degrees Celsius or 101.2 degrees Fahrenheit. Available is ibuprofen liquid 100 mg/5 ml. How many milliliters should the healthcare provider administer to the infant?
Correct Answer: C
Rationale: To calculate the correct dosage, first convert the infant's weight to kilograms: 17.6 lb = 8 kg. The prescribed dose is 5 mg/kg, so for an 8 kg infant, the total dose required is 40 mg. Since the available ibuprofen liquid is 100 mg/5 ml, to find out how many milliliters to administer, divide the total dose (40 mg) by the concentration of the liquid (100 mg/5 ml), which equals 2 ml. Therefore, the healthcare provider should administer 2 ml of ibuprofen to the infant.