Final answer:
To administer 3 mg/kg of Ibuprofen every 6 hours to a 33kg child, you will need to give approximately 3.96 ml per dose.
Step-by-step explanation:
To calculate the amount of Ibuprofen to be administered per dose, we first need to determine the total amount of Ibuprofen needed based on the weight of the child. The doctor has prescribed a dosage of 3 mg/kg, and the child weighs 33 kg. Therefore, the total amount of Ibuprofen needed is 3 mg/kg * 33 kg = 99 mg.
Next, we need to convert the amount of Ibuprofen from milligrams (mg) to milliliters (ml) using the provided information that the pharmacy dispenses 50 mg/2 ml. To do this, we can set up a proportion:
50 mg/2 ml = 99 mg/x ml
Cross-multiplying, we get:
50 mg * x ml = 99 mg * 2 ml
Simplifying, we get:
x ml = (99 mg * 2 ml) / 50 mg = 3.96 ml
Therefore, you will administer approximately 3.96 ml of Ibuprofen per dose to the child.