Question

Ondansetron 4 mg IV every 6 hours as needed for nausea is

ordered. The Ondansetron is available in a 2 mg/mL concentration.
How many milliliters would the nurse administer with each dose?

Answer 1

The nurse would administer 2 milliliters of Ondansetron for each 4 mg dose, using the concentration of 2 mg/mL.

Step-by-step explanation:

The question requires a calculation of the volume of a drug solution to administer based on the prescribed dose and the concentration of the drug. The prescribed medication is Ondansetron, which is used to prevent nausea and vomiting. The order is for 4 mg of Ondansetron, and it is available in a 2 mg/mL concentration.

To find out how many milliliters to administer for a 4 mg dose when the drug concentration is 2 mg/mL, you use the following calculation:

Dose (mg) ÷ Concentration (mg/mL) = Volume to administer (mL)

So for this medication order, it would be:

4 mg ÷ 2 mg/mL = 2 mL

Therefore, the nurse would administer 2 milliliters of Ondansetron for each dose, as needed for nausea.