If a solution contains 250 mg/10 mL and the desired dose is 750 mg, how many mL will be required?

To determine how many mL of the solution is required to deliver a desired dose of 750 mg, we start by understanding the concentration of the solution. The solution has a concentration of 250 mg per 10 mL.

First, we find out how many mg are in 1 mL of the solution by dividing the amount of drug by the volume:

250 mg / 10 mL = 25 mg/mL.

Next, to find out how many mL are needed for 750 mg, we use the following calculation:

Desired dose (750 mg) ÷ concentration (25 mg/mL) = 30 mL.

However, this is not the answer provided. To clarify the reasoning behind the correct amount, the calculation indicates that to achieve the desired dose of 750 mg, the nurse will need to administer a total volume of 30 mL, not 25 mL. Therefore, understanding the relationships between concentration, desired dose, and calculated volume is crucial in dosage calculation.

If the answer is stated as 25 mL, there possibly needs to be clarification on dosage rounding or an overlooked factor, but based purely on the calculation principles discussed, a nurse would administer 30 mL to achieve 750