If a doctor orders 2500 units of a medication and the vial contains 500 units/mL, how many mL should you draw up?

To determine how many milliliters to draw up for the ordered dosage of 2500 units when the vial contains 500 units/mL, you need to use a simple calculation based on the concentration of the medication in the vial.

First, since the vial contains 500 units in every 1 mL, you can set up the problem as follows:

1. Calculate the total volume needed: You need to find out how many mL will provide 2500 units. This can be calculated by dividing the total units needed by the concentration of the medication:

[

\text{mL required} = \frac{\text{Total units required}}{\text{Units per mL}} = \frac{2500 \text{ units}}{500 \text{ units/mL}}

]

2. Perform the calculation:

[

\text{mL required} = \frac{2500}{500} = 5 \text{ mL}

]

Drawing up 5 mL will provide exactly the 2500 units of the medication required as per the doctor's order. Therefore, the answer is correct because it accurately reflects the required volume based on the concentration