Question

The vial of a powdered medication is labeled ampicillin (Omnipen-N) 250 mg. The instructions for reconstitution direct adding 0.9 mL sterile water to yield 125 mg per 0.5 mL. The client is prescribed ampicillin (Omnipen-N) 350 mg. How many mL will you administer? (Place your answer in 10th decimal and place only the numerical value in the space provided.)

Answer 1

To administer 350 mg of ampicillin, you will need to administer 1.26 mL of the reconstituted medication.

Step-by-step explanation:

To determine the volume of ampicillin to administer, we can use the given information about the reconstitution of the medication. According to the instructions, adding 0.9 mL of sterile water to the powdered medication yields 125 mg per 0.5 mL. Therefore, the concentration of the reconstituted medication is 250 mg per 0.9 mL.

To find out how much mL of the reconstituted medication we need to administer, we can set up a proportion. Let x represent the volume of the reconstituted medication.

(250 mg / 0.9 mL) = (350 mg / x)

By cross-multiplying, we get:

250x = 0.9 * 350

x = (0.9 * 350) / 250

x = 1.26 mL (rounded to the nearest tenth).